VQ30DETT swap?
heres a good link, I have DET parts available if anyone needs specs.
https://my350z.com/forum/showthread....hlight=vq30det
https://my350z.com/forum/showthread....hlight=vq30det
Originally Posted by Resolute
There is no such production engine as a VQ30DETT, maybe why no one bothers with a swap
The GT500 cars use a custom VQ30 block, the VQ30DET (single turbo, no valve timing) is available out of a Cedric or Gloria, but why bother when you could TT the 35?
The Z32 (300ZX) used the VG30, an iron block V6 that also saw modified duty in the last Frontier truck chassis. No one is dumb enough to downgrade to that over the VQ35.
The GT500 cars use a custom VQ30 block, the VQ30DET (single turbo, no valve timing) is available out of a Cedric or Gloria, but why bother when you could TT the 35?
The Z32 (300ZX) used the VG30, an iron block V6 that also saw modified duty in the last Frontier truck chassis. No one is dumb enough to downgrade to that over the VQ35.
FYI, First off VQ30dett isnt a production motor, it is a aftermarket motor used in gt500 cars second off a Z32 Never came with a VQ, third the VQ30det came in the overseas Q45 (cima cedric gloria Y33 chassis code) it has no form of VTC its a exact same design as a VQ30 maxima motor except a better internal and different IM. I have specs if anyone needs them.
Originally Posted by hypeiv
was the VQ30DET even in RWD cars? I thought the VQ30 was an old maxima engine?
help a noob out please.
help a noob out please.
VQ30de is a maxima motor a32 and early a33
Originally Posted by tilleys99
VQ30det was a JDM motor for a Y33 which in america is a q45
VQ30de is a maxima motor a32 and early a33
VQ30de is a maxima motor a32 and early a33
Originally Posted by Zexy
Tilley would their be any issues in terms of fitment with the VQ30DET/Y33 motor into the Z33?
I no longer have the block (rwd block internals went into fwd block) but i believe the mounting points are the exact same, hell you could even use the VTCs if you swapped them over from your original motor. This motor comes with 9to1 comp. only down fall is the heads dont flow near as good as 3.5 heads. I did a dyno of a 3.5 with 3.0 heads (11.5to1)then with 3.5 heads (10.3to1) i peaked about 5 whp more with 3.5 heads then with the 3.0 but mid range i gained almost 15whp and 20tq with 3.5 heads. thats why IMHO the vq35 block and pistons with VQ30det crank and rods would be the best way too go.
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From: Texas
Originally Posted by Resolute
The Z32 (300ZX) used the VG30, an iron block V6 that also saw modified duty in the last Frontier truck chassis. No one is dumb enough to downgrade to that over the VQ35.
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Joined: Jan 2007
Posts: 103
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From: Japan
HI all new here and was looking for info on the vq30det.
Nobody in japan is really doing any tuning on either, however I have a freind who has done the rb26 swap into a Z.
Ok so I have been working with a shop here in Japan and this is what we got for the VQ30det
It Has bigger rods, 9.1 compression pistions, piston coolers, fuel return, and better flowing heads. It dosent have the VVT as we all know but you loose that if you use a say a Fcon.
Now tomei makes pistons and cams for it and there isnt really anything else out there for it in japan. Nismo makes a top end kit for the 35 but its 10g.
So what we have done so far is rebuilt the VQ30det with the tomei parts and are now puting the X manifold on. Were looking at ECU choices henc why I have joined this forum.
IF anyone has any imput on a Stand allone or if they know if the Z harness will work Please any advice.
By the way the VQdet can be bought for less than 1200 bucks here with everything on it. 1300 for some pistons and another 1350 for the cams and you can have a solid 500hp with a decent turbo choice.
Im sorry if Im digging up a real old post but to be honest and you can ask here. Nobody in japan has done what you guys in the states have with a VQ35. Top speed has a few parts including a sweet little ITB set up and some TBI's but other than that it just cost to much to build one.
The Turbo interprize kit will run close to 10g so thats why I have been experimenting with the 30det.
Nobody in japan is really doing any tuning on either, however I have a freind who has done the rb26 swap into a Z.
Ok so I have been working with a shop here in Japan and this is what we got for the VQ30det
It Has bigger rods, 9.1 compression pistions, piston coolers, fuel return, and better flowing heads. It dosent have the VVT as we all know but you loose that if you use a say a Fcon.
Now tomei makes pistons and cams for it and there isnt really anything else out there for it in japan. Nismo makes a top end kit for the 35 but its 10g.
So what we have done so far is rebuilt the VQ30det with the tomei parts and are now puting the X manifold on. Were looking at ECU choices henc why I have joined this forum.
IF anyone has any imput on a Stand allone or if they know if the Z harness will work Please any advice.
By the way the VQdet can be bought for less than 1200 bucks here with everything on it. 1300 for some pistons and another 1350 for the cams and you can have a solid 500hp with a decent turbo choice.
Im sorry if Im digging up a real old post but to be honest and you can ask here. Nobody in japan has done what you guys in the states have with a VQ35. Top speed has a few parts including a sweet little ITB set up and some TBI's but other than that it just cost to much to build one.
The Turbo interprize kit will run close to 10g so thats why I have been experimenting with the 30det.
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Joined: Jun 2003
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From: Miami/Kendall, Florida
Originally Posted by DXJP
HI all new here and was looking for info on the vq30det.
Nobody in japan is really doing any tuning on either, however I have a freind who has done the rb26 swap into a Z.
Ok so I have been working with a shop here in Japan and this is what we got for the VQ30det
It Has bigger rods, 9.1 compression pistions, piston coolers, fuel return, and better flowing heads. It dosent have the VVT as we all know but you loose that if you use a say a Fcon.
Now tomei makes pistons and cams for it and there isnt really anything else out there for it in japan. Nismo makes a top end kit for the 35 but its 10g.
So what we have done so far is rebuilt the VQ30det with the tomei parts and are now puting the X manifold on. Were looking at ECU choices henc why I have joined this forum.
IF anyone has any imput on a Stand allone or if they know if the Z harness will work Please any advice.
By the way the VQdet can be bought for less than 1200 bucks here with everything on it. 1300 for some pistons and another 1350 for the cams and you can have a solid 500hp with a decent turbo choice.
Im sorry if Im digging up a real old post but to be honest and you can ask here. Nobody in japan has done what you guys in the states have with a VQ35. Top speed has a few parts including a sweet little ITB set up and some TBI's but other than that it just cost to much to build one.
The Turbo interprize kit will run close to 10g so thats why I have been experimenting with the 30det.
Nobody in japan is really doing any tuning on either, however I have a freind who has done the rb26 swap into a Z.
Ok so I have been working with a shop here in Japan and this is what we got for the VQ30det
It Has bigger rods, 9.1 compression pistions, piston coolers, fuel return, and better flowing heads. It dosent have the VVT as we all know but you loose that if you use a say a Fcon.
Now tomei makes pistons and cams for it and there isnt really anything else out there for it in japan. Nismo makes a top end kit for the 35 but its 10g.
So what we have done so far is rebuilt the VQ30det with the tomei parts and are now puting the X manifold on. Were looking at ECU choices henc why I have joined this forum.
IF anyone has any imput on a Stand allone or if they know if the Z harness will work Please any advice.
By the way the VQdet can be bought for less than 1200 bucks here with everything on it. 1300 for some pistons and another 1350 for the cams and you can have a solid 500hp with a decent turbo choice.
Im sorry if Im digging up a real old post but to be honest and you can ask here. Nobody in japan has done what you guys in the states have with a VQ35. Top speed has a few parts including a sweet little ITB set up and some TBI's but other than that it just cost to much to build one.
The Turbo interprize kit will run close to 10g so thats why I have been experimenting with the 30det.
great info, thanks for your input!
Glad to see there are other alternatives out there.
personally the best jdm swap would be the rb26 or a 2jz even if they add about 150 pounds more you can make double the power the VQ is making now. Im also thinking about a V* but don’t know if it will fit and the point is to boost only set up I see working is a vette motor with a rear mount turbo. Im selling all my FI things I want to do this swap and im doing research I have the shop that is going to do the job. The VQ is going to make power but I think its going to be an engine that will give a lot of problems at high horsepower. I like it because its a torquy motor but just hate the fact that its aluminum. And remember aluminum melts at lower heat levels then iron so at high horsepower temperature is a key point. I think nissan just messed up in not making the motor turbo from factory with an iron block.
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Joined: Jan 2007
Posts: 103
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From: Japan
Doing a engine swap is nothing infact I could swap this in
800RWHP SR20DET
But thats not serving my purpose. For what people are spending to get real 500 and up numbers the VQ30det is a much cheeper solution.
The block is capable of over 600hp with out crazy porting, machining, and parts/labor needed to get those numbers out of the 3.5. As well it already has the fuel return built in to the injecter rails.
I have seen the numuros RB'S 2jz'Z and the SR swaps but that isnot addressing the issue of extracting big power out of off the shelf parts. Infact there is a CPU for this engine and I have seen real numbers at 375hp on the stock setup. The turbo runs out at that limit. But for the guys that have a tt set up and are looking to expand their power abilities this would be a very cost effective alternative.
Here is one stuffed into a S chassis. He will be running a standalone on it but I would like to explore the possabilities of using the factory Z harnes and just plugging in a Fcon or a tuned ecu.
800RWHP SR20DET
But thats not serving my purpose. For what people are spending to get real 500 and up numbers the VQ30det is a much cheeper solution.
The block is capable of over 600hp with out crazy porting, machining, and parts/labor needed to get those numbers out of the 3.5. As well it already has the fuel return built in to the injecter rails.
I have seen the numuros RB'S 2jz'Z and the SR swaps but that isnot addressing the issue of extracting big power out of off the shelf parts. Infact there is a CPU for this engine and I have seen real numbers at 375hp on the stock setup. The turbo runs out at that limit. But for the guys that have a tt set up and are looking to expand their power abilities this would be a very cost effective alternative.
Here is one stuffed into a S chassis. He will be running a standalone on it but I would like to explore the possabilities of using the factory Z harnes and just plugging in a Fcon or a tuned ecu.
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Joined: Sep 2005
Posts: 2,239
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From: So.Cali 626-951
Originally Posted by AznIceRckt
Revision- (Sorry board will not let me edit the older post)
I don't know what I'm talking about now? haha.
First off, please compare the RB20 with a VQ35DE with a turbo kit, piping, intercoolers, and others. The transmission likely should weigh more too. I agree with you that it is still a heavy engine, especially for the displacement. I should have done more research on the exact weight before yapping. Regardless though, you should learn to speak like an adult.. calling something retarded? Grow up.
The iron block's strength will outweigh the downside of the weight, which is on the engine shortblock, nice and low to the ground anyway.
Also, there is the issue of WHERE weight is. Have you ever heard of... center of rotation? Maybe you should pick up a suspension tuning reference book or guide. The inline engine should be able to be mounted lower and closer to the firewall.
And an RB25/26 would "barely" be a good swap? What is your logic for this comment? Please inform me. The only benefit of using a VQ is the cost savings, and possibly reliability (from using an original engine/tranny). Having inexpensive spare engines and trannies all over the States doesn't hurt either. However, the VQ35 has yet to prove itself to be as reliable as an RB engine. RB stands for.. race bred... cheesy, yes. but true. Once a VQ proves itself in a 24-hour enduro, I'll be convinced of it's reliability. And even so, in that situation, the VQ35 will probably never see more then 300-400hp in any homologated racing series. Once the new GT-R motor debutes, it will become the new nissan racing engine, probably eventually powering JGTC Z's, and the new GT-R GT500 car (when it is released... 2010 maybe?).
Keep in mind Nissan canned the RB engines to save money. The VQ motors are utilized in almost all popular Nissan V6 vehicles. This is to save money, plain and simple. The VQ is a good platform for street/race tuning, but in a full race car, there are simply many better powerplants.
--------------
Well, since you ask why someone would want to swap an engine in a new car, or relatively new..
Nearly no JGTC car, including GT500 Z's use the VQ35. Only some GT300 Z's use that motor, and other non Z cars.
The 2JZ is a great powerplant as shown by street supras. On stock cams/pistons/turbo it can output nearly 550bhp. Now, you would assume GT500 dominating supras like au cerumo and esso would use the 2JZ, but they don't (and not for regulations). The supras instead run the 4.3L V8 3zz-fe (think.. lexus ls430).. for reliability and a smoother power-band.
The JGTC skylines never ran RB motors, instead the VG30dett like the gt500 Z's. reason again, in race trim, the VG was shorter, and could be mounted rediculously low, and far back, since modifying the front and rear subframes are not against JGTC rules.
-- So my point of this, is that every person wants a different balance. Some people don't even want balance, or know what that is. I would never drive a car with more then 400whp without large powerful brakes, and downforce. I drive fast, not every does (dyno queen drivers). I drive fast on the track too. I don't know what the purpose of more then 500whp is, especially on the street. While it would be fun blasting off on the freeway and straight roads, I regularly subject my powertrain to 30+ min sessions of sustained high-RPM driving (track sessions).
My goal is to balance the car in terms of power output, weight balance, and reliability. I see the safest way to achieve 400-450whp with the VQ35 for a full track car would be to build the engine, and run only 6-7psi from a supercharger (or 4.3L stroker kit).
And if 1000whp is your goal, why don't you get something that can sustain an output like that for more then a dyno run? like, building a chevy big block with twin turbos. it is called, taking the proven, tested, and tried path. MK4 supra big-horsepower heads like Guilly and Said supposedely have built 1000+whp supras, but most people don't know that they blew numerous engines to get to that point. I'm not going to spend 20 grand experimenting with an unproven engine.
- - I'll spend that 20k getting a proven motor in my car. Yes, swapping an engine is expensive, time-consuming, and difficult. But then again so is blowing an engine because of lack of proper tuning, build concept, or parts. How many VQ35's have been toasted under boost? My logic is to spend large NOW to get a proven engine in, and not worry about reliability, rather then spend less now, build the VQ and boost it, and then continuously spend more and more money over time buying new engine blocks and internals.
I don't know what I'm talking about now? haha.
First off, please compare the RB20 with a VQ35DE with a turbo kit, piping, intercoolers, and others. The transmission likely should weigh more too. I agree with you that it is still a heavy engine, especially for the displacement. I should have done more research on the exact weight before yapping. Regardless though, you should learn to speak like an adult.. calling something retarded? Grow up.
The iron block's strength will outweigh the downside of the weight, which is on the engine shortblock, nice and low to the ground anyway.
Also, there is the issue of WHERE weight is. Have you ever heard of... center of rotation? Maybe you should pick up a suspension tuning reference book or guide. The inline engine should be able to be mounted lower and closer to the firewall.
And an RB25/26 would "barely" be a good swap? What is your logic for this comment? Please inform me. The only benefit of using a VQ is the cost savings, and possibly reliability (from using an original engine/tranny). Having inexpensive spare engines and trannies all over the States doesn't hurt either. However, the VQ35 has yet to prove itself to be as reliable as an RB engine. RB stands for.. race bred... cheesy, yes. but true. Once a VQ proves itself in a 24-hour enduro, I'll be convinced of it's reliability. And even so, in that situation, the VQ35 will probably never see more then 300-400hp in any homologated racing series. Once the new GT-R motor debutes, it will become the new nissan racing engine, probably eventually powering JGTC Z's, and the new GT-R GT500 car (when it is released... 2010 maybe?).
Keep in mind Nissan canned the RB engines to save money. The VQ motors are utilized in almost all popular Nissan V6 vehicles. This is to save money, plain and simple. The VQ is a good platform for street/race tuning, but in a full race car, there are simply many better powerplants.
--------------
Well, since you ask why someone would want to swap an engine in a new car, or relatively new..
Nearly no JGTC car, including GT500 Z's use the VQ35. Only some GT300 Z's use that motor, and other non Z cars.
The 2JZ is a great powerplant as shown by street supras. On stock cams/pistons/turbo it can output nearly 550bhp. Now, you would assume GT500 dominating supras like au cerumo and esso would use the 2JZ, but they don't (and not for regulations). The supras instead run the 4.3L V8 3zz-fe (think.. lexus ls430).. for reliability and a smoother power-band.
The JGTC skylines never ran RB motors, instead the VG30dett like the gt500 Z's. reason again, in race trim, the VG was shorter, and could be mounted rediculously low, and far back, since modifying the front and rear subframes are not against JGTC rules.
-- So my point of this, is that every person wants a different balance. Some people don't even want balance, or know what that is. I would never drive a car with more then 400whp without large powerful brakes, and downforce. I drive fast, not every does (dyno queen drivers). I drive fast on the track too. I don't know what the purpose of more then 500whp is, especially on the street. While it would be fun blasting off on the freeway and straight roads, I regularly subject my powertrain to 30+ min sessions of sustained high-RPM driving (track sessions).
My goal is to balance the car in terms of power output, weight balance, and reliability. I see the safest way to achieve 400-450whp with the VQ35 for a full track car would be to build the engine, and run only 6-7psi from a supercharger (or 4.3L stroker kit).
And if 1000whp is your goal, why don't you get something that can sustain an output like that for more then a dyno run? like, building a chevy big block with twin turbos. it is called, taking the proven, tested, and tried path. MK4 supra big-horsepower heads like Guilly and Said supposedely have built 1000+whp supras, but most people don't know that they blew numerous engines to get to that point. I'm not going to spend 20 grand experimenting with an unproven engine.
- - I'll spend that 20k getting a proven motor in my car. Yes, swapping an engine is expensive, time-consuming, and difficult. But then again so is blowing an engine because of lack of proper tuning, build concept, or parts. How many VQ35's have been toasted under boost? My logic is to spend large NOW to get a proven engine in, and not worry about reliability, rather then spend less now, build the VQ and boost it, and then continuously spend more and more money over time buying new engine blocks and internals.
Once the new GTR arrives, it will use a TT VQ35 or VQ38. The car will make 450-500hp so when its used in JGTC, it show the VQ can last enduro races. And Nissan did use the RB26 in racing but they replaced the block with the A1 block(I believe).
Originally Posted by RedBeauty84ZX
Hey guyz dont post on here often but have been on other Z forums for about 5 years now. First off the VG in the Frontier is NOT the same thats in the 90-96 300ZX(Z32) as this is the VG30DE(TT), the engine in the frontier is a slightly updated version of the VG30E from the 84-89 300ZX(Z31). And I wouldnt be so quick to consider the VG30DETT a "downgrade" as it has proven a much more potent motor then the VQ.
Will
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