quote:Originally posted by beaver34
Watched the vid, goes well!
Cheers, when I man up a little I'll have another go at it with a helmet on and use the last 1000rpm. Wiring in the full throttle shift should
help save a little too.
Yeah, more revs from start too? I had to be above 5k in mine to get away properly quick,
It makes too much torque to hold it that high, at 3500rpm it had about 1.5 seconds of spin on initial launch. Just below where the torque starts
climbing.
It seems to be a bit of a black art getting off the line quick as so much seems to depend on gearing/engine/tyres etc.
quote:Originally posted by daniel mason
Thanks chris. Useful info there! How does the r500 manage to do it so quick then in around 7.5 -8 seconds with similar power? I suppose they are a
fair bit lighter than my mnr. also what diff did you run on your Indy? I'm using the 4.1:1 from the Honda with 13" r500 wheels and
a048's
Franky my motivation started to come back today when I fitted my stack oil pressure gauge and collected my modified drive shafts from Honda diff to
sierra outers! So might get to take it for a litte private road drive tomorrow!
I've a bit of a soft spot for stack gauges
Its an awesome motor you're putting together and i'm sure a little run would help with motivation!
3 Different cars, while the 7 shows to be the quickest to around 90mph, after that it struggles to hold a torch to the others, had the distance being
longer i'm sure the gap would've been a lot bigger.
S2000
370bhp/ton
60ft in 1.932 seconds
0-92 in 7.7 seconds and 1/8 mile
0-110 in 12.1 seconds and 1/4 mile
18mph acceleration in 4.4 seconds
195/50/15 tyres - S2000 6 speed gearbox and diff
Sprint R1
460bhp/ton
60ft in 2.093
0-93 in 8.2 seconds and 1/8 mile
0-113 in 12.5 seconds and 1/4 mile
20mph acceleration in 4.3 seconds
This run was on a damp track on slicks, having to lift significantly at one point during the run.
200/54/13 slicks - chain diff
RS6
270bhp/ton
60ft in 2.132 seconds
330ft in 5.553 seconds
0-88 in 8.4 seconds and 1/8 mile
0-111 in 12.8 seconds and 1/4 mile
23mph acceleration in 4.4 seconds
255/35/19 tyres - Automatic gearbox - idling at lights
quote:Originally posted by chris mason
3 Different cars, while the 7 shows to be the quickest to around 90mph, after that it struggles to hold a torch to the others, had the distance being
longer i'm sure the gap would've been a lot bigger.
S2000
370bhp/ton
60ft in 1.932 seconds
0-92 in 7.7 seconds and 1/8 mile
0-110 in 12.1 seconds and 1/4 mile
18mph acceleration in 4.4 seconds
195/50/15 tyres - S2000 6 speed gearbox and diff
Sprint R1
460bhp/ton
60ft in 2.093
0-93 in 8.2 seconds and 1/8 mile
0-113 in 12.5 seconds and 1/4 mile
20mph acceleration in 4.3 seconds
This run was on a damp track on slicks, having to lift significantly at one point during the run.
200/54/13 slicks - chain diff
RS6
270bhp/ton
60ft in 2.132 seconds
330ft in 5.553 seconds
0-88 in 8.4 seconds and 1/8 mile
0-111 in 12.8 seconds and 1/4 mile
23mph acceleration in 4.4 seconds
255/35/19 tyres - Automatic gearbox - idling at lights
[Edited on 28/9/11 by chris mason]
with 320bhp in a '7' you can get to 120 in about 10-11secs. Or 5 seconds quicker than a 550bhp m5.
quote:Originally posted by beaver34
Watched the vid, goes well!
Cheers, when I man up a little I'll have another go at it with a helmet on and use the last 1000rpm. Wiring in the full throttle shift should
help save a little too.
Yeah, more revs from start too? I had to be above 5k in mine to get away properly quick,
It makes too much torque to hold it that high, at 3500rpm it had about 1.5 seconds of spin on initial launch. Just below where the torque starts
climbing.
It seems to be a bit of a black art getting off the line quick as so much seems to depend on gearing/engine/tyres etc.
I tried a launch at 5500 the other day (similar car to Franky on T1Rs). The car basically just sat around for several seconds with the wheels
spinning... amusing but not the best start ever. I guess next time I'll try a lot less RPM.
with 320bhp in a '7' you can get to 120 in about 10-11secs. Or 5 seconds quicker than a 550bhp m5.
Yeah i can imagine that, the problem with a 7 though is aerodymanics, at some point your 320bhp 7 will accelerate slower than the M5 you talk about,
obviously this would be a some ridiculous speeds.
It's not too long ago that cec's had under 100bhp and becs just over 120bhp, the bar has been raised somewhat over the past few years,
there's now quite a few becs and cecs pushing 300bhp+ which helps overcome the relatively poor aero of the cars around 100mph.
At the moment though, yours and a few others are exception too the rule, with most people running 200bhp or less, this sadly means aero at 100mph is
still a factor.
While you can't say 0-100 figures and beyond are dull, the whole point of a 7 for me, is the lightweight ethos, the most fun (not quickest) i
had in a 7 from a track driving perspective was the Indy blade i built or the Road Runner SR2, both cars had 125bhp or less. The others, with
considerably more power, just weren't the same
with 320bhp in a '7' you can get to 120 in about 10-11secs. Or 5 seconds quicker than a 550bhp m5.
Yeah i can imagine that, the problem with a 7 though is aerodymanics, at some point your 320bhp 7 will accelerate slower than the M5 you talk about,
obviously this would be a some ridiculous speeds.
It's not too long ago that cec's had under 100bhp and becs just over 120bhp, the bar has been raised somewhat over the past few years,
there's now quite a few becs and cecs pushing 300bhp+ which helps overcome the relatively poor aero of the cars around 100mph.
At the moment though, yours and a few others are exception too the rule, with most people running 200bhp or less, this sadly means aero at 100mph is
still a factor.
While you can't say 0-100 figures and beyond are dull, the whole point of a 7 for me, is the lightweight ethos, the most fun (not quickest) i
had in a 7 from a track driving perspective was the Indy blade i built or the Road Runner SR2, both cars had 125bhp or less. The others, with
considerably more power, just weren't the same
We all thought i'd get the jump on it then he'd pull me in and pass, I think at 145+ he'd pull me in quick. V-max must be about
155ish with the car as it is(zero aero mods), it pull's very quickly to 145ish.
BHP is cheap now days so I guess thats why more cars are running silly power.
The best thing about the day wasn't the straight line stuff, the car's not dominated by the engine or straight line speed at all.
