Back to the drawing board!

[Guest aw11]

nice run macka! this place needs a hall of fame for sure.

[macka]

Thanks Rev and Aw11

Im not sure whether i need those pineapples as im not getting the diff bounce the other cars are getting...oddly enough this time i managed a 2.23 60 foot.

What i do need is one of them 5Giken twinplate clutches paired with a lightened flywheel!....And a maybe 17psi

[rev210]

Originally posted by macka

Thanks Rev and Aw11

Im not sure whether i need those pineapples as im not getting the diff bounce the other cars are getting...oddly enough this time i managed a 2.23 60 foot.

What i do need is one of them 5Giken twinplate clutches paired with a lightened flywheel!....And a maybe 17psi

2.23 is still not a world beating launch mate even I managed a 2.1 on el'crapo 205's (didn't make the most of it cause the vacume line popped).

Have you installed the pineapples yet? Reducing diff bounce isn't the major reason you put pineapples on, wheel spin is.

BTW whats was the terminal speed, 660ft and speed and 1000ft time?

[macka]

Yeah i understand what u mean but last time i couldnt manage any better than 2.5 60 foot

Elapsed time 12.988

Terminal sp 113.35mph

60 2.25

330 5.79

660 8.59

1000 10.98

[GTS-t VSPEC]

Macka,

I bet both you and Hicks slept with your timeslips last night, have you had it laminated yet ?

See'ya

:burnout:

[macka]

Im still in shocked mode i tell ya!~

Yeah ive kept it in my pocket the whole time and just swap when i get changed

I have to keep looking at it just incase the times change :bahaha:

[puckish]

Macka you just opened a can of whoop ass.

Well done with that time.

[rev210]

Originally posted by macka

Yeah i understand what u mean but last time i couldnt manage any better than 2.5 60 foot

Elapsed time 12.988

Terminal sp    113.35mph

60    2.25

330  5.79

660  8.59

1000 10.98

113.35mph Damn!

That mph is fat enough to get the low 12's on street rubber, get yourself a 1.9 or 1.8 60ft and bingo!

You must have a nice mid range power band dispite the lowish top end power figure.

If you still have the top secret ecu for next time you could run a bit of toluene in the tank to get a jap like octane level and stop the timing retard.

[macka]

Explain toluene i thought it was cheap fuel?

I raced with 104 Nulon in it to be safe.

How do the bosch pumps go with toluene in it?

Well in my eyes i have a crap mid figure, i lost something like 20HP@wh when we retarded timing back from 20 to 15 degrees at 10psi

Go the pineapples still?

[GTS-t VSPEC]

Macka,

Toluene is the cheapest form of octane booster around, Service stations often used it in there fuels as it has not excise placed on it by the government. There was an article on octane boosters in an HPI I have so if you want to know more then I'll look it up.

Octane boosters are cool as you will be able to advance the timinig without causing the engine to ping, but if you use it often it will f#@% your spark plugs.

See'ya :burnout:

[Hicks]

Originally posted by GTS-t VSPEC

it will f#@% your spark plugs.

Uh Oh.......

[adam 32]

its only $20 to change em

[Guest aw11]

when running on the 'slicks' did you warm them up before the run?

[rev210]

Originally posted by macka

Explain toluene i thought it was cheap fuel?

I raced with 104 Nulon in it to be safe.

How do the bosch pumps go with toluene in it?

Well in my eyes i have a crap mid figure, i lost something like 20HP@wh when we retarded timing back from 20 to 15 degrees at 10psi

Go the pineapples still?

Toluene is THE best basis for a turbo fuel full stop.

Toluene was used during the 'turbo era' of formula 1. Back when they were running 5bars(73psi) of boost in qualiying and 4bars(59psi) in race!

The formula 1 fuels were limited to 102 RON so 84% toluene and 16%n-heptane (has no octane rating to bring it back to 102).

Toluene has a RON of 122 but more importantly the RM/2 is 114 which is freakin high.

A 30% mixture of Toluene with BP98 yeilds a RON of 106 but huge RM/2 of 103!!!

The main disadvantage of running too high a mix of Toluene is the cold start and low rpm operation if you don't adjust the maps and timing. Having said that I have sucessfully ran the above mixture of 25/30% in my car with only the factory ecu and I didn't bother changing the timing either.

If you want some the Makit hardware store next to marlows balcatta has some, diggers brand 1 and 4L tins.

Go the pineapples!

[GTS-t VSPEC]

Rev210,

Looks like you've been doing your homework, I read in an article that it will add about 2.5RON in a resonably safe mix, but is it going to be an advantage if you don't advance your timing? I thought the higher octance rating allows you to advance the timing safely, without pinging, but if you don't advance the timing will it make a difference to the performance?

Thanks for the info.

See'ya:burnout:

[macka]

Ok how much $$ ??

[adam 32]

wouldnt you be more concerned with the hassles of pre-mixing fuel every time you drive. shouldnt your daily driver (as most skylines here are) be one which can run on pump fuel, not a lab experiment.

[Guest aw11]

why don't they just sell better fuel??

[macka]

I think we are more aimed at Using this stuff down the drags

[GTS-t VSPEC]

Adam32,

I agree totally, I was only suggesting that toluene was a cheap octance booster, and would only really be using it for the drags, the extra cost of adding octance booster during daily driving would be pretty substantial.

Macka,

I think you can get enough toluene to boost 100litres of PULP to 101.3RON for about $48, I have the suggested mix in a magazine I read last night, once I get home I'll post the info.

See'ya:burnout: