GT28 s4 backyard build
 

starting my build i already started taking apart the car

im going to try an do the 3L with 2.8 heads
depending on money but will atleast be doing
stock bore built bottem end and 2.8 heads
280 cams supertech valvetrain mechanical, P&P,
no y pipe or MAF, RS4 intake, twin GT28 turbos
unorthodox pulleys possibly underdriven
gates timing belt
Vast intake mani spacers
3inch DP's into a single 4 inch exhaust,
tial 44mm external wastgates,
turbo headers,'
034 fuel rail an lines kit
034 steel turbo line kit
034 full standalone kit with DBC tb
8:5:1 compression possibly even lower with Comp dropping head gaskets
Custom 3inch thick front mount
water/meth injection
4lb racing battery
30hp shot of nitrous at the turbos

shooting for 600whp on PUMP will have a 93oct tune on the standalone and a 110oct or C16 tune both with water meth
if i go with stock bore built bottem end i will try an build the car to rev till 9K

I WILL KEEP Y'ALL POSTED

wow....this sounds awesome. what exhaust manifolds are you gonna run? are the unorthodox pulleys balanced or are they like the ecs ones?

Good luck!

sound like an interesting/awesome build. All I ask is that as you go, pics, pics, pics, please.

why are u spraying n2o at the turbos and not the manifold?
I'm gonna get a gt28 s4 with a 100 shot on the dyno soon i hope... I'll let u know how it turns out... 2.7 with rods. should be interesting.

im gunna run the ARD mani's or ask wicked where they got those sick headers
an also the unorthodox pulleys i think are balanced i was going to try an get UD pulleys debating whether its a bad idea or not I WILL POST PICS soon i just started taking the car apart i really wish i had dough to go 3L ha
an as for a small shot at the turbos im just paranoid to blow the motor ur crazy for doin it with just rods runnin gt28's with just rods is insanity i might try a 100 shot if i can sleeve the block an shit WILL BE POSTING PICS

an im buildin this shit in my boys backyard im not payin a shop doing everything ourselves from hand dont even have a lift

I'll also be doing a tranny swap an stage 4 southbend clutch an LWFW
an replacing every single mount on the car an a rear big brake kit

Not my car, a buddy of mine. why do you think it's crazy only doing rods? we're not reving to 8krpms or anything... what do you think will break? We may see 650 to 700 whp on N2O.
I know all about backyard builds man, I rebuilt my trans in a 7x7 camping tent that caved in during a snow storm... all my gears and syncros were all laid out. what a mess, lol.

block and pistons on these engines have barely even been pushed at that power level. rods are your main concern when going over 500whp/500wtq with an aggressive torque curve. and a lot of your parts may be/are over-kill for your goals. just my opinion. im on RS6 turbos and getting ready to try for a 50 shot here soon to see what happens. and i agree with jude, just do a wet shot. many guys have had good results using a simple wet shot on their cars.

btw there are tial 770 cars making 600whp on pump.. maybe another option. i say do 2.8 heads/cams, maybe springs to run to 7500. rods on the bottom halve, the rest for fueling/tuning. water meth is good to have, and a 50-100 shot will always be fun. just IMO

changing this a little bit im going to do a custom single set-up with a gt40 or gt42 i can make more power that way 034motorsports gti-rs car makes 1200crank with a gt42rs

i dont think anything i mentioned tho is extreme
im changing to all high performance parts a no expense barred
build and i prefer standalone and everything i mentioned to get the HP out of my car and i wanted to do the 3L for torque

will be putting pics next weekend
started ordering parts

and as far as rods i wouldnt trust running my car or any s4 with 600WHP + with just rods i would do rods an pistons thats just me though

^^ sounds pretty cool, stock pistons are forged Mahle from the factory, so they are extremely tough..