700rwhp turbo kit (single or twins and what mods)
10-27-2012, 04:59 PM
#21
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For example an GT47-80 on a 4cyl 2.0 is capable of 1100-1150rwhp yet on a LS motor (using this displacement for example) you need a GT55-91 to be in the 1000-1100rwhp range. BIG difference in compressor needed but im using a larger difference in displacement just for illustration.
Moving to the 3.0 and 3.5.
If the power outputs are similar how many stock 350Z motors do you see BONE STOCK running 30-35psi with intake/exhaust/single setup only. My little knowlege of these motors would say very very little. Yet lots of supras run that all day long. I bet the power outputs with intake/exhaust mods are far different. The motors are so different that you cant even compare.
Thats why im coming in here with a clean slate and open mind. I know what turbos are rated for and how much they can produce but ever platform is different.
Jerryd87 looks like I struck a nerve with the 2J vs Z comparison...I guess thats a big comparison on here. Not my intension to preach which is better. Just to understand the Z setup more. I appreciate the informative post you made before. Oh and a 6766 on a 2J has done 950rwhp with an 81a/r housing.
Last edited by spoolin turbo; 10-27-2012 at 05:07 PM.
10-27-2012, 06:06 PM
#22
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You are comparing something with forged internals to something without which has NOTHING to do with displacement. That is the only reason why stock block supra engine will hold more power than vq. Not because of their displacement.
I've built plenty of motors to know what I'm talking about. The differences between a 3 liter and 3.5 liter with the same turbo are going to be minor. If you don't believe me then you obviously haven't spent much time looking over setups. I'm not talking about supporting mods so don't think "ya got me". You glazed over the statement I made about supporting mods. I'm talking strictly displacement. A properly designed 3.0L verses properly designed 3.5 liter setup will yield very similar results. Smaller displacement might come out a little higher on HP but the larger displacement will come out with more tq in the midrange. With only .5L difference the differences aren't large enough to worry about when just trying to decide on turbo size.
If they were "so different you can't even compare" then I wonder why a lot of shops that tune vq engines also do 2jz......
The fact that you don't think a single turbo setup is going to produce as much power as twins says you haven't even spent time reading about these setups let alone actually building them and tuning them.
I've built plenty of motors to know what I'm talking about. The differences between a 3 liter and 3.5 liter with the same turbo are going to be minor. If you don't believe me then you obviously haven't spent much time looking over setups. I'm not talking about supporting mods so don't think "ya got me". You glazed over the statement I made about supporting mods. I'm talking strictly displacement. A properly designed 3.0L verses properly designed 3.5 liter setup will yield very similar results. Smaller displacement might come out a little higher on HP but the larger displacement will come out with more tq in the midrange. With only .5L difference the differences aren't large enough to worry about when just trying to decide on turbo size.
If they were "so different you can't even compare" then I wonder why a lot of shops that tune vq engines also do 2jz......
The fact that you don't think a single turbo setup is going to produce as much power as twins says you haven't even spent time reading about these setups let alone actually building them and tuning them.
10-27-2012, 06:57 PM
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You are comparing something with forged internals to something without which has NOTHING to do with displacement. That is the only reason why stock block supra engine will hold more power than vq. Not because of their displacement.
I've built plenty of motors to know what I'm talking about. The differences between a 3 liter and 3.5 liter with the same turbo are going to be minor. If you don't believe me then you obviously haven't spent much time looking over setups. I'm not talking about supporting mods so don't think "ya got me". You glazed over the statement I made about supporting mods. I'm talking strictly displacement. A properly designed 3.0L verses properly designed 3.5 liter setup will yield very similar results. Smaller displacement might come out a little higher on HP but the larger displacement will come out with more tq in the midrange. With only .5L difference the differences aren't large enough to worry about when just trying to decide on turbo size.
If they were "so different you can't even compare" then I wonder why a lot of shops that tune vq engines also do 2jz......
The fact that you don't think a single turbo setup is going to produce as much power as twins says you haven't even spent time reading about these setups let alone actually building them and tuning them.
I've built plenty of motors to know what I'm talking about. The differences between a 3 liter and 3.5 liter with the same turbo are going to be minor. If you don't believe me then you obviously haven't spent much time looking over setups. I'm not talking about supporting mods so don't think "ya got me". You glazed over the statement I made about supporting mods. I'm talking strictly displacement. A properly designed 3.0L verses properly designed 3.5 liter setup will yield very similar results. Smaller displacement might come out a little higher on HP but the larger displacement will come out with more tq in the midrange. With only .5L difference the differences aren't large enough to worry about when just trying to decide on turbo size.
If they were "so different you can't even compare" then I wonder why a lot of shops that tune vq engines also do 2jz......
The fact that you don't think a single turbo setup is going to produce as much power as twins says you haven't even spent time reading about these setups let alone actually building them and tuning them.
I never said twins would not make as much power as a single. Not sure where you read that.
Shops will tune VQ/2J/B-series/LS motors....whatever pays the bills. If you know what you are doing you can properly tune different motors. Why limit yourself.
I never said I was a tuner and no I dont build motors. Forgive me for not having this expert knowledge like you but I do think I stated from the beginning I was green to the Z motor. Please share your wisdom with me on what is needed for 700rwhp. Thats all im asking for, not here to argue with anyone, just learn more about this platform...thats it.
Last edited by spoolin turbo; 10-27-2012 at 07:05 PM.
10-28-2012, 05:24 PM
#24
you have to build the motor for boost, the 2jz was built for boost from the factory with forged internals......... the vq was built to be a na engine with crap rods............. the block will take it just fine its questionable if the block needs sleeves before 800 and it seems the general consensus now is no it dosnt. with sleeves the vq built by reputable shops has held more then enough power, think vtr's shop car was what around 1600 to the wheels? granted it was a tube chassis.
for tuning sure they will tune anything but shops have specialty's, places that specialize in the vq also tend to specialize in the 2jz. at the absolute most the 2jz will make 50 hp more, and thats doubtful. going from a 2L to a 3L(evo to 2jz) the precision turbos show about 100 whp less on the bigger engine, and most of that is from how high they spin the engine. 2jz and vq35 run in similar rev ranges so yes the power difference is minimal and you can have a very good idea. it half a liter not triple the displacement like your comparison, we are comparing granny smith apples to red delicious apples your comparing grapes to bowling *****.
the only thing you will continue to get is flamed since all the information is readily available. no one is going to help you
for tuning sure they will tune anything but shops have specialty's, places that specialize in the vq also tend to specialize in the 2jz. at the absolute most the 2jz will make 50 hp more, and thats doubtful. going from a 2L to a 3L(evo to 2jz) the precision turbos show about 100 whp less on the bigger engine, and most of that is from how high they spin the engine. 2jz and vq35 run in similar rev ranges so yes the power difference is minimal and you can have a very good idea. it half a liter not triple the displacement like your comparison, we are comparing granny smith apples to red delicious apples your comparing grapes to bowling *****.
the only thing you will continue to get is flamed since all the information is readily available. no one is going to help you
I was comparing the stock 3.0L vs the stock 3.5L. I understand AUC, but if the block cant take it then it cant. I took your statement as supporting mods as bpu upgrades. Now your defending by building a stronger Z motor. If I had known you were going into building the motor then I would not have made that comment.
I never said twins would not make as much power as a single. Not sure where you read that.
Shops will tune VQ/2J/B-series/LS motors....whatever pays the bills. If you know what you are doing you can properly tune different motors. Why limit yourself.
I never said I was a tuner and no I dont build motors. Forgive me for not having this expert knowledge like you but I do think I stated from the beginning I was green to the Z motor. Please share your wisdom with me on what is needed for 700rwhp. Thats all im asking for, not here to argue with anyone, just learn more about this platform...thats it.
I never said twins would not make as much power as a single. Not sure where you read that.
Shops will tune VQ/2J/B-series/LS motors....whatever pays the bills. If you know what you are doing you can properly tune different motors. Why limit yourself.
I never said I was a tuner and no I dont build motors. Forgive me for not having this expert knowledge like you but I do think I stated from the beginning I was green to the Z motor. Please share your wisdom with me on what is needed for 700rwhp. Thats all im asking for, not here to argue with anyone, just learn more about this platform...thats it.
10-29-2012, 07:27 PM
#26
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The reason most stay under 650 is that most cars are street cars. Go on the supra forums and you will find most are below 650. There just is no need for a pure street vehicle to push for more hp so people don't. I personally choose to run mine on the 607hp dyno map over my 652 map because of traction. After 600 it's just a waste on the street with limited traction.
10-30-2012, 03:56 AM
#27
everyone's going soft. what is it, the holidays coming up or something?
I came into this thread hoping for something good... and im disappointed:
PS:
OP don't believe everything you read on the supra forums. SP for example has a dyno that reads much higher than others... That's with all respect to the SP guys, they have a great shop and have great products, and are really knowledgeable.
And nobody knows what the limit is of a 67 on a vq. Binder has gone the furthest out of everyone on a 67mm, and he is on low level boost. Beyond that, most of the records set for 67/71/75/62 etc turbos are on 3.4l built/cammed motors. Our heads drastically out flow 2j's. A mild cam 2j flows roughly equivalent to a stock cam/stock port/stock valve PAIR of vq heads.
EDIT:
youre a ****.
I came into this thread hoping for something good... and im disappointed:
PS:
OP don't believe everything you read on the supra forums. SP for example has a dyno that reads much higher than others... That's with all respect to the SP guys, they have a great shop and have great products, and are really knowledgeable.
And nobody knows what the limit is of a 67 on a vq. Binder has gone the furthest out of everyone on a 67mm, and he is on low level boost. Beyond that, most of the records set for 67/71/75/62 etc turbos are on 3.4l built/cammed motors. Our heads drastically out flow 2j's. A mild cam 2j flows roughly equivalent to a stock cam/stock port/stock valve PAIR of vq heads.
EDIT:
youre a ****.
Last edited by Resmarted; 10-30-2012 at 04:06 AM.
10-30-2012, 08:08 PM
#28
think we are all just tired and bored of picking on noobs lol, plus you have epic spiderman pics lol
everyone's going soft. what is it, the holidays coming up or something?
I came into this thread hoping for something good... and im disappointed:
PS:
OP don't believe everything you read on the supra forums. SP for example has a dyno that reads much higher than others... That's with all respect to the SP guys, they have a great shop and have great products, and are really knowledgeable.
And nobody knows what the limit is of a 67 on a vq. Binder has gone the furthest out of everyone on a 67mm, and he is on low level boost. Beyond that, most of the records set for 67/71/75/62 etc turbos are on 3.4l built/cammed motors. Our heads drastically out flow 2j's. A mild cam 2j flows roughly equivalent to a stock cam/stock port/stock valve PAIR of vq heads.
EDIT:
youre a ****.
I came into this thread hoping for something good... and im disappointed:
PS:
OP don't believe everything you read on the supra forums. SP for example has a dyno that reads much higher than others... That's with all respect to the SP guys, they have a great shop and have great products, and are really knowledgeable.
And nobody knows what the limit is of a 67 on a vq. Binder has gone the furthest out of everyone on a 67mm, and he is on low level boost. Beyond that, most of the records set for 67/71/75/62 etc turbos are on 3.4l built/cammed motors. Our heads drastically out flow 2j's. A mild cam 2j flows roughly equivalent to a stock cam/stock port/stock valve PAIR of vq heads.
EDIT:
youre a ****.
