Ls3 416,TEA TFS 245, EPS cam
08-23-2012, 11:52 AM
#41
Launching!
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Not yet. I'm gonna change the In tank regulator and go from there. Hopefully this solves my problem. It seems to definitely be fueling or electrical because all cylinders are fat/lean depending on how it feels. If this doesn't fix it I'll drop it off by geoffs. Gonna be a few more weeks before I can mess with it.
08-25-2012, 09:55 PM
#42
Less head, more compression, more miles. You can't judge a motor till about 3,000 miles. I think mine did about what yours did right off the bat then with more miles and some tuning did 573/530rw but that was 4+years ago when there was no such thing as the GZ vacuum pump and FAST 102. Just give it some time and see what you get.
09-12-2012, 11:08 PM
#44
On The Tree
Without knowing what the motor setup was like, if you had simply told us "LS-based motor dyno", I would have SWORN the graph belonged to a procharged D1 346 or 364!
Torque curve starts out slow and lazy but builds and climbs with RPM, and horsepower does the same thing, just like a centrifugal. Your HP graph is just a huge vertical climb rather than a curve. Very cool.
There's a bit left in this combination without even changing the cam should you get bored with it. Hint: 12:1 compression on 93 or 12.5:1 and higher on E85 if your pistons and heads will allow it. You have enough cam already to keep the DCR at a reasonable level for pump gas use.
Extra props to you for stepping up to the godfather of TFS cathedrals - 245 ftw!
Torque curve starts out slow and lazy but builds and climbs with RPM, and horsepower does the same thing, just like a centrifugal. Your HP graph is just a huge vertical climb rather than a curve. Very cool.
There's a bit left in this combination without even changing the cam should you get bored with it. Hint: 12:1 compression on 93 or 12.5:1 and higher on E85 if your pistons and heads will allow it. You have enough cam already to keep the DCR at a reasonable level for pump gas use.
Extra props to you for stepping up to the godfather of TFS cathedrals - 245 ftw!
Last edited by Stang2Goat; 09-14-2012 at 01:37 AM.
09-13-2012, 08:03 PM
#45
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I'm gonna change my in tank regulator tommorrow. This better fix it. I've only put like 200miles on it then the problem started. Now it's been sitting for 2 months and now I'm off work. I can't wait to beat on this car. I need to go fast!!!
09-16-2012, 04:30 PM
#46
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Well the regulator wasn't the problem. Also tried another PCM tuned for my setup, that wasn't it either. I'm at a loss. I'm gonna pull the intake and valve covers to look over everything again. Has anyone had an issue with fast 36# injectors?
09-16-2012, 06:18 PM
#48
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Yeah that's them. I just drove the car for a second and it's idling fine. But weak throttle response and once in gear driving it's missing 2500+rpm. Gonna take it to a buddies shop tommorrow to let some more eyes look over it....
09-20-2012, 08:04 PM
#50
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It's fixed!!!!! Just before giving up on it I decided to throw new o2 sensors on it, boy did it payoff. It does have a little pinging at wot. Could this be because of the new 02's? Does the tune need to be looked over? FYI I used Bosch 13111 sensors because of the longer harness.
10-10-2012, 01:21 PM
#52
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Got it all worked out now, I pulled the intake and found oil in the runners. Apparently I didn't use the right sealant on the intake rocker bolts, which caused my o2 sensors to fail and killed the octane in the combustion chamber making it ping. I just left geoffs dyno, it actually picked up 5 hrspwr and 10 trq. All in all its running great now just in time for cruisen the coast
10-10-2012, 09:10 PM
#54
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No, still just 9"s. I'm gonna up it to 14" when I get a in car gauge. I didn't put the stock rims on either this time. Dyno with the 19x12s. I don't know how much the 19"s take over the stockers but their a lot heavier. You home tweek?
02-03-2013, 11:30 AM
#57
I noticed the slight valve float past 6000rpm that no one else did in this thread aside from Tooley or Geoff which is why you got those 3/8" push rods most likely
I always push the 3/8" push rods to guys that are doing set-ups like this. Makes a world of difference. The extra vaccuum probably helped also.
Very stout numbers! I love this combination and with all the guys screaming square port nowadays just goes to show you that the cathedral port stuff still has it!
I always push the 3/8" push rods to guys that are doing set-ups like this. Makes a world of difference. The extra vaccuum probably helped also.
Very stout numbers! I love this combination and with all the guys screaming square port nowadays just goes to show you that the cathedral port stuff still has it!
