Dynoed today...sucks...:-(
02-16-2008, 06:02 AM
#21
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Speed density is the correct way to tune a FI motor...but you all know that now 
Your problem sounds a little like mine, except at a much lower rpm. Mine doesnt get bad til after 6000rpm.
How does it drive on the road ? Will it go beyond 5500rpm ?
Your problem sounds a little like mine, except at a much lower rpm. Mine doesnt get bad til after 6000rpm.
How does it drive on the road ? Will it go beyond 5500rpm ?
02-16-2008, 01:01 PM
#24
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I just checked my wires. They all ohmed 25-26 except for one. It was at 60, wiggled it the it read 80 and then 130. The crimp on one end was a little loose. Crimped it tight and it read 25..
Hopefully this was the problem. Too wet outside to go for a test drive...
Hopefully this was the problem. Too wet outside to go for a test drive... 
02-16-2008, 01:17 PM
#26
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02-18-2008, 07:23 PM
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went for a test drive, damn that scary fast, 3rd gear roll is crazy fast 
But the problem is still there..Not as bad though..Going to recheck the wires while there hot...edit...all the wires check good hot..I will probably buy another set just to try it... Runs real strong to 5500rpm then feels like a miss but keeps pulling..
Replaced the idler and there is still a bad squeak. Sounds like maybe the water pump... Squeaking from somewhere around there...
But the problem is still there..Not as bad though..Going to recheck the wires while there hot...edit...all the wires check good hot..I will probably buy another set just to try it... Runs real strong to 5500rpm then feels like a miss but keeps pulling.. Replaced the idler and there is still a bad squeak. Sounds like maybe the water pump... Squeaking from somewhere around there...
02-19-2008, 05:49 PM
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Haven't ohmed my wires yet, that's next on the list.......
I just ordered a set..Oh well, thanks though...I will let you know how it goes... 
02-20-2008, 08:57 AM
#37
Interested in the outcome also. I had the same issue. It would hit a brick wall after 4500-5k rpms and build about 5-8psi of boost max. Well changed plugs and wires and spiked to 19psi because I forgot to turn the boost controller down. Being we were not done tuning the #7 ringland did not like me.
So if you have the boost turned up then turn it down a lil.
So if you have the boost turned up then turn it down a lil.
02-20-2008, 07:30 PM
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Found the squeak,,,
went for a test drive tonight, about 10 mins into it the squeak got real bad, then the belt broke .. Luckily I was able to make it home..Jacked it up and spun all the pulleys by hand, the sprung tensioner I couldn't spin at all and the idler/manual tensioner on the head unit is real rough when you spin it..Wonder if the tensioner was sticking at high speed causing the sputter/surging...Damn, gotta pull the steering rack to replace it too
Chris
went for a test drive tonight, about 10 mins into it the squeak got real bad, then the belt broke
.. Luckily I was able to make it home..Jacked it up and spun all the pulleys by hand, the sprung tensioner I couldn't spin at all and the idler/manual tensioner on the head unit is real rough when you spin it..Wonder if the tensioner was sticking at high speed causing the sputter/surging...Damn, gotta pull the steering rack to replace it too Chris