Finally KB 2.8 numbers on stock motor!!

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03mustangcobra

New Member

Mar 21, 2006

52

0

0

Oct 19, 2006

#1

• Oct 19, 2006

• #1

Finally got the KB 2.8 on the car and on the dyno.


685 RWHP/668 RWTQ STD
668 RWHP/652 RWTQ SAE

28lbs boost!! A/F 11.7 or less (race gas)

This was with 3.25" upper and 6lb lower. We will be trying 4" upper on same lower to try to get a better balance of street and race tune in the next few days.

Thanks to Chris, Larry and Torey at Excessive Motorsports for all the hard work!!!


I haven't changed my signature so ignore the mods listed, they have changed!!

 

DoubleONegative

Active Member

Jun 30, 2003

1,528

2

39

Tioga Cty PA

Oct 20, 2006

#2

• Oct 20, 2006

• #2

how much timing??

you really need to add timing to race fuel with it's burn properties

 

U

Uncle Meat

Banned

Jun 13, 2002

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1

0

Prattville, Alabama

Oct 20, 2006

#3

• Oct 20, 2006

• #3

WOW! 28lbs boost on a stock motor. Pretty impressive. Stock exhaust logs or are those numbers with headers?

U.M.

 

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03mustangcobra

New Member

Mar 21, 2006

52

0

0

Oct 20, 2006

#4

• Oct 20, 2006

• #4

Uncle Meat said:

WOW! 28lbs boost on a stock motor. Pretty impressive. Stock exhaust logs or are those numbers with headers?

U.M.

Click to expand...

Hey Meat, I was hoping you'd pick up on this thread.

First thing to all, 28lbs boost is not the way this car will stay, we will be chaning the 3.25 pulley for a 4" pulley and retuning to see what we can do in terms of a reliable street tune with an alternate race tune. I am guessing that we have run up against some other bottleneck, maybe the intercooler cannot support the 2.8's flow at 28lbs boost.

Anyway don't try this at home!! I am thinking that we will get a good solid street tune and an alternate for the track and I am hoping that the track tune is close to these numbers.

 

SVT98Snake

New Member

Apr 15, 2005

258

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0

OK, USA

Oct 20, 2006

#5

• Oct 20, 2006

• #5

holy hell....28 psi. you are on shortly borrowed time....change that quick!!!!!

good numbers!

 

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03mustangcobra

New Member

Mar 21, 2006

52

0

0

Oct 20, 2006

#6

• Oct 20, 2006

• #6

Uncle Meat said:

WOW! 28lbs boost on a stock motor. Pretty impressive. Stock exhaust logs or are those numbers with headers?

U.M.

Click to expand...

Meat, sorry forgot to answer your qestion. MAC LT, H, Flowmaster 3 chamber

 

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03mustangcobra

New Member

Mar 21, 2006

52

0

0

Oct 21, 2006

#7

• Oct 21, 2006

• #7

Wow, finally drove it. I can't imagine anything like this, power is unlike anything I have ever felt. Can't keep traction with 12 degrees of timing spins all the way through 4th gear ( I haven't even gone to 5th under load!!!).

 

SVT32VDOHC

waiting for the next hack atta

Founding Member

Nov 22, 2001

3,501

28

119

Motor City

Nov 7, 2006

#8

• Nov 7, 2006

• #8

28lbs of boost? Is that nesessary?? Of course it is necessary!!! Cool ride man!