Japchatters @ Vmax8?????
Discussion
Gazboy said:
Its true, once you start to get into biggish figures (150mph+) your covering distance so quickly that unless your car has huge grunt & acceleration then getting proper big boys figures is nigh impossible. Doesn;t mean your car is slow, just that the 600bhp monsters will always disappear.
E.G. the NSX I'm certain would go faster but being a 5 speeder when you shift 4th - 5th (about 125mph) you'll drop momentarily out of VTEC, where the real power is. Car takes a while to haul back into VTEC and just as its pulling well you hit the timing guns. personally I think its a 165mph motor car, no more - but still not bad for a "mere" 3.0 n/a.....
Likewise, top in the Supe, is a smidge tall, and it doesn't surge again until you are ontop of the timing gear.
I suspect you may well be onto something. Top end of 4th is an indicated 140 (it gets there sharpish but is likely to be ~130 irl). Changing to 5th at that point will drop me just out of the main powerband...
Guess we'll find out on Sunday.
Im interesting to see what you get Iain, as at the moment I think you have similar power to mine unless you find loads on the mapping session.
Last time I drove just on track at Brunters I had to pull 5th for a while, so I recon youll get a decent speed.
I dont know the setup though, if you get a bend to run out of exit speed will make a big difference.
Last time I drove just on track at Brunters I had to pull 5th for a while, so I recon youll get a decent speed.
I dont know the setup though, if you get a bend to run out of exit speed will make a big difference.
Pulsatingstar said:
Im interesting to see what you get Iain, as at the moment I think you have similar power to mine unless you find loads on the mapping session.
Last time I drove just on track at Brunters I had to pull 5th for a while, so I recon youll get a decent speed.
I dont know the setup though, if you get a bend to run out of exit speed will make a big difference.
Doubt the mapping will find much but may improve the torque curve a little and will definately give me pasce of mind for the runs.
Er, think the Chim would have thrown a rod by then!!! All mapped up now. Damn good job too - was running critically lean for 4th gear runs. It'd have been a miracle if you guys hadn't found out what an FD sounds like on 1 rotor!!!
Turns out the fuel pump wasn't up to the job so I now have a nice shiny Skyline pupm in place. Unfortunately couldn;t get it to run nicely on 0.9bar of boost, need colder plugs for that (9's are too hot so it looks like 11's all round in future), stuck with a measly 0.8 bar.
293.4 Hp and 237 ftlb torque.
As that figure is at the wheels it's about 350 in manufacturer speak.
Did get over 300rwhp on higher boost but the spark was breaking up so decided to play safe.
Now, where's that Chimaera...
Turns out the fuel pump wasn't up to the job so I now have a nice shiny Skyline pupm in place. Unfortunately couldn;t get it to run nicely on 0.9bar of boost, need colder plugs for that (9's are too hot so it looks like 11's all round in future), stuck with a measly 0.8 bar.
293.4 Hp and 237 ftlb torque.
As that figure is at the wheels it's about 350 in manufacturer speak.
Did get over 300rwhp on higher boost but the spark was breaking up so decided to play safe.
Now, where's that Chimaera...
tuttle said:
Now, where's that Chimaera...
Good one Iaint! Will look forward to hearing about this duel.
The fuel pump,is it the GTR 2 stage jobbie? Noisy b@st@rds at startup arn't they.Still it'll certainly supply enough juice to keep yer rotors happy!
The invoice says it's an Apexi BRN33 pump... not noticed any extra noise from it over the induction kitt and exhaust though...
trackdemon said:
Trackdemon- 160mph
Smiffy - 154mph
Gazboy - 153mph
Iaint- 153mph
PDR- 152mph (he was in an Esprit).
These aren't the official speeds btw.
Not bad for a "mere" 276bhp.......
From reading a few threads on here it does sound like you know your stuff on track. How much do you think the speed carried out of the bend is affecting the result? Because seeing stuff like this makes me want an NSX even more
iaint said:
iaint said:
Now, where's that Chimaera...
Big yellow thing in front of you on the horizon...
No-one likes an ungracious winner. Git
anyway, ths chim is a small yellow thing on the horizon on a tow truck. ;P
PMSL
Sounds like you all had a good day,which is the big thing
-still we don't want to give the TVR fraternity too much to gloat overGazboy said:
Did you get it sorted Justin? Still selling it?
Yup, all sorted mate, New Coil, Leads (race ones being made for me this evening, cheeky mechanic asked if i wanted to see the spark - Ala maxpower
) and Suppresors, Brakes are being finished off as well - they were a bit spongy all day ... Its up in the classifieds if you fancy a change
tuttle said:
No-one likes an ungracious winner. Git
anyway, ths chim is a small yellow thing on the horizon on a tow truck. ;P
Sounds like you all had a good day,which is the big thing
All of Iains upgrades will be in vain as the Chim may not be in attendance at the Next Vmax,
A Cerbera on the other hand may be ;p
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