So I entered my car at the streetlegal drags in Drachten Holland Friday the 24 th.
Had high hopes on improving my times. Last year my best run was a paltry 14.45 E.T. although I was half asleep back then from the painkillers I had taken because of my backinjury and my nitrous sytem wasn`t dialed in yet.
Unfortunately the weather was far from perfect. Now and then some rainclouds came over, halting the event momentarily and limiting the amount of runs I could make.
On top of that there had been a professonal dragrace from the Dutch Explosion drag organisation one weekend prior to our event, so the track was covered with a layer of oil, sand and dirt mixed with water to annihilate traction severly.
I made about 8 runs, some in the wet, others on a partly moist track.
My first run:
View My Video14.10 seconds E.T at 167 km/h
semi slick 2.2 bar tyre pressure
launch control 3900 rpm
30% ramp up 6.5 second on minimax
200N/70F at 950 psi
window switch at 3000-7900 rpm
Lousy reaction time (0.881 sec) and I shifted a bit too early causing wheelspin in 2nd gear which cost me time.
This was my second run and my best:
View My Video13.90 seconds E.t. at 164 km/h tyres set at 2.0 bar
launch control set at 3900 rpm
30% ramp up at 8.5 seconds on minimax
200N/70F jetting at 950 psi
window switch set at 3000-7900 rpm
Massive wheelspin in 1st and 2nd gear, only in 3rd gear can I put the power down, but then the car goes like the clappers. I even have to shift into 5th gear right before the finish or the car will bounce upon the rev limiter at 8400 rpm. I might raise the limiter to 8700 rpm to stay into 4th gear.
My fifth run:
View My Video14.34 seconds E.T. at 160 km/h partly damp track
tyres set at 1.9 bar
launch control 3900 rpm
30% at 9.9 second on minimax
150N/60F jetting at 950 psi
window switch at 3000-7900 rpm
To do something about the wheelspin in 1st and 2nd gear I decided to lower the nitrous charge to a 75 bhp shot but since I optimised the pulsoids for the 100 bhp shot I think I messed up the PWM signals because the engine felt a bit lazy and I didn`t get rid of the wheelspin. Too much torque down low. I also set the minimax at a 9.9 second ramp up time but that also didn`t help.
My 8th and last run:
View My Video19.66 second E.T. at 120 km/h
tyres 1.9 bar
launch control 3900 rpm
30% at 9.9 second on minimax
200N/70F jetting at 900 psi
window switch 3000-7900 rpm
Did a few runs on a wet track but was all over the place on a nitrous charge so waited for the track to dry up. Went back to the original jetting.
By now I was so frustrated that I did all burnouts way past the staging sensor beams in an effort to make the tyres bite sufficiently for a better launch.
This was enough to piss off Kenneth the starting official eventually as I unsettled the electronic christmas tree logic sequence each time.
He came at me, opened my door; "one more time fella and you get a red code"! Whatever that may be lol.
I couldn`t be bothered as I noticed my car started to stutter down the straight. My bottle was empty, so was finished for the day.
So all in all had a good day considering the circumstances. Bettered my personal time to 13.9 sec E.T. but I feel there is still much more left in it.
The problem is now that I now have too much torque down low causing me massive wheelspin in 1st and 2nd.
I also need to do something about the wheelhop on launch. Perhaps some traction bars will alleviate this problem.
I`m open to all ears if anyone has a few good tips and tricks on how to improve my times further.
Cheers,
Paul.