Can It Go 9's?

JLear

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Still not there but about as close as it gets, DA was in the +1500-1900 range. I'll try it again soon!

 

bunits19714

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nice, I was wandering if you were still around- your 1/8 mph seems to be up a bit since the spring- little better da and you will be there.
 

psfracer

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Still not there but about as close as it gets, DA was in the +1500-1900 range. I'll try it again soon!


Are you seeing any belt dust? I ask because, with that mph (at the 1/8th) combined with the 60'--you should be in the 9s.

For a supercharged car to only gain 25/26mph from the 1/8th to the 1/4--seems like it should be closer to 30+mph difference. Just something to think about. Maybe its pulling timing?--but I don't see why it would if you are using MS109
 

JLear

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Are you seeing any belt dust? I ask because, with that mph (at the 1/8th) combined with the 60'--you should be in the 9s.

For a supercharged car to only gain 25/26mph from the 1/8th to the 1/4--seems like it should be closer to 30+mph difference. Just something to think about. Maybe its pulling timing?--but I don't see why it would if you are using MS109

I completely understand where you're coming from but I failed to mention that on every pass it spun just enough for the trans to short shift 2nd, I can only assume that the low 1-2 shift affected the acceleration all the way out. The early shift combined with almost 2000 da didn't make for ideal gains. Hoping for better results when the good air is here which should be very soon.
 
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bunits19714

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1.40,1.41 you cant being spinning much- and running109.5- in the 1/8th on the passes with the good sixties- I ran some 1.39 60's last night but the the dam trans hit the rev limiter ever gear change and was handicapped to 10.16's passes- the car would stumble so bad on the 1-2 shift that it would re snap the front tire just a touch. I am about to the point of putting in a t400 and say @#$& it, at least it will shift when I want it to
 

JLear

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1.40,1.41 you cant being spinning much- and running109.5- in the 1/8th on the passes with the good sixties- I ran some 1.39 60's last night but the the dam trans hit the rev limiter ever gear change and was handicapped to 10.16's passes- the car would stumble so bad on the 1-2 shift that it would re snap the front tire just a touch. I am about to the point of putting in a t400 and say @#$& it, at least it will shift when I want it to

It's not spinning bad at all, just enough to short shift 2nd. I'm going to experiment with different tires and see if he car does any better.
 

kdanner

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I completely understand where you're coming from but I failed to mention that on every pass it spun just enough for the trans to short shift 2nd, I can only assume that the low 1-2 shift affected the acceleration all the way out. The early shift combined with almost 2000 da didn't make for ideal gains. Hoping for better results when the good air is here which should be very soon.

That's exactly what I see in the splits, the 60-330 is lacking compared to similar cars. You look good the rest of the way. Get the 330 time under 4.10 like it should be and your car will run 9.80s.
 

bunits19714

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Awesome - congrats- still seems the mph is down ever so slight on the top end but great never the less, my last two track outings were a 125 and a 150 da, you would of been in the 9.80's for sure with that da. what tire are you on-
 

JLear

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Awesome - congrats- still seems the mph is down ever so slight on the top end but great never the less, my last two track outings were a 125 and a 150 da, you would of been in the 9.80's for sure with that da. what tire are you on-

The air temp was in the low to mid 50's and the track never really got real sticky, even some of the cars running big slicks were having issues. I had to go down to 13psi in the tires to get it to hook so I assume that could be a factor for the back half mph being down a little bit. Either way the et is what is most important to me lol.
 

kdanner

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Honestly I think that track's MPH must read low. Your 660-1320 time tells the tale, and it's less than 2 hundredths off what I saw on a 9.89 pass here. As good as your 60 was and then looking at your 330 I have to wonder if you still had a 1-2 short shift at least to some degree. I still think it will go 9.80s totally dialed in.
 

BMR Tech

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Good work JLear! Happy to be a part of it brother!

As KDanner said, I think she going to go some 9.80s if the tune-up and everything is on point.
 

JLear

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Thanks guys! I really wanted to go back one more time this year and see if the car could do any better but after seeing a few engines let go recently that are similar setups as mine I think I've decided to be content where it's at. For now..
 

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