That's not my problem Micky!! Ha

 

Seems a lot of classics and big power Imprezas struggle with traction. I used to brag about leaving such cars at the traffic lights but now I understand the science a bit better. I have a sneaky feeling it's why the Nissan GTR is so heavy. There definitely seems to be a perfect power to weight ratio for the launch side of drag racing. Unless you're running big **** off drag radials. I just hope I haven't past it since my last RR.

Anyway did my last mod yesterday ready for this years 1/4 mile. I couldn't be arsed jacking the car up to do my gearbox oil change, so I bought an hand pump to extract and now I'm walking around smelling like sulfur. I used Millers NT, I don't notice any difference in acceleration but the car actually feels less powerful after 6,000rpm so I guess there's a change in the powerband that is only noticeable when the Turbo is running out of puff.

I'm not chopping at the bit!

 

if you can notice the difference a gear oil makes, i have to ask are you related to sterling moss by any chance ?
he could tell his pit crew a tyre was 3psi different

 

That's a VF35 for you, guessing that's what you have as most WRX owners but the better STi turbo on drops on its **** after 6-6.5krpm

 

Lol.

Matt how do you reckon they struggle for grip in big power classics? I got so much grip on sheared a drive shaft clean in half.... grip is not something I struggle with

 

TD05. It's probably the boost in torque I can feel that makes the top end feel sluggish. First time the oil has been changed in 83,000 miles and Milers NT gives impressive Torque gains (by all accounts). Car was wheel spinning too in 2nd gear which is very unusual.

Does yours have the 6 speed too?

SYKES, Paul; b. 23 May 1946, only son of Walter Sykes and Betty Barlow, market and shop retailers, wakefield, Yorkshire. Represented England and County at every amateur boxing level. Contested the British & Commonwealth Heavyweigt title as a professional. Holder of Distinction and bar, Royal Life-Saving Society. Qualified football referee. Holder of the British Amateur Weightlifting Record, Deep Knee Bend 5001/2lb. Much travelled in the UK Prison System: 25 transfers in 20 years to three prison regions, eleven prisons and three special wings. Educ: Snapethorpe Seconday Modern, Wakefield Technical College. City & Guilds Bricklaying 1966 and 1975. BA (Physical Sciences) OPen University (1982). HIS novel SWEET AGONY won an Arthur Koestler Literary Award in 1988.

 

Yes it does.

 

You need to get your car set-up properly then if you're struggling with traction.

In my SPEC C with over 600bhp, I never struggled with traction in reality.

On the 1/4m they tend to struggle with bogging down at the start. I always found issues with the more power I had, to get the 60ft low. When I was at 360bhp it used to bang out 1.6's to 60ft no sweat. I suspect the twin plate clutch that went in did not help matters much.

I have the opposite problem with my A45. Too much grunt, violent launch control and Haldex means the car has horrendous problems with 60ft times. The car just axle tramps violently. The best 60ft I've achieved on the strip is 1.80s..... this isn't great compared to what I could get in the Scoob. This is potentially losing me between 2-4 tenths on my ET's..... which is a real bind!

 

It's strange how it all works the more you look at it. Weight of car, ratios, power, traction.

There definitely seems to be a perfect power to weight ratio that is fully utilised at a certain launch rpm. This will be higher or lower dependent on gearbox ratios.

It seems to be around 260bhp per ton in an AWD car then upwards of that you have to launch at lower revs to get the same 0-60foot, the only other way is to throw a **** load of power at a car to make the time up once traction is found. Or make the car heavier.

I'd love to launch a 600bhp Spec C but I doubt I could do it at 6,000rpm. What did you launch at Shaun?

 

Launching is a fine art and takes practice but it's not particularly difficult.

What makes you think you couldn't do it?

You are forgetting rev limits to go with the ratios. The higher you rev the longer you have in gear and you will go significantly faster as I found out last time out.

I don't think power to weight comes in to launching, your launch strategy is where the time is made up. And I actually am finding that launch control is a false economy and you will go faster with a well practiced manual launch, you also have he option to change it.

With launch control on I was doing high 1.7s occasionally. With the launch control on I am doing 1.7s occasionally mainly 1.9, 5 out of 6 runs last time out were 1.72 or less with the launch control off.

Same as the flat foot shifting is a gimmick and I am going to get all of it deactivated when it goes in for a meth map.

 

Without drag radials I just can't imagine a 600bhp STI with a short ratio box could get a rapid 0-60 foot, to launch at 6k would need the clutch slipping to stop a burn out and it'd slip so badly it'd limit power back to that 260bhp per ton mark.

I'd be interesting to know if any SN users have hit 1.3-1.5 0-60 foot's without stupidly wide tyres.

 

Yes I've done a 1.4.

I'm sorry Matt but you really don't know what you are talking about. At 550hp in my stripped out 1100kg classic I never struggled with my launch.

I launch mine at 6k with a short ratio gearbox.

Go for a ride in a powerful car and you will realise how wrong you are...

 

Bob in if you're ever up sh*tty Yorkshire.

So how did you do the 1.4? 6,000rpm and sidestep clutch?

 

Ill try find the slip. Always welcome for a ride.

1.4 was just a perfect launch, short ratio box, 215/40/17 toyo T4R

 

I managed a 1.6 last saturday, with 11.5 pass, takes some doing, although i did 3 1.6's and a few 1.7's so must be gettin closer. Hoping to beat the 11.5 this saturday weather permitting. Launch is set to 4750rpm, on 225/40/18s with 420/435....

 

Wouldn't you be better off with 17s for reduced mass?

 

Matt, if you want to get your 60' and times in general down, you're going to need better tyres and a stronger clutch. Just stay with a 5 speed, but, get a decent gear kit fitted. PPG are good for about 400/400.

Not sure what clutch is/was in the Banana, but, I stalled the bastard 4 times. That clutch grips!!

 

...are your legs thinner than Stevens

 

What power and kerb weight you at Dan?

 

Sorry..... just seen the power on your post. Your car must weigh as much as a *** packet then!

 

Its the one at the services, was speaking to you before we got there. Its a stripped out STI RA with PPG kit, kaaz front diff, cusco rear diff, roll cage...



I would be better on 17" alloys, as its on Comp MO's which are heavy, plan is to drop to some lightweight 17's when tyres are needing changing

 

Il be at pod running my P1. Watch out

 

Yeah I thought it was your car... wasn't 100%.

Goes well then.

 

Havent seen it.... But if you see me gimme a wave...

 

Apparently so! Lol u there this weekend?

 

Nah..... out on the ****.

It will be rammed on the Saturday I suspect as it's the chav show on Sunday as well.

 

Fast show weekend, RWYB saturday, late strip til 8pm, then beer n bitches n show on sunday.... Lol

 

Will do. il be there early on Sunday. Hoping low 11s

 

Il keep an eye out for you. Fingers crossed i dont break anything saturday lol

 

Very impressive stuff. Thought you might have had 45's to lengthen the ratios out a bit.

I can't fathom it out but Classics seem to grip better than Newages.

Also Newage STI's tend to need 700bhp to get into the 10's and classics can do it with 500bhp, I know Classics are lighter but that circa 200kg is only equal to a 50bhp difference at max.

I'd argue that the extra 200bhp is making traction and gear changes tricky if it weren't for the fact a 700bhp classic is pushing 9's.

JGlanzas 6 speed set up just confuses me even more as I thought it was the Achilles heal of the Newage.