pasted below is a screenshot of 4 runs , one in 2010 with old engine [email protected]
and rest in 2017/2018 with [email protected]
inc the fastest 7.49sec pass. We have RPM, Driveshaft and trans pressure, and 1 accelerometer plot for the 7.49s pass. Trans pressure is bottom graph. Traction dosnt seem to effect pressures, even though it had difficulty holding the track on some passes, tyres are old.
To assist in reading each line is a second and each increment 0.2 sec...
@1.5s in 1st 199-215psi
@2.0s in 2nd 221-228
@2.5s in 2nd 270-303!!
@2.8s in 2nd 293-330!!!
@3.0s in 2nd 212-247????
@3.2s in 2nd 202-208????
@3.6s in 3rd 200-219
@5.0s in 3rd 200-217 and stays there till I back off.
The pressure builds after shift into second and goes high half way thru 2nd and then drops like a stone 1/2 sec before I engages 3rd. Is that just the time it takes after physical shift of trans to release band and clamp direct drum, or is it running out of oil?
Trans is great otherwise, but Iím busting pressure plates (have some steel Alto ones now ready to go in) standard trans mods #8
Torrington, E lever, R servo, 2.5Ē Kevlar band , extra friction in both.
Iím asking all this because ET and Weight says mph should be 180 odd on all calculators, but canít get there. Driveshaft rpm and trap mph say I have 7.5% converter slip. I can only put it down to losses in trans.
C6 valve body with full auto drive( not manualised nor reverse pattern or trans braked) just B&M Stg 3 shift kit mods.
Just throwing it out there for ideas.