My brothers car got a retune

04GTMustang

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Nov 27, 2008

#1

• Nov 27, 2008

• #1

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

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Jul 18, 2005

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Nov 27, 2008

#2

• Nov 27, 2008

• #2

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

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Dec 6, 2004

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Nov 28, 2008

#3

• Nov 28, 2008

• #3

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

I fantasize about it being BIG!

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#4

• Nov 28, 2008

• #4

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

 

04GTMustang

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#5

• Nov 28, 2008

• #5

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

To hell with your Mustang, I want to see your HOG!

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Nov 29, 2008

#6

• Nov 29, 2008

• #6

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

 

DBMSTNG

I fantasize about it being BIG!

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#7

• Nov 29, 2008

• #7

02nightmaregt said:

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

Click to expand...

Kenne Bell is a twin screw, not a roots.

 

02nightmaregt

To hell with your Mustang, I want to see your HOG!

Jul 1, 2007

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Nov 29, 2008

#8

• Nov 29, 2008

• #8

Yea my bad

 

04GTMustang

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#9

• Nov 29, 2008

• #9

its alright your for given. everyone makes mistakes

 

bhuff30

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Nov 29, 2008

#10

• Nov 29, 2008

• #10

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

DBMSTNG said:

Kenne Bell is a twin screw, not a roots.

Click to expand...

 

crzyhrse99

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Mar 30, 2005

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Nov 29, 2008

#11

• Nov 29, 2008

• #11

So whos faster

 

lvmustanggt

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#12

• Nov 29, 2008

• #12

Video and

 

Gearbanger 101

Straight Outta Locash

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Nov 30, 2008

#13

• Nov 30, 2008

• #13

04GTMustang said:

its alright your for given. everyone makes mistakes

Click to expand...

You mean like spelling mistakes?

 

CobraRed_96_GT

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May 20, 2006

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#14

• Nov 30, 2008

• #14

Is that on stock internals?

 

04GTMustang

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#15

• Nov 30, 2008

• #15

Gearbanger 101 said:

You mean like spelling mistakes?

Click to expand...

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

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Apr 29, 2004

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#16

• Nov 30, 2008

• #16

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

 

02nightmaregt

To hell with your Mustang, I want to see your HOG!

Jul 1, 2007

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Southern Indiana

Nov 30, 2008

#17

• Nov 30, 2008

• #17

04GTMustang said:

its alright your for given. everyone makes mistakes

Click to expand...

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

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#18

• Nov 30, 2008

• #18

hotmustang331 said:

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

Click to expand...

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.