370/Ls3 F1a dyno results
04-15-2015, 08:38 PM
#1
TECH Resident
Thread Starter
iTrader: (12)
Join Date: Jul 2005
Posts: 765
Likes: 0
Received 0 Likes
on
0 Posts
370/Ls3 F1a dyno results 1999 Camaro
370" iron block with Callies Compstar rods, Weisco -3.2cc pistons 10.6:1 I believe
stock crank
Ls7 lifters, custom grind cam from Tick Performance
stock Ls3 heads decked .035 with ls9 gaskets
F1a head unit with no filter, just a homemade screen
4.13" blower, 8.65" CBR crank pulley, Aster bracket
ATI ballancer
4" procharger front mount
1 7/8" TSP longtubes, TSP true duals straight piped
Ls3 intake, 90mm TB
9" rear with 3.89 gear
M6 with Monster lt1-sc twin disk
Fuel system
twin 450 pump squash setup
PTFE -8 line, Holly rails
1600cc injectors
E85
937/842
Motor lost oil pressure right after the dyno while street tuning it so the motor is coming back out. Pretty much sucks but is what it is. Its very evident by looking at the oil filter that it wiped out a bearing/bearings somewhere. I'm not sure if the crank flexed or something and messed up main or what. It had about 600 miles on it and 4 oil changes with no wot pulls up until this so im leaning towards crank but who knows till its apart. I'm going to go ahead and put a forged crank in it and likely put a set of thicker deck aftermarket heads and shoot for close to the 1000 mark. Just not sure which ones to go with yet. It was picking up big gains from every degree of timing added but had to stop because it started pushing water. I know Ls3 heads are kinda known for that and im sure cutting them .035 just made matters worse.
370" iron block with Callies Compstar rods, Weisco -3.2cc pistons 10.6:1 I believe
stock crank
Ls7 lifters, custom grind cam from Tick Performance
stock Ls3 heads decked .035 with ls9 gaskets
F1a head unit with no filter, just a homemade screen
4.13" blower, 8.65" CBR crank pulley, Aster bracket
ATI ballancer
4" procharger front mount
1 7/8" TSP longtubes, TSP true duals straight piped
Ls3 intake, 90mm TB
9" rear with 3.89 gear
M6 with Monster lt1-sc twin disk
Fuel system
twin 450 pump squash setup
PTFE -8 line, Holly rails
1600cc injectors
E85
937/842
Motor lost oil pressure right after the dyno while street tuning it so the motor is coming back out. Pretty much sucks but is what it is. Its very evident by looking at the oil filter that it wiped out a bearing/bearings somewhere. I'm not sure if the crank flexed or something and messed up main or what. It had about 600 miles on it and 4 oil changes with no wot pulls up until this so im leaning towards crank but who knows till its apart. I'm going to go ahead and put a forged crank in it and likely put a set of thicker deck aftermarket heads and shoot for close to the 1000 mark. Just not sure which ones to go with yet. It was picking up big gains from every degree of timing added but had to stop because it started pushing water. I know Ls3 heads are kinda known for that and im sure cutting them .035 just made matters worse.
04-15-2015, 10:00 PM
#6
If mine will put down over 800 on a similar built F1C 93/Meth with the air filter, I will be happy. Almost have it back together.
Your results are most excellent. Right up to that oil problem. The thinner deck heads have got to go. I have AFR 225's. Jason told me he and Chuck picked them to hold the deck down as much as anything flow related.
How much boost was it pushing?
Your results are most excellent. Right up to that oil problem. The thinner deck heads have got to go. I have AFR 225's. Jason told me he and Chuck picked them to hold the deck down as much as anything flow related.
How much boost was it pushing?
04-15-2015, 10:23 PM
#8
TECH Resident
Thread Starter
iTrader: (12)
Join Date: Jul 2005
Posts: 765
Likes: 0
Received 0 Likes
on
0 Posts
If mine will put down over 800 on a similar built F1C 93/Meth with the air filter, I will be happy. Almost have it back together.
Your results are most excellent. Right up to that oil problem. The thinner deck heads have got to go. I have AFR 225's. Jason told me he and Chuck picked them to hold the deck down as much as anything flow related.
How much boost was it pushing?
Your results are most excellent. Right up to that oil problem. The thinner deck heads have got to go. I have AFR 225's. Jason told me he and Chuck picked them to hold the deck down as much as anything flow related.
How much boost was it pushing?
20-21#. Had a little belt slip/walk which I addressed when I got it home from the dyno so maybe it will make another pound now but who knows.
04-16-2015, 07:21 AM
#19
TECH Resident
Thread Starter
iTrader: (12)
Join Date: Jul 2005
Posts: 765
Likes: 0
Received 0 Likes
on
0 Posts
If I remember correctly around 90% at like a 50# base. I started with fic127 that they swore would be plenty for 1000. The first pull the car made like 860 and they were already at 130% with a 58# base pressure.
04-16-2015, 07:23 AM
#20
TECH Resident
Thread Starter
iTrader: (12)
Join Date: Jul 2005
Posts: 765
Likes: 0
Received 0 Likes
on
0 Posts
Any input on head choices is welcomed. I need to be around a 64cc to keep compression where it's at now I believe. Also I believe I'm going to go with a k1 stock stroke crank.