Rolled the 2.4l HHR

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11-23-2011, 12:04 AM

hhrfreek

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Rolled the 2.4l HHR

I put down 257whp/233tq with this set up:

2.4l Ecotec/F23
93 octane 12.0 afr
Ported Eaton m62 3.1" (9psi)
LS4 TB
Dual pass/Phenolic Spacer
ZZP cams
Badmab header
ZZP 3" downpipe(no cat)
Stock cat back with Magnaflow muffler

Supercharged 2.4l HHR Dyno - YouTube

Last edited by hhrfreek; 11-26-2011 at 06:54 PM.

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11-23-2011, 12:06 AM

07cobalt2.2

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wow... makes me want to do this to my 2.4! very cool!

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11-23-2011, 12:08 AM

jonathan923

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lol thats awesome. thats the first m62 HHr ive seen and to be honest i would be like wtff if i see one of these whining on the street lol.

good numbers man

looks good too and now go find some calibers srts to run lol

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11-23-2011, 12:14 AM

ssblackstealth

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wow great numbers on 9psi m62 set up!! i too have yet to see this on an hhr

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11-23-2011, 12:15 AM

hhrfreek

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Not the first, but one of the few.

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11-23-2011, 01:03 AM

padlock

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you from the milwaukee area i take it??

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11-23-2011, 01:34 AM

hhrfreek

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Yeah, Racine. I haven't been to a Dyno shop before and this place looked legit so I drove up to Waukesha and went to Late Model Throttle. I thought Waukesha was closer lol(50 minutes). Oh well. I am going back so I can run the same dyno after I get the head ported, pulley down and e85.

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11-23-2011, 01:35 AM

nhanson

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numbers seem low with the type of mods...maybe i have too high of expectation?

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11-23-2011, 01:53 AM

hhrfreek

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Maybe...

Dynos are like Viagra. Results may vary.

I was thinking 265whp going in. 3.1" at only 9 psi. This was just a feeler dyno. I have a bit more work to do. If I am already at 257whp I will end up well over 300whp when I am done.

The LS4 tb and ported SC should show much bigger gains with a 2.7" and a revised intake. I am porting the head and running e85 as well.

Last edited by hhrfreek; 11-23-2011 at 03:08 AM.

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11-23-2011, 03:54 PM

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robk

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Sweet setup OP!!! Good numbers as well

robk

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11-23-2011, 04:04 PM

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cubaniche

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Nice numbers man! Grats! Theres a a 2.2HHR here in the Houston Area that S/C'd begging of last year if Im correct. His SC here on ss.net is CJ_Krause.

Good luck on the future mods man. Lookin' good