C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Aug 2, 2009 | 06:40 PM
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Default setting cam

anyone know about this or how to really do it?

eplacing the 305 intake (TPI) with the tpis miniram is worth the price that you paid, several times over...altho you could spend half $ for a GM miniram ( LT1 intake) and get equal performance.
keep your stock cam, just ''degree'' it in to intake centerline at abt 106* (thats abt 10*advanced from oem ''emissions'' setting)...won't pass laboratory emission test for ''new'', but will start better/more power/better fuel mileage...will even have slight ''lope'' at idle.
stock heads coupled with oem ''dished'' pistons are nearly perfect compression ratio if you plan to run on ''pump'' gas (no racing gas @ $7 per gal)....a ''valve job'' would be nice, a few minutes spent to clean up the pockets under the valves will add a bit of power, use the ''thin'' hi-perf head gaskets from your local chevy dealer (only bargain in GM) to gain half a point of compression if premium gas is used exclusively.
above ''stock'' set-up with 3.54 rear will out-run most of the ''after-market money pits'' and still be rock-solid reliable.
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Old Aug 3, 2009 | 07:09 AM
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Lots of info here
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Old Aug 3, 2009 | 02:37 PM
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thanks
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Old Aug 3, 2009 | 03:18 PM
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From: Glenbeulah Wi
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Originally Posted by pologreen1
anyone know about this or how to really do it?

eplacing the 305 intake (TPI) with the tpis miniram is worth the price that you paid, several times over...altho you could spend half $ for a GM miniram ( LT1 intake) and get equal performance.
keep your stock cam, just ''degree'' it in to intake centerline at abt 106* (thats abt 10*advanced from oem ''emissions'' setting)...won't pass laboratory emission test for ''new'', but will start better/more power/better fuel mileage...will even have slight ''lope'' at idle.
stock heads coupled with oem ''dished'' pistons are nearly perfect compression ratio if you plan to run on ''pump'' gas (no racing gas @ $7 per gal)....a ''valve job'' would be nice, a few minutes spent to clean up the pockets under the valves will add a bit of power, use the ''thin'' hi-perf head gaskets from your local chevy dealer (only bargain in GM) to gain half a point of compression if premium gas is used exclusively.
above ''stock'' set-up with 3.54 rear will out-run most of the ''after-market money pits'' and still be rock-solid reliable.
Call me , you can borrow my equipment or I can help you with it when you are ready.

Brian
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Old Aug 3, 2009 | 03:34 PM
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Originally Posted by bjankuski
Call me , you can borrow my equipment or I can help you with it when you are ready.

Brian
Thanks Brian you are a life saver here. If that is the case, when I get the intake then we can set something up. I really appriciate all the help.
I will call you to figure out decisions on the rockers choice, and maybe this cam adjust if it wont take all your time up.
thanks again
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