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

ACCEL SUPERRAM COLD START

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Old Feb 22, 2003 | 03:24 PM
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Default ACCEL SUPERRAM COLD START

Just received my Accel Superram from Lingenfelter for a 1986 corvette. I do not see a cold start hole in the runners for the cold start injector. Do i need it or do i plug it up. HELP :crazy:
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Old Feb 22, 2003 | 03:34 PM
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You won't use the CSV with the superram base. You will need to get a plug for hte back of your fuel rail also.
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Old Feb 22, 2003 | 04:05 PM
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Default Re: (scorp508)

http://www.tunedport.com/

You can get your hands on a fuel rail plug from these guys for $15 or so
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Old Feb 22, 2003 | 09:43 PM
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Default Re: (chucks88)

How does the removal of the cold start injector affect engine start up, cold idle, etc?
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Old Feb 22, 2003 | 10:24 PM
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How does the removal of the cold start injector affect engine start up, cold idle, etc?
Mine cranked a little longer, but always fired right up and idled great. It would hunt a little until it reached closed loop, but then was a smooth as could be.

If you use Tunercat to burn your own PROMs they have recently added the ability to modifiy a "Crank pulse width multiplier vs. Coolant Temp" that will enable you to add more fuel during a cold start like the '89+ cars did since they had no 9th injector. The 9th injector only operates when coolant is below 100* (F).
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Old Feb 22, 2003 | 11:03 PM
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Default Re: (CorvetteZ51Racer)

If your engine is tuned right and injectors are good/clean, it shoudl start up within 2 cranks.. I plugged my 9nth injector about 2 years ago, and have not have any difference with startup. In the mornings it was on the 1st crank (almost instantly) and when warm it was about 2-3 cranks.. (My injectors were bad that's why).
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