78 Malibu w/LQ4 and Nitrous
09-16-2014, 10:13 AM
#24
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09-17-2014, 12:22 PM
#31
150 is a sneeze to these motors. the tune up can even be bad. once you get to 225-250, you need to be on top of the tune or things can go a lil sideways. i'm wanting to do a 250 on my stock bottom, but i'll probably stop at 200 due to my home made flycut factory pistons.
09-17-2014, 01:49 PM
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Some info that may be useful:
-I run -10 plugs, .025gap
-Timing and Fuel on the nitrous tune is very conservative
-Always 114 fuel
-I have an Induction Solutions Fogger that is flowed and installed by them (Big Key to my times!)
-I do a compression test after every track date to see if anything got hurt
Like I said in the spring I am going to try and get more aggressive with the tune and put the bigger jets in.
See what happens!
-I run -10 plugs, .025gap
-Timing and Fuel on the nitrous tune is very conservative
-Always 114 fuel
-I have an Induction Solutions Fogger that is flowed and installed by them (Big Key to my times!)
-I do a compression test after every track date to see if anything got hurt
Like I said in the spring I am going to try and get more aggressive with the tune and put the bigger jets in.
See what happens!
09-17-2014, 03:04 PM
#35
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Some info that may be useful:
-I run -10 plugs, .025gap
-Timing and Fuel on the nitrous tune is very conservative
-Always 114 fuel
-I have an Induction Solutions Fogger that is flowed and installed by them (Big Key to my times!)
-I do a compression test after every track date to see if anything got hurt
Like I said in the spring I am going to try and get more aggressive with the tune and put the bigger jets in.
See what happens!
-I run -10 plugs, .025gap
-Timing and Fuel on the nitrous tune is very conservative
-Always 114 fuel
-I have an Induction Solutions Fogger that is flowed and installed by them (Big Key to my times!)
-I do a compression test after every track date to see if anything got hurt
Like I said in the spring I am going to try and get more aggressive with the tune and put the bigger jets in.
See what happens!
What timing are you using on the spray
What is your compression ratio/cranking compression?
Great times by the way. Eric L
09-17-2014, 04:48 PM
#36
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Yes -10 heat range.
Timing is flat at 32 and I pull 10 degrees on the hit, but I started at pulling 12 and worked up to 10degrees out.
Comp ratio is 9.4:1 I think? box stock LS3's on an LQ4.
Cranking comp. around 180psi
Timing is flat at 32 and I pull 10 degrees on the hit, but I started at pulling 12 and worked up to 10degrees out.
Comp ratio is 9.4:1 I think? box stock LS3's on an LQ4.
Cranking comp. around 180psi
