My brothers car got a retune

[04GTMustang]

took my brothers car in yesterday to get it retuned with a 12psi pulley. it made 507rwhp and 448rwtq. the gt 40 fuel pump is running out now up top. after 5500 its starting to lean out to 12.8. the dyno tuner said to get a boost a pump and it will be fine.

man these 3vs can make some dang good power.

oh its an 07 GT with a procharger and a catback thats it

 

[SaleenGT2001]

nice. 3v's LOVE boost!!!


on a side note. you NEED to data log the fuel pump duty cycle when the car is warmed up and running on the street. my GT pumps were fine on the dyno but once they got hot they were pegging on the street tune at 5200 rpm. the drop on the GT pumps is fairly high (close to 20% according to Fore Percision) if you dont have a wideband on the car just BE CAREFUL!!

 

[BurningRubber]

12.8 will burn those pistons up pretty quick under boost if he gets into it before the problem is fixed.

Bad ass numbers, especially for just a blower, catback, and tune!!!

I hate to say it, but it sounds like the engine is a time bomb at this moment. 500rwhp is past the 3v stock bottom end limit in the first place, plus he is lean.

I hope it lasts... Hell, if he has any of the luck you have with your motor it'll run forever under abuse, lol.

 

[DBMSTNG]

our cars should be able to hit those numbers with the new trickflow heads and maybe a mild cam. must... resist... urge...

 

[04GTMustang]

it should be fine cause its only going to 12.8 arf after 5500. but its 11.4 before that. the fuel pressure drops about 8psi pretty quick too. but yea those numbers are pretty sweet. my kenne bell feels way more fun though cause it kicks a lot harder.

 

[02nightmaregt]

Roots FTW. Those are some gnarly #'s though. I personally love the s197, but i'll always LOVE my NEW EDGE

 

[DBMSTNG]

Roots FTW. Those are some gnarly #'s though. I personally love the s197, but i'll always LOVE my NEW EDGE

Kenne Bell is a twin screw, not a roots.

 

[02nightmaregt]

Yea my bad

 

[04GTMustang]

its alright your for given. everyone makes mistakes

 

[bhuff30]

That's why I always say positive displacement. Then, it doesn't matter what brand it is, long as it isn't a centrifigual.

Kenne Bell is a twin screw, not a roots.

 

[crzyhrse99]

So whos faster

 

[lvmustanggt]

Video and

 

[Gearbanger 101]

its alright your for given. everyone makes mistakes

You mean like spelling mistakes?

 

[CobraRed_96_GT]

Is that on stock internals?

 

[04GTMustang]

You mean like spelling mistakes?

like i said forgiven for mistakes hahahahah

yep stock internals

and we will figure out who is faster probably after winter. Im not hooking from a 2nd gear punch hahah way too cold

 

[hotmustang331]

Wow those are some darn good #s. That thing should move out pretty nice!

 

[02nightmaregt]

its alright your for given. everyone makes mistakes

Yea it's been a long week, I had a test Friday so my thought process was shot. Yea positive displacement would have been a better phrase to use

 

[04GTMustang]

Wow those are some darn good #s. That thing should move out pretty nice!

yea those 3vs are impressive. but the tuner said he did one 3v and it blew up on 400rwhp and then my brothers has been going for a while on 471rwhp with 10psi and now 507. im thinking it all depends on when your car was built during the week lol. near pay day they might be throwing cobra internals in your car cause the workers are happy lol. mine is the same was lasting through all that nitrous and now a kenne bell.

the 4.6s are stronger than most think. but then again its all in the tune and now radical your timing is.