Quote:
Originally Posted by GOAT8U2
Nice, sounds like you got the converter issue figured out.
In that thread post what changed, like loosened it and now leaving at like 4000rpm? 1.35 60ft is great, also update on there what tire you're running, Slick or Drag Radial?
With Paul K in here, I'm sure things like...
Cam size and LSA (I'm 110LSA)
Compression (11.7)
I'd gamble us tighter LSA guys need more timing and then the even higher compression cars with the bigger LSA need less timing up top.
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Yes the converter is working great. Its different, you have to really stab the gas to get the tires to spin. But it sure hits the tires hard. Makes me kinda wish I would have ran the 8" at 36 deg timing. Bet it also would have worked well.
I run a 30" tall 10.5 wide MT Pro Bracket Radial and they are fantastic. Never going back to bias.
Today the car developed a issue. Had a little miss, couple pops right before I shifted. Ran a 10.33, little better than the day before. With a 1.36 60 foot. But that run I lost the fan belt and did not realize it and it got hot. Water pouring out of the overflow on the return road. Got up to 260 deg but the engine still cranked fine. Glad I have .006 piston to wall now.
It still had 1.36-1.38 60 foots but the ETs slowed a tad. The popping got worse the next few runs. I though it was just because the fuel cell got down to 1/4 full. Filled it up and got worse. Last pass it was bad enough I just backed out of it and let him go. sucked because I wasted a .003 light.
So I loaded it up and took it home. Thought since it got kinda hot maybe a plug or two had a issue. Well, they all looked perfect, BUT 3 of them were loose. Like put the socket on by hand and they turned. Not backed way out, just loose. I checked the gap, put a little Never seize on them and the engine immediately fired up. sounded great.
Hope that was it. But it did not pop unless it was under a pretty good load so its hard to check. I will run the valves this week just to check everything but iI do not expect to find a thing. They were all very close when I set them last week.
I guess I was just a little too cautious tightening the plugs. To tell you the truth the threads did not seem all that clean when I first put the plugs in. Not terrible, just not great either.
The 1050 I had built for this thing is going on, last race so I am going to run it. The intake is a 4500 but I have a 4150 carb on so there is a little miss match. # 2 plug is always a little wet., might be a fuel distribution issue ? Maybe the Dominator will get me the MPH I am after.