right im going to have another go at the 1/4 mile this weekend


i made a cunt of launching it last time it was either lighting up or bogging down

ive not had much use of the car atal in last year

but im going to give it a go,im going to try and just ease it off the line then load it up once moving rather than rev it to 6k and drop the clutch

so question is i dont hold up any hope for a decent 1/4 time but im intrsted in what sort of speed people reckon i should be hiting the line at?

 

what's your power now?

with 420bhp i was hitting about 117mph, with a severe lack of traction off the line.

 

mine is 417@wheels......................and severe lack of traction lol

 

I'll guess at 123mph.

12.8 1/4 mile


If i'm right send me cash.

 

cheers for your vote of confidence mate but doubt il get into the 12s

 

you will mate, for sure

I struggled like fook off the line in mine, the tyres just didn't like the surface i think (they would grip and launch fine on the road lol)

I think my 60ft times were 2.6 and my 1/4 was 13 dead....the extra power you have should see you get in the 12's, unless the surface is shite, or your tyres are pony.

 

a think about a 13.3 and 130 terminal

 

my old saph done low 12's at crail with around 420bhp(flywheel), but that was 4x4 so got a good launch, terminal speed was 120ish, dunno if that realy helps any

 

no chance at 130mph terminal speed, you'll be spinning the wheels to much for that, and for anybody that dont know crail it has a terrible surface

 

crail is terrible surface

decent tyres though

i done a13.03 in my first 4x4saph stage 3 greens etc on the standard t3 but that would launch lol

 

i'll be there on sunday anyhow mate so i'll be cheering you on

 

sound mate

 

Just feed the clutch in slowly at 4000rpm.

With your power you should see 120mph terminal.

Steve.

 

think the van cross' the line with high 120mph's

no traction issues

 

i though the van was 4x4?

 

it is thats why it didnt have traction issues only 386bhp to

 

i though you meant it was 2wd when you mentioned traction
thats ok then, just me confusing myself again
never mind me

 

lol i would nee bigger better tyres if it was only 2wd
think it would just swap ends lol

 

thats what had me thinking,
more like need a miracle not bigger tyres, we know how good 2wd's are at handling eh lol

 

if you're not in the 12's, you can't drive or there's something seriously wrong with your car. I managed a 13.121@107 with 100bhp less than you in my old 2wd saff. I'd hope it'd do a 12.5 at least at about 120!

 

less power means its easyer to get off the line though & in a 1/4 mile the first 60ft is where the time is made or lost

 

As a very rough guide I always say approximately for a 2wd car:

200bhp- 100mph terminal
300bhp - 110mph terminal
400bhp - 120mph terminal
500bhp - 128mph terminal
600bhp - 135mph terminal
700bhp - 140mph terminal

I know there are all kind's of exceptions but that is a good general guide for a normal road going 2wd car.

 

hows the car going col?seen it at ava the other week, must have just been a couple of days before you picked it up....

 

My old 500bhp Saff with Mr. Shead at the wheel ran 12.1 @127mph at the totb qualifier in 2003. Its PB was a 11.8 with a similar terminal.

My 650 conversion managed an 11.5 @ 138mph but on 200mph gearing & tyres at 40psi during a 0-200 mph run.

Will be circa 150 terminal now but not much quicker ET as the old girl aint set up for it.

 

Karl's estimate on a 650bhp rwd car is EXACTLY the same as yours got with that power then Rod

 

cant drive???? or something wrong with the car?

neither mate but crail is defo not santapod in tarmac

 

sounds about right rod thanks il try my best

 

its going really well scott cheers mate,it still needs the low throttle maps sorting out but full throttle ones are spot on,pity i cant get good traction as its like a train when it gets going in 3rd

 

sounds like the opposite to me then mate, car ok at low revs as its on running in map, i'm just needing the full throttle done now :-(