Quote:
Originally Posted by Sweet Ride
Sean:
A few questions before I commit.
Can you turn off the skip shift with the tuner?
Can you make the fan turn on sooner and/or run longer?
Is this only for N/A cars or will it work on forced induction as well?
I am also concerened about my fuel pump not being able to handle much more power. I have heard they are good up to about 650. I think with a good tune and my planned mods I will be way over that. Do you sell aftermarket pumps that can handle more than stock?
Any advice is appreciated. Thanks!
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Yes, we have the skip shift function turned off in all the tunes we create.
Yes, we set the fans to come on at a lower temperature. We lower both the low and high speed activation points by 12 degrees (stock low activates at 207 and high at 217).
With custom tuning, at the vehicle, forced induction and heads / cam cars with different injectors can be programmed. However, this takes some time at the dyno and is done specifically for that car (unless someone builds a second car / engine that's identical). Before pulling the trigger on an SCT for a forced induction or heads / cam car, find out if anyone in your area has the SCT software to tune it. You can buy a single user version, allowing you to do everything you / your tuner to do everything. The software is available from SCT and is "about" $1350.
This group buy should be considered for engines with "standard" bolt ons, up to adding cylinder heads. Because camshafts change vacuum, we should consider those to require the cutom tuning I spoke about in the paragrah above.
Regarding fuel pumps, you're correct that stock Gen2 pumps with a voltage booster can support around 650 RWHP. Adding a water /methanol injection system can gain you enough to support up to 710 RWHP. We've built some custom fuel pump setups for Vipers in the shop making 900 RWHP, but as far as a "kit" goes, no, we don't have anything. I think David Weaver at American Racing Tech in Texas has a twin Walboro pump setup available.