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Jun 28, 2009 | 04:20 PM

kevtherev

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More power needed !

OK, My 2003 stock LS1+ P1SC is making 430 hp.What is the next step ? want reliability but also need to be in the 12's at the strip ?

Jun 28, 2009 | 06:14 PM

chevellepowered

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From: ocala,fl--- forest-ocklawaha

317 heads and ls6 cam,, lil more boost.. should be 11's
heads -$350
cam $150
you should be there now with a procharger..
i hope that 430 is rwhp,,, or something is wrong..

Jun 28, 2009 | 06:24 PM

TurboAv

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From: Tonopah, AZ

2003 what? With 430rwhp you should already be in the 12's. Manual or Auto car? What kind of 60ft times are you getting?

Jun 28, 2009 | 06:53 PM

tkimrey

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From: Oklahoma

With 430 hp you should definitely be in the 12's. What car is this 2003 ls1 in??

Jun 29, 2009 | 02:57 PM

kevtherev

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Staging Lane

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LS1 from some sort of Holden,now residing in 61Vette with 4L60E.Tyres Goodyear Eagle F1's.My first(and last) strip action had me spinning wheels and resulting in 2.6/60ft and 14.2 ET,terminal 106mph.Strip surface crap and known to give times some 0.5 secs off the norm.These times prompted trip to dyno with resuting 430hp at flywheel?A/F from wideband seemed OK showing 11.0 at WOT.Prochargers making 6-7lbs.So these numbers not too impressive? Thanks Kev.

Jun 29, 2009 | 03:18 PM

01CamaroZ28

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From: Orlando, FL

hp numbers definitely sound low to me...your ET should be in the 12's

Jun 29, 2009 | 03:56 PM

tkimrey

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From: Oklahoma

Power seems low. Are you on the stock converter still?

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Jun 29, 2009 | 07:23 PM

tkimrey

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From: Oklahoma

Do you have a boost gauge? If so, where do you have it referenced?

Jun 29, 2009 | 07:35 PM

#10

73 nova guy

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From: Mount Bethel PA

2.6 60 ft sounds like a tire fryer at 106 mph that's like 12.50-60ish sounds like converter or a tire problem to me

Jun 30, 2009 | 03:09 AM

#11

kevtherev

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Staging Lane

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Boost gauge is an Innovate and referenced from their manifold block which is basically tee'd of brake booster vacuum supply fed as usual from rear of manifold.When it gets to about 6-7lbs needle on gauge starts to fluculate(vibrate) rapidly.Procharger already has one size down from stock pulley so should be making some boost.

Tyre fryer it seems.On the next run I let out some air(15lbs!)probably too much.Light launch,floored it only to loose back end as boost came in as auto changed up.

Thanks for suggestions,Kev.