408/AFR/T-rex on engine dyno

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Mar 30, 2007 | 08:26 PM

turbo'd stang

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408/AFR/T-rex on engine dyno

I was pretty amazed at the power this motor made. Hans Feustal did the machine work, assembly and I used BS3 to tune it. It made 633/578 torque. I told Hans we would be lucky to get 600 out of it..lol.

Good numbers from two tried and true parts...AFR's and the T-rex cam.

Other mods to the motor are:
stock FAST intake
NW 90
Kooks 1 3/4" headers
compression was 11:1
pump gas

Mar 30, 2007 | 09:09 PM

Jeremiah

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Great numbers!

Mar 30, 2007 | 09:33 PM

brad8266

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Good numbers, what that like 550 RWHP on average on an M6?

Mar 30, 2007 | 09:34 PM

mr2guru

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I had that exact combo in my GTO.... it made 520whp

Is this flywheel numbers?

edit: n/m reading comprehension owns me.

Last edited by mr2guru; Mar 30, 2007 at 09:39 PM.

Mar 30, 2007 | 09:35 PM

brad8266

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^^^ yeah he said engine HP. Are those numbers STD HP or SAE?

Mar 30, 2007 | 09:40 PM

hotrodrx7

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Are these 225cc heads?

Mar 30, 2007 | 10:14 PM

brad8266

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Quote:

Originally Posted by hotrodrx7

Are these 225cc heads?

Its a 408 so i would assume so.

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Mar 31, 2007 | 01:30 AM

bad95killer

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Awesome numbers man

So this is for stang or F-Body ?!

peace

Mar 31, 2007 | 07:29 AM

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venom ws7

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From: EARTH

wow great numbers is this going in M6 or A4 car?

Mar 31, 2007 | 10:38 AM

#11

turbo'd stang

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The motor is going in a M6 Trans Am.

Mar 31, 2007 | 10:41 AM

#12

bad95killer

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Quote:

Originally Posted by turbo'd stang

The motor is going in a M6 Trans Am.

Sounds awesome man & keep us posted with rwhp/rwtq though

peace

Mar 31, 2007 | 11:47 AM

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Louie83

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Very nice.

Any plans on upgrading to 1 7/8 headers?

Mar 31, 2007 | 11:58 AM

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Kraest

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Should be around 530rwhp/491rwtq through the 6-speed.

Not bad at all.

Don't underestimate the LSx platform

Mar 31, 2007 | 02:43 PM

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pdd

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From: dudley mass

nice

Apr 2, 2007 | 10:06 AM

#16

V6 Bird

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Quote:

Originally Posted by turbo'd stang

Yeah, these are out of the box AFR 225's

Post the sheet man. What were the BSFC numbers when he put it up on the brake?

Apr 2, 2007 | 10:37 AM

#17

turbo'd stang

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Quote:

Originally Posted by V6 Bird

Post the sheet man. What were the BSFC numbers when he put it up on the brake?

Not my motor, so I didn't grab any sheets. I don't know a damn thing about engine dynos, but I think that it was around .4....sound right? I just paid attention to the WB to make sure it was ok during a pull.

Apr 2, 2007 | 10:55 AM

#18

Patrick G

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Quote:

Originally Posted by Kraest

Should be around 530rwhp/491rwtq through the 6-speed.

Not bad at all.

Don't underestimate the LSx platform

I think that's a little conservative. My experience has shown a 60-65 hp loss when going from the engine dyno to chassis dyno in an F-body with a stick shift. I think the number is going to be higher than 530s.

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