ls2 PRC as cast Dyno results

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Jul 26, 2014 | 09:10 AM

nogomofo1970

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From: Oregon City

ls2 PRC as cast Dyno results

So I finally got my GTO together for some summer fun, here's my combo.

2005 GTO M6 3.42 gears (billet flywheel , monster 2)
Stock block 68k mile ls2
EDC 231/239 .629"/.651"
PRC AS CAST 225 62cc 11.47 CR
ATI Damper (non underdrive)
Port matched FAST 102, velocity ring , stock 90mm tb , 100mm maf with screen
ls3 injectors, -8 fuel rails, 4 corner steam ports (pain in the ***!)
Svede otr intake
Manton 11/32 pushrods
Morel street lifters
Dynatech 1 3/4 headers, custom 3" catted mids, 2.5" borla cat back
Chevron 92 octane

Last edited by nogomofo1970; Aug 7, 2014 at 05:10 PM.

Jul 26, 2014 | 11:19 AM

ranmas2004

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Wow!! Stout numbers and on the heartbreak dyno too!!!

Jul 26, 2014 | 12:47 PM

1989GTA

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Quote:

Originally Posted by ranmas2004

Wow!! Stout numbers and on the heartbreak dyno too!!!

I agree. Nice numbers.

Jul 26, 2014 | 03:55 PM

ls1 down under

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Very nice. Here in Australia the same car is known as a Holden 'Monaro' GTO.

Love that it spun up those numbers on 92 octane too!!!

Jul 27, 2014 | 12:00 AM

00ssmg

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From: JOLIET

Did you have to clearance the heads to fit the 11/32 pushrods? I have the same heads that I will be building an ls1 with. Texas speedy wouldn't answer the question and told me to run the 5/16 pushrod. Nice #s as well!!

Jul 27, 2014 | 10:19 AM

Rise of the Phoenix

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From: Jefferson City, MO

Very well thought out combo and great numbers.

Jul 27, 2014 | 04:39 PM

nogomofo1970

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From: Oregon City

Quote:

Originally Posted by 00ssmg

No issues, I called texas speed about running 3/8 and they said they wouldn't fit but the 11/32 cleared fine.
The car is way too much fun now and drives very nice still, I just got back from a 600 mile road trip without a hick up.

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Jul 31, 2014 | 10:31 PM

NW Iowa WS6

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From: Sioux Center, Iowa

Those heads are great, my friend did 451/412 with 62cc chambers, torquer v2, and fast 92 on a 160k mile ls1

Aug 7, 2014 | 05:15 PM

#10

nogomofo1970

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From: Oregon City

Quote:

Originally Posted by 00ssmg

Good catch, the heads aren't 60cc they are 62cc like your's. No fly cutting , I measure PTV clearance and I don't recall being much under .100"

Your compression seems low, what is your bore?

Aug 7, 2014 | 07:29 PM

#11

00ssmg

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From: JOLIET

Have a factory SBE LS1. Texas Speed told me the 62cc would put me right at 10.8:1

Aug 21, 2014 | 12:50 PM

#12

Sales@Tick

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From: Mount Airy, NC

Very nice results. Those same heads on a stock bottom end 06' GTO we did made over 500rwhp.

Aug 22, 2014 | 07:05 AM

#13

ranmas2004

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Quote:

Originally Posted by Martin@Tick

Very nice results. Those same heads on a stock bottom end 06' GTO we did made over 500rwhp.

Is that on a dynojet?

Aug 22, 2014 | 02:33 PM

#14

Sales@Tick

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From: Mount Airy, NC

Quote:

Originally Posted by ranmas2004

Is that on a dynojet?

Yes it was. Most MD's read 4-8% lower than a DJ. Sometimes lower than 4% and sometimes higher than 8%. That is the norm I have seen.

I bet the car is a blast to drive!

Aug 27, 2014 | 07:42 PM

#15

Last C5

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From: Vancouver, WA.

Ah, this is no big deal. He used Tom Wong to tune it and I saw Tom get 490 rwhp out of stock Ford Fiesta the other day. Well, I may be a little off, but I'm sure it was close to that.