Hows everyone doing its been a very long time since i been on the forums. I just got through reading the thread on potential of the greddy 20g TT Kit. I was hoping to have had seen some 800whp Z's running the greddy 20g kit. I am planning on redoing my build and ditching the 20g's and going to the 25g's myself cause i want 800-1000 whp myself. But for the build im currently on it goes something like.

Heads:
+1 valves
port and polished
BC valve springs and retainers
BC 264 cams
ARP Head studs

Block:
Punched .20
Wiseco Pistons
Eagle rods
ARP main studs
Stock sleeves
Cometic head gasket

Supporting mods:
Cosworth intake plenum
CJM fuel system
CJM twin pump
Deatchsworks 850cc injectors
ATS carbonetics twin disc clutch
ATS carbonetics Diff
DSS 500hp upgraded axles
Haltech EMS
Blitz SBC i Colour type R boost controler
Defi guages and HUD unit
Koyo Radiator
Innovative motorsports LC1 duo Widebands &Guage
Greddy TIC turbo exhaust
Greddy twin 20g turbo Kit

Suspension:
Greddy front strut bar
Ksport Basic coil overs
SPL rear lower control arm
SPL rear radius arm
SPL rear traction bar

If i missed something im sorry

The car was ment to be a sleeper but having been having issues with heating in traffic on a hot day in texas so i will be getting reliability mods like Vented hood and coating the turbo manifolds and turbos and DP's. to control the heat under the hood bit better.

I have already went through 6 coil packs and that sucked but it what you get when you start going for big power. and i am having some issues with the stock ecm throwing code for to much timing on cams which will be getting tuner to take a look at it while im back at work.

I am currently looking at going to the GTM 4.0 stroker short block and throwing in some 25g's with the 10cm^2 or 14cm^2 with some 1300cc injecotrs and triple disc clutch this time. only because it should yield the 800whp minimum and near the 1k i would like. But i will try to max out the 20g's first i guess to get some full numbers on them before putting on the custom tubular manifolds i will be getting made for the 25g's at the moment im still researching what else i will be having custom made like the intercooler to jump out of the 20g turbo completely.

here are some dyno sheets of what it made at 19psi and few vids. The car was tuned in austin at tunning concepts. he stopped since im still using stock sleeves and he feels that the twin disc clutch is slipping at top end. Car was tuned with 109 octane. He is sure that there is alot more in it just didnt want to push it.

I had went to IFO in houston back in january and at their dyno competition i ran full boost of 21 PSI for a 679WHP and 681WTQ i was running a mix of 50/50 93pump with Q16 i dont have dyno sheet for this event on my computer.

the Time slip was my best so far with little seat time and shitty to no track prep on 285 40 Nitto NT555R DR's it should been a whole lot faster just need seat time and some full slicks and a good track.

I would like to get some input if possible for the next set up. i really need to get close to 1k trying to stay twin turbo and trying to avoid going forward facing. I have a friend with a C5 corvette that should be getting tuned soon and he ended up going with a 800-1kwhp build and i don't wanna be left behind :P He is sticking to the good ole texas motto go big or go home guess i have to join him now too.

Thanks
Carlos

671whp 533TQ @ 19psi 109 octane
11.8 @ 126.7 with a 2.0 60'

http://www.youtube.com/watch?v=YSUKykuhZCA
http://www.youtube.com/watch?v=N-T1SQkVHOw

 

Pics are too big.

Eagle rods for 800+whp build is a no go.

You the same dude from PR who had the N20 G35??

 

Sorry on the size its what i had uploaded to my cloud thing. If you resize or edit the post feel free. not sure how to redo it.

Nah always had the 350z. took 2 years to get my car built i drove it for the first time in january. this set up was to break ice on stock sleeves for me was going for 700 on this set up. but need to go bigger now build has less than 6000 miles on it. Its a DD full interior. I drive it to the track and back no trailer.

 

I don't really see where or why are going with this build. Is it a dyno queen you want? Don't get me wrong i love that you are thinking outside the box, but it seems to me you are just throwing a bunch of **** together. I would try to maximize your current setup first. I would try installing a larger set of cams, new intake manifold (ie SFR or CJM), up the redline, and turn the boost up a bit (check the compressor map of your specific turbo to see the efficiency). Just a few things to think about before going nuts and spending a bunch of un-needed money.

 

BTW that is some really low TQ, especially on race gas and 20G's.

 

I dont do dyno queens. there are a few friends that are pushing the 700+ whp and i'm trying to be in the middle of the group. for me to maximize this set up i need to change out the block or install sleeves. Easier to sell this one or transplant it into my M35 and buy the 4.0 stroker. the cams will be going up to 272 once the motor gets torn apart for the new block. the 264 aren't bad they make for a good curve its not peaky. The cosworth intake plenum has been used in a 1011 whp 350z no need to change it out. Might be better designed ones but I already have this one and it works.

im woried about sizing and the application being done in the Z with the 20g's to hit the 800+ thats all. maybe someone could point me to a thread that has 800+ to see what the last few things i would need to pick up.

 

yea ive seen more TQ from other builds. this is just how mine ended up right now. ive compared that dyno to other similar builds and i do make a considerable amount less TQ.

 

you have a lot left in your current setup. Your stock sleeves are fine. A new tuner would easily net you 800+whp on those 20Gs. This is on 18Gs http://www.pfsupercars.com/projects/

GamermodZ also did 1013 on his 20Gs as well. His build is in the shop build thread

But of course, its your money so if what you suggest is an option, go with that for sure, without a doubt!!!!

 

what is the current hp/tq limits on stock sleeves? could you point me in a direction to read up?

 

For the record...This car is on a very limited, basic build and had 10K+ miles on it over 1 year ago. No sleeves.

This was with N20 on top of a basic 18G Greddy kit, stock intake, race gas, BC2 cams.

edit-Op you can always maximize the set-up more. Here is my 18G dyno, 93 octane + meth, 17.7psi. 20psi these little snails are pretty maxed power wise on the timing we can run with meth.

 

So pretty much as it stands the tuner can pull out more power on my sleeves. and having sleeve issue isnt until 800+. which was the main reason i was going to go to the 4.0 stroker cause he was worried about sleeves at 700whp.

 

Guess I will have to ship car away to get tuned. Thanks alberto and str8dum this is the kind of info i was looking for. When i had reserched the build long time ago 2 years i was always sure it should have been able to hit 800whp. but then when reality set and i saw numbers there was something not right for some reason. was no where near what i had come up with. Ill have to see into shipping car after i get all the manifold, turbo, and DP's coated later this month.

 

My car at 20psi makes 688ft/lbs on pump/meth. You have much more to go before I think you should spend more money on more setup.

 

Alberto,
I just happened upon your youtube videos yesterday when looking up stuff on my Z. Super random to find you the day after I watched your videos haha
But damn, your car is ridiculous haha

 

Thank you sir

 

the car on the stock sleeves and 800whp is making me think how conservative my tune maybe or if im missing something. Ill have to talk with some tuners and see if they could take a crack at the car in a few months. maybe even talk to that PFSupercars see if they would be willing to give it a shot if they have time. Thanks for that info it was very helpful. I have to get to bed its almost midnight here in afghan.

 

gamermodz has 20gs with a modified housing and made upper 900's on them didnt he?

 

i was pushing 900DD on stock sleeves. rods went loose before the sleeves did. didnt sleeve on the rebuild either...

 

wish i had know that when debating to do sleeves or not XD

 

with the size stroker you have, you'd want sleeves no doubt. no way what i stated should affected that decision.