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

roller rockers and chip??

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Old Sep 25, 2004 | 08:49 PM
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Default roller rockers and chip??
can i install 1.6 rockers without tuning my chip right away?? ski-down-it did my chip so i can send it back to get done but can i drive the car or will it run bad.
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Old Sep 25, 2004 | 08:54 PM
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I don't see a problem
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Old Sep 25, 2004 | 08:55 PM
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No need for a tune change with the 1.6 rr's, go ahead and install them.
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Old Sep 25, 2004 | 09:51 PM
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great, but i always thought you needed to reburn the chip okay i can deal with that. thanks guys
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Old Sep 25, 2004 | 10:18 PM
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From: eville in
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what else has been done
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Old Sep 25, 2004 | 10:19 PM
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as far as what?? tuning of the chip or mods??
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Old Sep 25, 2004 | 10:22 PM
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From: eville in
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both
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Old Sep 25, 2004 | 10:31 PM
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well jesse did the chip so i guess fuel curve ,timing, fans at 160 and i think thats it there could be more?? mods 52 mm throttle body, accel lg tube runners ported to the bigger gasket, ported plenum to match,tpis long tube headers with side effects exhaust and random tech main cat, vortech ram air box, and a bunch of little things.
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Old Sep 25, 2004 | 10:37 PM
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From: eville in
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Nice I'd guess the 1.6's would go real good
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Old Sep 25, 2004 | 10:39 PM
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by any chance what could be my rear wheel hp/tq be???
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Old Sep 25, 2004 | 11:09 PM
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Install an AFPR set to current fuel pressure; then you can bump FP a few lbs to match increased air flow at high rpm.

Is it L98 or LT1??
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Old Sep 25, 2004 | 11:19 PM
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it's a L98 i do have a afpr set at 40 with line on??
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Old Sep 26, 2004 | 12:18 AM
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OK, so measure fuel pressure at idle with the vacuum line off and bump it 1-2 psi after the RRs go in.

If you have a scan tool, record the O2 sensor values during a WOT run before the RRs go in. Then you can simply bump fuel pressure after the install to get the same values.
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Old Sep 26, 2004 | 01:44 AM
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From: eville in
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are you going on intake's and exh. or just the exh. to help the flow %
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Old Sep 26, 2004 | 10:01 AM
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i was thinking 1.6's all the wat
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