Forced induction okay for stock engine?
05-09-2014, 09:21 PM
#11
Senior Member
You will be fine. I ran 12# on my N/A engine with a L swap. And had the extra load and weight of it being lifted on 38X15.50R20s. The key is to keep IATs cool, tranny temps cool and get a good tune. Ran it for 2 years.
My 6800lb FX4 supercrew on 38s ran 14.56@91MPH with a 2.08 60'.
I did end up meting #2 piston but it was due to my tune being set up for straight fuel and ended up running a mixture of E10 and 104 race fuel with ethanol as well so ran lean. Still drove home 50miles. Would do it again in a second.
If your nervous run lower boost but more is better :-)
Wayne
My 6800lb FX4 supercrew on 38s ran 14.56@91MPH with a 2.08 60'.
I did end up meting #2 piston but it was due to my tune being set up for straight fuel and ended up running a mixture of E10 and 104 race fuel with ethanol as well so ran lean. Still drove home 50miles. Would do it again in a second.
If your nervous run lower boost but more is better :-)
Wayne
05-09-2014, 09:23 PM
#12
Senior Member
Oh and Ls DONT have forged bottom ends. They have forged cranks but the pistons and rods are the same material as the N/As. And N/A cranks have been know to stay together or 800RWHP trucks. Wayne
05-10-2014, 05:01 PM
#15
You will be fine. I ran 12# on my N/A engine with a L swap. And had the extra load and weight of it being lifted on 38X15.50R20s. The key is to keep IATs cool, tranny temps cool and get a good tune. Ran it for 2 years.
My 6800lb FX4 supercrew on 38s ran 14.56@91MPH with a 2.08 60'.
I did end up meting #2 piston but it was due to my tune being set up for straight fuel and ended up running a mixture of E10 and 104 race fuel with ethanol as well so ran lean. Still drove home 50miles. Would do it again in a second.
If your nervous run lower boost but more is better :-)
Wayne
My 6800lb FX4 supercrew on 38s ran 14.56@91MPH with a 2.08 60'.
I did end up meting #2 piston but it was due to my tune being set up for straight fuel and ended up running a mixture of E10 and 104 race fuel with ethanol as well so ran lean. Still drove home 50miles. Would do it again in a second.
If your nervous run lower boost but more is better :-)
Wayne
05-11-2014, 04:09 PM
#17
The only difference is the lightning has (17 CC) hypereutectic dished pistons. N/A's use flat top cast pistons (0 CC). This is why the N/A engines are slightly higher compression. Compression on a N/A engine is 9:1 as mentioned above, I believe the lightning has 8.5:1.