hey guys i have question, since my build is almost complete (greddy tt, built shortblock), and im slowly but surely almost out of money, i may not be able to afford a decent exhaust. i dont wanna buy an OKAY exhaust then later on try to sell it for another one. i would prefer to buy it once and be done with. So my question is how much power do you think i can make on the STOCK EXHAUST with a greddy tt, wastegate spring set at 8psi and a built bottom end???? thanks in advance.

 

to answer your question.. 340 - 380 whp

to solve your problem: https://my350z.com/forum/product-ann...st-cutout.html

 

i made 450rwhp through stock y-pipe, mid-pipe and muffler on fresh built motor (SP TT).....but it was uber laggy due to all the back pressure.

just yanking that exhaust cause boost to jump from 11psi to 24+psi at same boost setting....yes that restrictive!!!!!

 

i wouldnt even bother with an exhaust. just use some turn downs. the turbos act as mufflers.

 

I'm running that set-up with the addition of Test pipes. 385 at 9psi on w/g spring.

 

backpressure in a boosted car = added heat in the cylinder = detonation = having to tune for way less power to avoid said detonation.

 

Stylin Z has this done with APS extreme kit.....its still LOUD.

tom

 

of course its still loud but it makes power!

 

werd!

that probably the best way to keep sleeper look, keep sound low.....until 'full" boost kicks! :eek;

 

if i took off the the exhaust from the cats to the muffler, would i be able to hit over 400whp and will it sound STUPID LOUD????

 

Yes, it will be loud - and I am not sure what you are doing for engine management but you will need to go over the tune again when you make a huge change such as stock exhaust to something free flowing.

 

stop hacking your car to make power.. make decent power until you can afford to purchase the proper means to hit your goal

 

im running the Turbo xs Utec