331 Horsepower Capability

JBIGBOOTSY · July 25th, 2009, 11:48 PM

Originally Posted by 1slo5.0

Mexican block and 9.80s. I believe it is just over 12:1.

Thats less of a ratio than I was expecting. Badass motor, badass chasis, and a badass driver, I'm assuming.

They should have an all out stock shortblock class, any power adder, 10.5, no boss, or 351...

I think that would be cool, it would prolly put the tracks cleanup crew at work alot more tho.

Mean 5.0 · July 26th, 2009, 09:17 AM

Originally Posted by JBIGBOOTSY

What compression ratio? I'm assuming its an older block or an aftermarket block?

Compression Ratio im not 100% sure on, the guy i bought the car from said it was something like 10.5:1 or 11:1 some where in that area...it is a CHP shortblock, nothing too fancy, just a 2 bolt main with a girdle...but im gathering the AFR's are known as garbage around here...

Mean 5.0 · July 26th, 2009, 09:19 AM

After reading more...i realized that question was not directed at me...shutting up...

WildWill · July 26th, 2009, 05:49 PM

Don't buy that Comp Cam. If you are truly disappointed with your combo, you need to just start by completely re-doing your top end. Bigger heads for starters... I think the AFR 205's would be a good choice, but that's just my opinion. The biggest trick flow heads you can find would be even better... As far as an intake goes... look into the Eddy Performer RPM II... they have great flow numbers and I have a friend with a 347 in his 95 who switched to an RPM II from his track heat intake and picked up around 20 rwhp. Please don't put another off-the-shelf cam in there. AFTER you get the heads and intake that you want (you could port/polish them to match too...) then call up Jay Allen at Camshaft Innovations and have him custom grind you a cam that is specific to your combo. Guaranteed you will be surprised at how much power you make. Good luck man...

txbkr · July 26th, 2009, 07:05 PM

A Holley Systemax added 42rwhp to my set up. Additionally, it added 38rwhp to my friend's and he has an "F" cam. I have a Comp Cams XE266HR. Both are 331 C.I. with AFR 185's, full exhaust, 3.73, etc and both run low 12's granny shifting on drag radials.

Hope it helps.

flattusmaximus78 · July 26th, 2009, 10:10 PM

Originally Posted by txbkr

A Holley Systemax added 42rwhp to my set up. Additionally, it added 38rwhp to my friend's and he has an "F" cam. I have a Comp Cams XE266HR. Both are 331 C.I. with AFR 185's, full exhaust, 3.73, etc and both run low 12's granny shifting on drag radials.

Hope it helps.

Thats pretty bad, and no, not bad in a good way.

1slo5.0 · July 27th, 2009, 12:09 AM

Originally Posted by txbkr

A Holley Systemax added 42rwhp to my set up. Additionally, it added 38rwhp to my friend's and he has an "F" cam. I have a Comp Cams XE266HR. Both are 331 C.I. with AFR 185's, full exhaust, 3.73, etc and both run low 12's granny shifting on drag radials.

Hope it helps.

A systemax added 42rwhp to your naturally aspirated 12 second car? Lets see some dyno sheets.

Mean 5.0 · July 28th, 2009, 06:44 PM

i gained almost 30 horsepower by going from a BBK SSi to a Holley Systemax, thats after a tune, before a tune, i went from 318 to 338 so thats 20HP right there...

July 26th, 2009, 05:49 PM	#64
WildWill Hardcore Enthusiast 1995 Mustang GT Join Date: Oct 2007 Location: Solomons, MD Posts: 1,112 iTrader: 0 reviews	Don't buy that Comp Cam. If you are truly disappointed with your combo, you need to just start by completely re-doing your top end. Bigger heads for starters... I think the AFR 205's would be a good choice, but that's just my opinion. The biggest trick flow heads you can find would be even better... As far as an intake goes... look into the Eddy Performer RPM II... they have great flow numbers and I have a friend with a 347 in his 95 who switched to an RPM II from his track heat intake and picked up around 20 rwhp. Please don't put another off-the-shelf cam in there. AFTER you get the heads and intake that you want (you could port/polish them to match too...) then call up Jay Allen at Camshaft Innovations and have him custom grind you a cam that is specific to your combo. Guaranteed you will be surprised at how much power you make. Good luck man... __________________ GT40p heads, 1.7 crane RR's, GT40 u/l, MAC LTs, MAC o/r h-pipe, Flowmaster 40s, 65mm t/b, '03 Cobra Bilstein Struts, Tokico Bullitt Shocks, MM c/c plates, Eibach Sportlines, B&M shifter, 255lph f/p, RAM p/g clutch, Fidanza alum fly, rebuilt t-5

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July 26th, 2009, 09:19 AM	#63
Mean 5.0 Regular 1990 Ford Mustang GT 12.0 @ 116 Join Date: Nov 2008 Location: Cherry Point NC Posts: 58 iTrader: 0 reviews	After reading more...i realized that question was not directed at me...shutting up...

July 26th, 2009, 07:05 PM	#65
txbkr Regular 08 GT-92 lx Join Date: Dec 2007 Location: AZ Posts: 55 iTrader: 0 reviews	A Holley Systemax added 42rwhp to my set up. Additionally, it added 38rwhp to my friend's and he has an "F" cam. I have a Comp Cams XE266HR. Both are 331 C.I. with AFR 185's, full exhaust, 3.73, etc and both run low 12's granny shifting on drag radials. Hope it helps.

July 28th, 2009, 06:44 PM	#68
Mean 5.0 Regular 1990 Ford Mustang GT 12.0 @ 116 Join Date: Nov 2008 Location: Cherry Point NC Posts: 58 iTrader: 0 reviews	i gained almost 30 horsepower by going from a BBK SSi to a Holley Systemax, thats after a tune, before a tune, i went from 318 to 338 so thats 20HP right there...

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