I got a D16Z6 that has crower spring and retainer, zex cam, skunk2 cam gear, performance x intake manifold, tuner toy rods,and vitara pistons.

I have 3 different turbos on my mind. Keep in mind this is my dads car and will some what bedaily driven. Looking for around 325-350 on pump gas and then maybe 400+ on pump and 100% meth. He wants to go with a top mount manifold.

Turbo options:
T3/TO4E 57 trim I have now
GT2876R
GT3076R

I was think that if we went with the 30R to go T3 twin scroll. I don't know if that will be a good idea or not. Just thought it would be good for 500whp if he every wants to sleeve and fully build it later on. He wants a usable power band.

Whats the bros and cons of each? Also post up your numbers. Thanks alot

Chris

 

tht 57 should be enough for him.

 

be realistic with your goals. a holset HX35 or HX40/35 with a 9cm^2 turbine housing would be nice for 300whp and higher (400 depending on YOUR set-up, personal experiences have yielded 500whp on a HX40/35 with a lot more left in it.)

 

From what I understand the comp. ratio with the vitaras in the Z6 is only 8.5

 

umm no unless you have FJT custom length rods the CR is 7:1

 

correct sir. also id personally get a 50 trim instead of a 57, better spool time and still capable to support 350hp. Also ditch that skunk2 cam and go with a zex 59300

 

It does have the zex cam. If the comp is that low then why the hell does all the compression calc. show 8:5:1

 

because its WRONG!!! do the math by hand youself and you will see its wrong. also which comp calc are you using and does it account for rod length ?

 

I used 2 different ones. And I put in the stock rod lenght. One said 8:50 and the other was 8:83. So I take it this motor is going to feel like a damn slug out of boost.

 

just add some timming and keep an eye on AFR's and EGT's

 

What do you think of the 3067 twin scroll idea

 

what size A/R are you planning on personally i would rather use a BW S258 T3 .70a/r i think the .55a/r on a D-series would be cream

 

I was going to use the 3076 .63 a/r. I want room to grow in case we ever sleeve a motor.

 

just did the zeal calculator and it says 7:67:1

 

i would go for the gt30...ball bearing....good for 500whp which i dont think you will exceed...and the 57 trim will feel quite laggy

 

With the comp that low anything is going to feel laggy. I'm just worried about the out of boost driving

 

take a look at the BW S258 with a T3 .70a/r or .55a/r
also you will need to add timming with 7:1CR inorder to give the car a little more grunt, it doesnt has to be a slug but it wont be like 10:1 either. if your so worried just buy a set of FJT custom length rod and bump your CR to 8.5:1 or mill the deck and head a bit you have options.

 

its fine. i drive a 87 toyota as a daily driver (22r) and when i jump into my crx it feels like a v6 in comparison. its a light car. youll manage.

 

If I was to put the FJT rods in it and a 2 later y8 head gasket it would bump me up to 8:8:1. But the rods are on back order now. Between the block and head its already been milled 0.015

 

After talking to my tuner it looks like I'm going with a S256 .55ar I have a S256 .63ar on my srt4 and I love it

 

good choice you WONT REGRET it, its a sweet turbo.

 

Thanks for all the input bro, Were going to run the motor with the 7:67:1 comp for now and then build another motor later on.

 

sounds good keep on with the updates and build

 

I just talked to go-autowerks and he told me I should run the .73 ar. Also everyone is telling me not to get a top mount.

 

top = pooh