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

fuel pressure

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Old Mar 14, 2008 | 02:00 PM
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From: Ft Liquordale Florida
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What is the factory fuel pressure setting for 1987 L98
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Old Mar 14, 2008 | 02:07 PM
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I also got a 160 thermostat and they sent it without a gasket Am I to believe that there is no gasket between the thermostat housing and intake manifold
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Old Mar 14, 2008 | 03:24 PM
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Originally Posted by alecracing
What is the factory fuel pressure setting for 1987 L98
rec with stock injectors is 38 - 42 psi......I would set it on the high end.
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Old Mar 14, 2008 | 04:05 PM
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Originally Posted by alecracing
I also got a 160 thermostat and they sent it without a gasket Am I to believe that there is no gasket between the thermostat housing and intake manifold
Yes there is a gasket but I've never got one with a tstat.Go over to Arts corvette parts and pick one up.
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Old Mar 14, 2008 | 08:04 PM
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I have my 86 set at 40 psi vac connected with a adjustable FPR. There is no gasket around the t-stat in the L98 like there is on the LT1. There is a gasket that fits the shape of the t-stat housing thou.
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Old Mar 15, 2008 | 11:30 AM
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Thanks guys

set fuel pressure to 42, at 38 it was pinging after shift into second
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