hi guys

i did a search and found out that the greddy kit on the VQ engine can put down to the wheels around 580 - 620whp and around 16-18 psi

my Q is:
if we put a larger intercooler, can we go 23 -24 psi with the TD05 18G and get more hp ?

or is it better upgrading to 20G ??

my target is 680-700whp

any help so i can start my project

thanks

 

Greddy 18G's usually start to run hot I believe around 21 psi. So turning the boost up that high is not efficent. Im sure on 20G's you will make that power of course you will also gain lag

 

People have made 700whp on 18g's. But at that boost/power level they wont last long. I doubt the IC is a bottleneck even with 20g's its so damn big. You only see 1/2 of it through a Z's stock front end.

+1 on rome as well

 

thanks for the fast replay

i was traing to find any dyno graph for a 20G upgrade so i can know how dose the curv looks like.

i really like the TD05 graphs on the 350z.

 

Also keep in mind that you can run those Greddy's at around 16-17psi, make 600whp EASY and then do a shot of n20 on top. I know one crazy man in particular who did that maxing out the 18g's and did 860whp....but I dont know if your goals are all turbo or not.

 

going with a larger intercooler, will reduce pressure. you should look at the compressor maps to and see how efficent the turbos are at your desired PSI

 

cams, meth, stroker?

 

Alberto its really nice to chat with u here i saw ur last 1/4 mile video man ur car can go 10s with the same boost

and thanks for the replay

 

Oh I know The car now makes 581whp @ 13psi, it took 15psi before. It was at 525whp in the video.

Good luck! PM me if you want more info.

 

damn man i wish that we can have meth here in kuwait its gonna be more easy to tune and get to the target

but we have a high oct fuel

 

if u have the compressor map plz send it to me !!!

do u have any info about the CFM for the TD05 18G ?

 

after ur video, i did upgrade my final drive to 3.3 allready

 

Amazing power levels - congrats.

I asked Sharif to ask you about throwing one of the experimental plenums he has sitting around on there. Did he ask you about trying that? I'd recommend the non-revup w/ your crawford. There's no moving parts so no danger with those. It will suck more air during idle (vacuum) and boost more air through the PCV valve (if you let it), so you need to put an additional check valve - but otherwise should be good to try... (I assume no risk - Sharif does! )

 

He has not asked me, nor do I have interest in testing anything. After plunging into buying a sleeved motor only to hear its not needed/recommended later, I'll let others be Guinea pigs for once.

 

I have been the guinea pig a few times and no longer do i have the interest in doing so!! Let others take the fall lol

 

 

So have we, and I love it If nobody tried anything new, the community would never move forward.

 

oh i agree hal, i just don't have the excess funds or time to be in that position anymore . I do like the challenge of trying to venture into grey areas though.

 

I have been a guinea pig for several things as alberto and chris have posted. I hope we have answered the OPs question.

 

search user Jkenefic. I believe I spelled his name correctly. He as 20G's also user Bam Bam has 20G's too. Myself Alberto Jamez and alot others are still on 18G's