Front mount swap how much hp gains
11-08-2008, 04:04 PM
#1
Front mount swap how much hp gains Hey there guys I just had a question about moving to a front mount over the 3.5 twins. I have just recently done this and picked up about 12 hp which I thought was a bit low. I have seen others pick up 30-50 with this swap.
Backround on the motor is a...
408
Reworked mamo 205 AFR's
EPP f/i cam
ls6
1 3/4 headers
I realize that I could use a fast 90 and bigger headers but ive seen guys make big power with the ls6, I do plan to go bigger on exhaust eventually.
Going off of memory the intake temp on the 3.5's were 150 and with the f/m it was 20 over ambient which was about 80 so 100 intake temps. Both runs made about 10#'s with a D1 and 3.7 pulley.
640rwhp, 600rwtq with 3.5's
650rwhp, 605rwtq F/M
What do you guys think? Any suggestion?
Backround on the motor is a...
408
Reworked mamo 205 AFR's
EPP f/i cam
ls6
1 3/4 headers
I realize that I could use a fast 90 and bigger headers but ive seen guys make big power with the ls6, I do plan to go bigger on exhaust eventually.
Going off of memory the intake temp on the 3.5's were 150 and with the f/m it was 20 over ambient which was about 80 so 100 intake temps. Both runs made about 10#'s with a D1 and 3.7 pulley.
640rwhp, 600rwtq with 3.5's
650rwhp, 605rwtq F/M
What do you guys think? Any suggestion?
11-08-2008, 10:00 PM
#3
Im sure the tunner did that, but If I remember correctly we added more timing and it picked up minimal gains and just wasnt worth adding anymore. I believe we wound up at 16 or 18 degrees but I can check to make sure. The whole combo seems lacking to me but hell I havent been to the track and thats what Im more interested in. I cant complain though Its got tons of torque down low which is what I was looking for more than anything for the D/D, low boost and 91 octane ( over 500rwtq from 3300 to 6500).
11-10-2008, 02:03 PM
#5
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I have 346 went from twins to front mount, air intake temp fell 80-100 deg cooler,was very impressed. Added 6 deg of timming, the car sped up at the trach a half of second, not sure about dyno #'s heading out there tommorow. Purchased from exotic performance plus.
11-11-2008, 05:08 AM
#6
I have 346 went from twins to front mount, air intake temp fell 80-100 deg cooler,was very impressed. Added 6 deg of timming, the car sped up at the trach a half of second, not sure about dyno #'s heading out there tommorow. Purchased from exotic performance plus.