NB1 with GT2860R at 12.5 psi.
#1
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NB1 with GT2860R at 12.5 psi.
Here is the dyno sheet from today.
I plan to hit the nearest 1/4 mile track on Sunday on my skinny little 195's... will post up time slip after.
Keith
I plan to hit the nearest 1/4 mile track on Sunday on my skinny little 195's... will post up time slip after.
Keith
#3
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Yup! I have more dyno sheets in my build thread, including a comparison between the M45 in stock form and my setup now... more torque from the turbo from just off idle to redline.
https://www.miataturbo.net/build-thr...tenment-80371/
Keith
https://www.miataturbo.net/build-thr...tenment-80371/
Keith
#5
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Drag strip results!
Out of 5 runs I only got one clean pass, and that one was with slow shifting to get a clean run. First run I missed 5th, (passed reverse detent, had to come back and go up). Second pass missed 3rd. Third pass (these were back to back passes) I smoked the **** out of the clutch. Waited an hour for the clutch to cool off and recover a bit, then did my final two runs. Fourth run missed 3rd and 5th, but not as bad. Fifth and final run was clean, but I got a clean run by doing really slow 4th to 5th shift.
60' . . . . . . . . . . . 2.143
330' . . . . . . . . . . 5.8922
1/8th ET . . . . . . . 8.8682
1/8th MPH . . . . . 85.09
1/4 ET . . . . . . . . 13.5783
1/4 MPH . . . . . . 106.86
Keith
Out of 5 runs I only got one clean pass, and that one was with slow shifting to get a clean run. First run I missed 5th, (passed reverse detent, had to come back and go up). Second pass missed 3rd. Third pass (these were back to back passes) I smoked the **** out of the clutch. Waited an hour for the clutch to cool off and recover a bit, then did my final two runs. Fourth run missed 3rd and 5th, but not as bad. Fifth and final run was clean, but I got a clean run by doing really slow 4th to 5th shift.
60' . . . . . . . . . . . 2.143
330' . . . . . . . . . . 5.8922
1/8th ET . . . . . . . 8.8682
1/8th MPH . . . . . 85.09
1/4 ET . . . . . . . . 13.5783
1/4 MPH . . . . . . 106.86
Keith
#8
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what do you have for diff/engine mounts?
I found the delrin diff bushing/mount really reduced drivetrain movement (allowing you to hit your gears) and wasn't noticeable as far as NVH is concerned. It also helps prevent wheel hop from the diff/ppf slapping around.
I found the delrin diff bushing/mount really reduced drivetrain movement (allowing you to hit your gears) and wasn't noticeable as far as NVH is concerned. It also helps prevent wheel hop from the diff/ppf slapping around.
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With the 6 speed, shove it to the right and it is easy to go too far into the slot for reverse.
Keith
Last edited by Twodoor; 09-15-2014 at 10:07 PM.
#14
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I followed bad advice on my clutch choice (thanks again Stephanie!), so the wider tires may not improve my times that much, if I launch from a high enough RPM to be in boost I get clutch slip even with the 195's.
Keith
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Trap speed would have been 110+ with a good shift to 5th, you can actually see VSS drop substantially on the data log in the second between leaving 4th and engaging 5th.
Keith
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Here is the supercharger in stock configuration (around 5.5 psi) compared to the turbo at 12.5 psi.
Keith
#19
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You talking about a graph of the M45 at 9 psi? There is a whole thread about it here just a few spaces down from this thread:
https://www.miataturbo.net/dynos-tim...ent-e85-78527/
Keith