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Setup is:
EFR 6258
Kraken Low Mount
3 inch downpipe to 2.5inch catback
Fully Built BP4W w/ no VICS control
1050-X Injectors
DW200 Pump
93 Texas Pump
Stock EFR Wastegate canister, BCSV, and CRV
Power had to be dialed back because clutch started to slip but I'm really happy with the results. Feels great on the street despite chopping the HP/TQ after 6K because of the slipping issue. Definitely left a lot of power on the table.
Next time i'm on the rollers, I'll be looking to do the following:
-Either VICS delete or squaretop
-R8 Coils (gap was reduced down to .15 for this run)
-2 port wastegate canister
-New clutch obviously
-E85
-Mac 3-Valve
Don’t delete Vics, or get a square top, unless you’re desperate to delete the minor clutter of the actuator and solenoid. Instead, hook it up and properly tune it. With a decent turbo like you have, I’ve seen almost no benefits from switching to a squaretop. On my 330hp setup, there was a few hp gain above 6000rpm, like maybe 2 or 3, but the bigger difference was a loss of torque in the mid range, where you’ll actually be spending most of your drive time.
Don’t delete Vics, or get a square top, unless you’re desperate to delete the minor clutter of the actuator and solenoid. Instead, hook it up and properly tune it. With a decent turbo like you have, I’ve seen almost no benefits from switching to a squaretop. On my 330hp setup, there was a few hp gain above 6000rpm, like maybe 2 or 3, but the bigger difference was a loss of torque in the mid range, where you’ll actually be spending most of your drive time.
This is good info. I was looking at doing it just to remove a failure point/degree of complexity, but i'll look into the gains to be had again. I'm on MSPNP2; do you just use a generic RPM switch or is there a preferred way of controlling it? I'm in a 96 chassis so it doesn't have VICS integrated in the OEM harness.
First Dyno Sheet (EFR 6258, BP4W)
2
