Best turbo kit out of Greddy/JWT/ and TN?
Originally Posted by jtgli
Great, Noah seemed like a really cool guy and deff knew a lot and helped me out a lot. Looks like come winter ill be going JWT TT : ) One last thing about the kit tho. Will 450rwhp be ok to run on a stock block?
Registered User
Joined: Mar 2006
Posts: 207
Likes: 0
From: Florida
ok well i have a little input. From a reliable source that spoke directly with jim wolfe. From what i understand, Jim Wolfe is working very hard to gain CARB certification which is why the kit does not change the fuel system. The kit is designed for around +- 400 rwhp. At this level through there testing they have not seen any issues with the stock block or fuel system. Jim wolfe has worked extensivley on the reliability of this kit. Now if you push this kit past the threshhold of the out of the box tune you may have problems. The JWT was desinged to be reliable and safe at a certain level. Past that you are on your own. That is my take on it.
This kit doesnt use and BOV or Bypass valves? I thought it was good to have them. Is there a reason why they dont run them. If anyone know please answer i didnt want to start another thread just to ask this.
Thread Starter
Registered User
iTrader: (13)
Joined: Jun 2006
Posts: 786
Likes: 0
From: Harrisburg, Pa
Well to get onto the main topic ha i would rather a TT kit, i like the TN kit but im just not a fan or single turbo really. Has anyone on here experieced any probs with the greddy kit?
Originally Posted by chimmike
there are plenty of people running 450-500whp without any issues.......do you read the board much?
Thread Starter
Registered User
iTrader: (13)
Joined: Jun 2006
Posts: 786
Likes: 0
From: Harrisburg, Pa
OK well about all these people blowing their motors with the higher hp kits, when building the motor for the Z to handle 450-500rwhp waht all is needed beside the obvious of forge rods and pistons, does compression need to be lowered or anything else?
Originally Posted by jtgli
Another kit I have found that seems to be interesting and looks to perform well is the APS TT kit. Anyone know any info on it? Perform well??
Is it just me or why has no one mentioned the APS TT?
It's the most complete kit, it's been out the longest (other than the greddy which in my opinion is more of a tuner kit) and has fantastic track record.
I'm running 475whp daily on a stock block for the last 3 months and prior to that 435 whp for about 8 months.
I run it at the track weekly and have had 0 turbo related problems.
APS is the kid hands down for me
It's the most complete kit, it's been out the longest (other than the greddy which in my opinion is more of a tuner kit) and has fantastic track record.
I'm running 475whp daily on a stock block for the last 3 months and prior to that 435 whp for about 8 months.
I run it at the track weekly and have had 0 turbo related problems.
APS is the kid hands down for me
i think having a peak torque number that's around 450+ is a lot worse for the engine than the 450whp itself in the upper rpms given that you're using higher octane fuel and a good tune with good cooling
people with turbos seem to snap rods at lot at 4000ish rpms where peak torque usually is or at 8500 rpms with a missed shift
people with turbos seem to snap rods at lot at 4000ish rpms where peak torque usually is or at 8500 rpms with a missed shift
I would definitly search for each of these turbo kits prior to buying any of them. I would also most definitly not rely on this thread because you are using to few of replies to make a huge decision. You need to search for them and read up on every one that you consider a viable option so that you have a true outlook on what each kits strong points and weaknesses are.
My advice, I would either buy some rods and pistons and have them put in or I would stay somewhere under 450whp. Right between 410 and 420 seems to be a sweet spot for a bunch of the members on this board.
Regarding the turbo kits that you have as options:
Greddy:
This kit seems to have huge power potential when it comes to the stock turbos. Capable of 600whp and if you get them rebuilt (contact people such as Sharif at Forged) they can go even higher in power. This kit is not an out of the box kit though. This means that you will need tuning for sure. I believe that you also have to buy the blow off valve for this kit.
JWT:
This kit seems to be an amazing kit. Little lag and decent power capabilities. I do not know a whole lot about this kit because very few people have really gotten the kit due to the ongoing search for CARB Cert. From what I have heard it has good quality. I am not to familiar with what it uses for fuel/timing management.
APS:
Very complete kit. The main problem with this kit is that it takes an APS certified shop to tune it. I have seen some fairly big numbers from this kit (bigbri +700whp). However this was with upgraded forged actuators for the internal wastegates on the turbos. Some have said that the problem with the APS kit is that it is overengineered meaning that it is great out of the box but it does not always react well to changes in the system. Many have complained about smoke issues and how hard it is to get replacement parts. Keep in mind that there is a million reasons there could be smoke.
TN:
Nice single turbo kit that is affordable. Has different levels so you can buy the kit that is designed to meet your needs and desired power level. More options for tuners as any tuner can for the most part tune the kit. Although you would think that it would have a ton of lag based on the piping route there has been few complaints if any (can't read every post lol).
Overall, there are a few things I would like to point out. You are fairly concerned with lag it would seem. I think that the "no lag" statement for the JWT may be misleading in that it shouldnt be the deciding factor in what kit you go with. I had a custom turbo kit on my car that had some fairly long piping to the hot side of the turbo and was using a Turbonetics T70 turbo which is a huge turbo. I noticed very little lag on my car to say the least. I think that lag may be a bit over emphasized in order to sell certain kits. Although the Greddy kit comes with fairly large turbos I rarely hear someone complain about lag if ever.
Overall I would look at a few different things. As long as you are getting it tuned each kit is more than capable of meeting your specified horsepower goals. However, I am extremely surprised that AAM would not suggest a fuel return system to you. I would make that a must. Fuel is just one of those things that you are just better off doing right the first time because if you blow your engine, trust me, you will get a fuel system the second time around or whatever it is that you shortcut.
If you get the JWT I would put a BOV on it. The BOV is used to reduce or eliminate compressor "surge" or air trying to flow back through the turbo during periods when the throttle is closed such as shifting. If you do go with the JWT, maybe look into getting a set of Greddy or Turbonetics injectors that come with their kits. There is a large number of members who buy either one of those kits and just gets larger injectors from the get go never bothering to install the injectors that came with the kit. It is a cheap option as compered to injectors such as RC Engineering injectors.
Overall, no matter what kit you get, the key to successfully boosting a Z is not the kit (aside from things such as the fuel system at higher power levels like you seek), it is the tuner. Tuning the Z is no easy thing to do as the stock ECU likes to make things complicated. Make sure that your tuner knows what they are doing (AAM does obviously).
I learned the hard way lol. If you have any questions feel free to PM me. Just don't go and get the JWT kit because of a few replies. I would also suggest that you stay away from calling up the actual manufacturers and asking them as obviously they want to promote their product. This forum is a huge library with nearly everything you need to make the right decision. Just take the time and look it up. Nothing against AAM because I have dealt with them and they are great, but I would not rely soley on what they say because they are obviously a business and will to a point try to sell you what they have. Other people's good and bad experiences will be your best friend.
My advice, I would either buy some rods and pistons and have them put in or I would stay somewhere under 450whp. Right between 410 and 420 seems to be a sweet spot for a bunch of the members on this board.
Regarding the turbo kits that you have as options:
Greddy:
This kit seems to have huge power potential when it comes to the stock turbos. Capable of 600whp and if you get them rebuilt (contact people such as Sharif at Forged) they can go even higher in power. This kit is not an out of the box kit though. This means that you will need tuning for sure. I believe that you also have to buy the blow off valve for this kit.
JWT:
This kit seems to be an amazing kit. Little lag and decent power capabilities. I do not know a whole lot about this kit because very few people have really gotten the kit due to the ongoing search for CARB Cert. From what I have heard it has good quality. I am not to familiar with what it uses for fuel/timing management.
APS:
Very complete kit. The main problem with this kit is that it takes an APS certified shop to tune it. I have seen some fairly big numbers from this kit (bigbri +700whp). However this was with upgraded forged actuators for the internal wastegates on the turbos. Some have said that the problem with the APS kit is that it is overengineered meaning that it is great out of the box but it does not always react well to changes in the system. Many have complained about smoke issues and how hard it is to get replacement parts. Keep in mind that there is a million reasons there could be smoke.
TN:
Nice single turbo kit that is affordable. Has different levels so you can buy the kit that is designed to meet your needs and desired power level. More options for tuners as any tuner can for the most part tune the kit. Although you would think that it would have a ton of lag based on the piping route there has been few complaints if any (can't read every post lol).
Overall, there are a few things I would like to point out. You are fairly concerned with lag it would seem. I think that the "no lag" statement for the JWT may be misleading in that it shouldnt be the deciding factor in what kit you go with. I had a custom turbo kit on my car that had some fairly long piping to the hot side of the turbo and was using a Turbonetics T70 turbo which is a huge turbo. I noticed very little lag on my car to say the least. I think that lag may be a bit over emphasized in order to sell certain kits. Although the Greddy kit comes with fairly large turbos I rarely hear someone complain about lag if ever.
Overall I would look at a few different things. As long as you are getting it tuned each kit is more than capable of meeting your specified horsepower goals. However, I am extremely surprised that AAM would not suggest a fuel return system to you. I would make that a must. Fuel is just one of those things that you are just better off doing right the first time because if you blow your engine, trust me, you will get a fuel system the second time around or whatever it is that you shortcut.
If you get the JWT I would put a BOV on it. The BOV is used to reduce or eliminate compressor "surge" or air trying to flow back through the turbo during periods when the throttle is closed such as shifting. If you do go with the JWT, maybe look into getting a set of Greddy or Turbonetics injectors that come with their kits. There is a large number of members who buy either one of those kits and just gets larger injectors from the get go never bothering to install the injectors that came with the kit. It is a cheap option as compered to injectors such as RC Engineering injectors.
Overall, no matter what kit you get, the key to successfully boosting a Z is not the kit (aside from things such as the fuel system at higher power levels like you seek), it is the tuner. Tuning the Z is no easy thing to do as the stock ECU likes to make things complicated. Make sure that your tuner knows what they are doing (AAM does obviously).
I learned the hard way lol. If you have any questions feel free to PM me. Just don't go and get the JWT kit because of a few replies. I would also suggest that you stay away from calling up the actual manufacturers and asking them as obviously they want to promote their product. This forum is a huge library with nearly everything you need to make the right decision. Just take the time and look it up. Nothing against AAM because I have dealt with them and they are great, but I would not rely soley on what they say because they are obviously a business and will to a point try to sell you what they have. Other people's good and bad experiences will be your best friend.
Also, as mentioned above, while searching the forums keep in mind that we are opinionated. This forum loves Turbonetics. 350zmotoring.com loves APS. Do not get caught up in the "battle of the forums" as it could affect your decision. Just because someone on this forum bashes APS and someone on the other forum bashes TN does not necessarily mean that what they are saying is fact. Keep that in mind.
Originally Posted by Quamen
I would definitly search for each of these turbo kits prior to buying any of them. I would also most definitly not rely on this thread because you are using to few of replies to make a huge decision. You need to search for them and read up on every one that you consider a viable option so that you have a true outlook on what each kits strong points and weaknesses are.
My advice, I would either buy some rods and pistons and have them put in or I would stay somewhere under 450whp. Right between 410 and 420 seems to be a sweet spot for a bunch of the members on this board.
Regarding the turbo kits that you have as options:
Greddy:
This kit seems to have huge power potential when it comes to the stock turbos. Capable of 600whp and if you get them rebuilt (contact people such as Sharif at Forged) they can go even higher in power. This kit is not an out of the box kit though. This means that you will need tuning for sure. I believe that you also have to buy the blow off valve for this kit.
JWT:
This kit seems to be an amazing kit. Little lag and decent power capabilities. I do not know a whole lot about this kit because very few people have really gotten the kit due to the ongoing search for CARB Cert. From what I have heard it has good quality. I am not to familiar with what it uses for fuel/timing management.
APS:
Very complete kit. The main problem with this kit is that it takes an APS certified shop to tune it. I have seen some fairly big numbers from this kit (bigbri +700whp). However this was with upgraded forged actuators for the internal wastegates on the turbos. Some have said that the problem with the APS kit is that it is overengineered meaning that it is great out of the box but it does not always react well to changes in the system. Many have complained about smoke issues and how hard it is to get replacement parts. Keep in mind that there is a million reasons there could be smoke.
TN:
Nice single turbo kit that is affordable. Has different levels so you can buy the kit that is designed to meet your needs and desired power level. More options for tuners as any tuner can for the most part tune the kit. Although you would think that it would have a ton of lag based on the piping route there has been few complaints if any (can't read every post lol).
Overall, there are a few things I would like to point out. You are fairly concerned with lag it would seem. I think that the "no lag" statement for the JWT may be misleading in that it shouldnt be the deciding factor in what kit you go with. I had a custom turbo kit on my car that had some fairly long piping to the hot side of the turbo and was using a Turbonetics T70 turbo which is a huge turbo. I noticed very little lag on my car to say the least. I think that lag may be a bit over emphasized in order to sell certain kits. Although the Greddy kit comes with fairly large turbos I rarely hear someone complain about lag if ever.
Overall I would look at a few different things. As long as you are getting it tuned each kit is more than capable of meeting your specified horsepower goals. However, I am extremely surprised that AAM would not suggest a fuel return system to you. I would make that a must. Fuel is just one of those things that you are just better off doing right the first time because if you blow your engine, trust me, you will get a fuel system the second time around or whatever it is that you shortcut.
If you get the JWT I would put a BOV on it. The BOV is used to reduce or eliminate compressor "surge" or air trying to flow back through the turbo during periods when the throttle is closed such as shifting. If you do go with the JWT, maybe look into getting a set of Greddy or Turbonetics injectors that come with their kits. There is a large number of members who buy either one of those kits and just gets larger injectors from the get go never bothering to install the injectors that came with the kit. It is a cheap option as compered to injectors such as RC Engineering injectors.
Overall, no matter what kit you get, the key to successfully boosting a Z is not the kit (aside from things such as the fuel system at higher power levels like you seek), it is the tuner. Tuning the Z is no easy thing to do as the stock ECU likes to make things complicated. Make sure that your tuner knows what they are doing (AAM does obviously).
I learned the hard way lol. If you have any questions feel free to PM me. Just don't go and get the JWT kit because of a few replies. I would also suggest that you stay away from calling up the actual manufacturers and asking them as obviously they want to promote their product. This forum is a huge library with nearly everything you need to make the right decision. Just take the time and look it up. Nothing against AAM because I have dealt with them and they are great, but I would not rely soley on what they say because they are obviously a business and will to a point try to sell you what they have. Other people's good and bad experiences will be your best friend.
My advice, I would either buy some rods and pistons and have them put in or I would stay somewhere under 450whp. Right between 410 and 420 seems to be a sweet spot for a bunch of the members on this board.
Regarding the turbo kits that you have as options:
Greddy:
This kit seems to have huge power potential when it comes to the stock turbos. Capable of 600whp and if you get them rebuilt (contact people such as Sharif at Forged) they can go even higher in power. This kit is not an out of the box kit though. This means that you will need tuning for sure. I believe that you also have to buy the blow off valve for this kit.
JWT:
This kit seems to be an amazing kit. Little lag and decent power capabilities. I do not know a whole lot about this kit because very few people have really gotten the kit due to the ongoing search for CARB Cert. From what I have heard it has good quality. I am not to familiar with what it uses for fuel/timing management.
APS:
Very complete kit. The main problem with this kit is that it takes an APS certified shop to tune it. I have seen some fairly big numbers from this kit (bigbri +700whp). However this was with upgraded forged actuators for the internal wastegates on the turbos. Some have said that the problem with the APS kit is that it is overengineered meaning that it is great out of the box but it does not always react well to changes in the system. Many have complained about smoke issues and how hard it is to get replacement parts. Keep in mind that there is a million reasons there could be smoke.
TN:
Nice single turbo kit that is affordable. Has different levels so you can buy the kit that is designed to meet your needs and desired power level. More options for tuners as any tuner can for the most part tune the kit. Although you would think that it would have a ton of lag based on the piping route there has been few complaints if any (can't read every post lol).
Overall, there are a few things I would like to point out. You are fairly concerned with lag it would seem. I think that the "no lag" statement for the JWT may be misleading in that it shouldnt be the deciding factor in what kit you go with. I had a custom turbo kit on my car that had some fairly long piping to the hot side of the turbo and was using a Turbonetics T70 turbo which is a huge turbo. I noticed very little lag on my car to say the least. I think that lag may be a bit over emphasized in order to sell certain kits. Although the Greddy kit comes with fairly large turbos I rarely hear someone complain about lag if ever.
Overall I would look at a few different things. As long as you are getting it tuned each kit is more than capable of meeting your specified horsepower goals. However, I am extremely surprised that AAM would not suggest a fuel return system to you. I would make that a must. Fuel is just one of those things that you are just better off doing right the first time because if you blow your engine, trust me, you will get a fuel system the second time around or whatever it is that you shortcut.
If you get the JWT I would put a BOV on it. The BOV is used to reduce or eliminate compressor "surge" or air trying to flow back through the turbo during periods when the throttle is closed such as shifting. If you do go with the JWT, maybe look into getting a set of Greddy or Turbonetics injectors that come with their kits. There is a large number of members who buy either one of those kits and just gets larger injectors from the get go never bothering to install the injectors that came with the kit. It is a cheap option as compered to injectors such as RC Engineering injectors.
Overall, no matter what kit you get, the key to successfully boosting a Z is not the kit (aside from things such as the fuel system at higher power levels like you seek), it is the tuner. Tuning the Z is no easy thing to do as the stock ECU likes to make things complicated. Make sure that your tuner knows what they are doing (AAM does obviously).
I learned the hard way lol. If you have any questions feel free to PM me. Just don't go and get the JWT kit because of a few replies. I would also suggest that you stay away from calling up the actual manufacturers and asking them as obviously they want to promote their product. This forum is a huge library with nearly everything you need to make the right decision. Just take the time and look it up. Nothing against AAM because I have dealt with them and they are great, but I would not rely soley on what they say because they are obviously a business and will to a point try to sell you what they have. Other people's good and bad experiences will be your best friend.
Originally Posted by Quamen
Also, as mentioned above, while searching the forums keep in mind that we are opinionated. This forum loves Turbonetics. 350zmotoring.com loves APS. Do not get caught up in the "battle of the forums" as it could affect your decision. Just because someone on this forum bashes APS and someone on the other forum bashes TN does not necessarily mean that what they are saying is fact. Keep that in mind.
But anyway they went to the other site and want to bash on this site and say that we are Turbonetics lovers or whatever.
I don't think that is honestly the case, we just happen to have a decent amount of owners who come here since it is the most traveled site.
Though I see what you are saying and agree. Some people think what they have is the best and that others should get it too.
But I like choices, I like to see different products, I like it that we all don't have the exact same set-ups cause that would be pretty boring.
So with that all the choices have Pro's and Con's. And as you were pointing to, searching and reading the past threads will help someone get a better idea on what they are looking for.
Thread Starter
Registered User
iTrader: (13)
Joined: Jun 2006
Posts: 786
Likes: 0
From: Harrisburg, Pa
That was a great post Quamen, very informative and helpful. I have looked at the APS twin turbo kit. It seems to be a very good kit but is it tunable at all? I saw how you said that it seems the kit doesnt react well to other mods.
Thread Starter
Registered User
iTrader: (13)
Joined: Jun 2006
Posts: 786
Likes: 0
From: Harrisburg, Pa
That was a great post Quamen, very informative and helpful. I have looked at the APS twin turbo kit. It seems to be a very good kit but is it tunable at all? I saw how you said that it seems the kit doesnt react well to other mods.