Hey everyone. I have built my first MS (MS II, V3) and megashift boxes for a 94 LT1/4L60 drivetrain swap. The engine is running the hottest LT1 "computer grind" cam from Comp, and the heads have been ported aggressively. I'm running an adjustable fuel system with a vacuum reference, factory injectors, factory Optispark with MSD coil and 6A box, and the usual oversize throttle body, headers, ect.
My questions are as follows;
Should I run a vacuum reference to the FP reg?
Where should I set the pressure at idle?
Does anyone run a setup like this? And could I use your VE tables as a starting point for tuning?
I have a WB O2 sensor installed for the finer tuning, and I'm not too worried about the tuning of the megashift. I'm mostly concerned with finding a good fuel pressure and a VE table that's in the ballpark.
Thanks
Newbie needs a VE starting point for a built up LT1
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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bigwheels6
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Matt Cramer
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Re: Newbie needs a VE starting point for a built up LT1
Yes.bigwheels6 wrote:Hey everyone. I have built my first MS (MS II, V3) and megashift boxes for a 94 LT1/4L60 drivetrain swap. The engine is running the hottest LT1 "computer grind" cam from Comp, and the heads have been ported aggressively. I'm running an adjustable fuel system with a vacuum reference, factory injectors, factory Optispark with MSD coil and 6A box, and the usual oversize throttle body, headers, ect.
My questions are as follows;
Should I run a vacuum reference to the FP reg?
Do you anticipate running out of fuel at full throttle? If not, I'd leave it at stock.Where should I set the pressure at idle?
