Sounds good mate, personally I would be "that" bothered about the prop and diff issue. Go and let it have it and if it breaks fix it, no point trying to run good 1/4 mile times if your going to nurse it off the line IMO

Its a extremely well specced car, if certain parts aren't upto it change them rather than keep buying tyres that may or may not be any good. I'd expect to see this car deep into the 10's with that power as I'm sure you do so get it sorted !

Not a dig just looking at you buying tyres when realistcially if you want to prove its fast fit something fit for the job, 11's isn't quick by todays standards and certainly doesn't show its full potential.

 

Not a great example but this was my mates old Vette against a Supra, thats on a ancient diff and single leaf spring setup which did end up breaking on several occasions so he eventually fitted a 9" rear and it went straight into the 9's.

PB with stock diff was 10.1 @ 134, tyres are MT street's, power was 533hp off gas with circa 300hp shot of gas. 11.8 off gas and thats far heavier than a Supra.

http://www.youtube.com/watch?v=w1itjKDpQqk

I love your car Karl but I really wish you would just get it up there and let it have it, the cost of a good diff and prop is really fook all in the grand scheme of things and thats if you even need it, don't always take what people say as gospel IMO, that vette running gear is apparently very weak yet it ran for 3 or more years on it at that power before he started to have issues.

With that much power your car must have huge potential

 

i fully understand what your saying mate but ive wasted no cash on tyres, its primeraly a road car so r888s are for that, ive now bought rims and tyres for drag better suited to the job, i was nieve thinking i could do road and strip on 888s anyway tbh.
i can buy the diff and prop now 10 times over its not about the cost, the issue is the diff is brand spanking new but being small case worth naff all to resell so i want some use out of it before i give it away for peanuts.
there is no question the car is capable of a 10 on the right setup.

mainly im in no rush first time out in 3 weeks so will be good to try and get a feel of it, nothing serious about it just enjoy it, i was fully prepared at road launching in the skyline but when i hit santa pod it was completely different surface and my launches were crap lol

 

Thats cool, there is no reason why your car still can't be fine on the road and good up the strip, we simply drove the Vette to the pod, let the tyres down and Nick gave it everything.

Typically after it broke the same thing twice he fitted 2 proper shafts and on the next attempt snapped the ends off both of them on his 1st launch It was at that point he fitted the 9", funny how the original shafts and diff took the abuse for so bloody long ! clearly weathered well through the years ha ha

I hope the new tyres work out well for you, I'd love to see you give that 6k and side step the clutch

 

it will come mate, if i do get excited and brake it theres all my family and a few friends coming up for the show and to watch me so therel be hands about to help me get it off pod premises and ring the aa lol

 

Bitchy

Steve

 

i have also just read that the earlier bigger case diffs require a different prop and shafts, so i cant upgrade my prop on current diff as it wont fit the bigger one when i change it
i only fancy buying 1 at £1000 tbh lol

have also found a ford 9" diff converted by boostlogic with bigger shafts that a dirrect fit but it cost £5000 fit and forget though i suppose.

 

The replacement parts Nick fitted to that Vette ran to about 2 grand and they lasted 1 launch, the 9" and link setup was 5k and would take upwards of a few thousand hp so definitely fit and forget !

 

its something i gotta decide either early big case and prop or go whole hog on 9", if big case gets jamiep in the 9s though without breaking i guess thatl proove its more than adequate for my car

 

just got a bit of a bargain, looking on ebay and saw 2 275/40/17 mt et streets they have 3mm left so got some proper drags for the 17"s now aswell, just covering myself as the nittos are a big tyre, hopefully not too big so they rub but its gonna be a tight fit for sure

 

We tried the Nittos, Mark ripped them to shreds during launches simply fell apart, the pictures made a Calendar that i have here somewhere.
Dunlop DO1J were simply the best we ever found & all our rather impressive accleration figures were achieved with those. I hope the Nittos work better than they did on mine .

 

which size and type nittos where they rod ?
you got me kinda worried now, they cost me a bomb

hopefully it wasnt these

http://cgi.ebay.com/ebaymotors/2-NEW-305-40-18-Nitto-NT-555R-Drag-Tires-40R-18-305-/300348319919?pt=Motors_Car_Truck_Parts_Accessories &hash=item45ee27a8af

there £480 delivered and il no dought get raped by the customs lot aswell lol

ive done 0 - 100 in 7.3 on the r888s so anything above that will be good.

 

I am sure they were BF Goodrige drag radials.

Mark

 

The man has spoken im wrong . I just remember the huge chunks of rubber on the start line .

 

just remember if you get a descent 60ft your terminals will be alot lower,just stick the drag radials on mate,im on standby if you need a driver as im car less lol

 

i dont see they will be lower mate, ive spoken to rob at rips about this and a few other people, at the time of the conversation robs best 60ft was 1.1 seconds and in the same run did his quickest 1/8 mile mph @ 150 then onto his highest terminal mph @ 181. if you get the best 60ft humanly possibly then youd have to be attaining the highest speed possible as quick as possible which would then in turn give the highest terminal aswell.

iirc your 9.7 was in the 140s wasnt it ?

the whole run comes into play aswell doesnt it, all the gearchanges and shiftpoints etc.

in the skyline on my best run i yielded my best 60ft and my best mph in the same run




will be good to have a go in the supra and get a feel for the car on the strip, wont be launching like you do yet though mate

why you carless whats happened to the mk2 ?

 

if you ran a 1.9 60ft and say 145mph ,if you did a 1.6 60ft your terminal will be lower and also your time will be probably 0.5 secs quicker,i did 143 mph at 9.7 but i have also done 145 mph with a 10.0 and a 2th slower 60ft ,its all about the 60ft if you can get that as low as you can and obviously complete a good run ie gear changes and keep it straight you will achieve your time,some cars run 9s with low 130 ish mph its all about how long it takes from a to b.grip being the main issue lol

 

Mk2 was sold about 6 weeks ago ,so looking to do a new project

 

all things equal through the run but with a quicker 60ft would yield a faster terminal imo, as with a quicker 60ft you have gained a faster speed in a shorter time, you must of done else it wouldnt be quicker, my view is when a slower 60ft sometimes yields a quicker terminal its gained or lost somewhere else in the run not the 60ft area.

il just grab 1 of the replys i got from rob about 60fts and terminals


Well there's been whole threads on the subject and I'm still on the fence with this one.

I have been as low as a 1.10 60ft and ran my highest 1/2 track mph (150) and full track mph (181) with it although with slightly slower 60fts the mph wasn't effected much at all but it definatly didn't go up for me.


Seeing as you win races with R/T and ET and ET is directly related to the 60ft thats where I concentrate my efforts first and if you get that right, the rest has a much better chance of taking care of itself.

Rob

 

whats your thoughts on new project then fella ?
anything specific in mind ?

 

From "some" experience of helping with that corvette through the years a tenth gained on the 60ft is worth 2 tenths at the end, power was rarely changed on the vette and the speed didn't often vary, when it went 9" the 60foot improved a lot and it went straight into the 9's, 9.9 @ 134mph from memory.

Speed would vary most due to the air quality or headwind etc

Lots of variables on a drag strip, more than your box of tricks can probably work out.

It's all about real on track data, we were there every other weekend gathering what we could, it's got far more serious now with the camaro but same applies, it just happens a shitload faster ha ha

 

well it dosnt matter how fast you cross the line just how fast you get there

 

Exactly

 

very true mate i guess thats what its all about, on the first all il be doing is trying to get some 130 mphs. anything else will be a bonus

 

Just let it have it

 

just remember jonny ive only had the car 4 months, never been on track with it yet and its a £30k car not a £3k sierra

 

I Know that mate and you should know I'm taking the piss.

 

i know mate thats why i put smily face

 

ive shyed away from launch practicing in the supra, as in just launch preparation for pod in the skyline i destroyed a twin plate clutch

and then got to pod and was still shit

one thing i learnt though is just get used to it at pod as its diifferent to on rough tarmac.

 

Thats the thing, whatever you learn on the road will differ some what at the pod.

To run well at the pod you really need the correct tyres for the job, especially with that much power !

 

i hope ive done right in the nitto dr, there the only 27.5" tyre i could find to fit my rims.

i guess some 15" rims would be best just a pita as rear brakes are 330mm 4 pots so would have to keep swapping them over.

as long as they all get delivered before 1st october il have 295/30/19 r888s, 305/40/18 nittos and 275/40/17 mt streets, hopefully nittos will be all i need but the missus will be there in the estate so il have all wheels there with me.

 

Depends what line lol

 

well all the tyres are here

the nittos are frickin huge, its gonna be tight there 27.6" wheels !



il get them on the rims saturday and try them out up the track if its dry

they feel proper soft to touch should aid my grip

 

Tidy, what time will it realistically achive? (Apologies if its already mentioned)

 

id hope 11s and in the 130s for my first time out

 

But the diff & prop are only worth £50 so give it death its only money

 

just the carbonetics lsd in the diff is £1000 mate !

if i can just get it right i could get off the line with some clutch slip fairly good, just hopeing the 18s dont rub as there the ones i want for gearing me up abit.

im planning on 5k revs with abit of clutch slip, i have been getting major wheel hop in second gear on the r888s on the street at full boost 760 rwhp but nothing has broken yet so must be quite tough as it has been really bad a couple of times

the tyres certainly are tall so will give alot more than the 888s, sidewalls are 34mm taller and will be 10 psi lower pressure

 

With the power your's dynos, and those Nittos ( assuming 555R ) then you should have little difficulty doing a 10s run.

The difference in grip between them and 888's will be night and day

 

fingers crossed fella, they do feel mega soft to the touch, much more give than the 888s.

yes there 555rs thats the only dr i could find in 305/40/18, i just need practice now in the car, ive done a 2.1 on the 888s so hopefully il better that at pod, or maybe not lol

 

First time I used Nittos I got 1.8x 60fts and ran 10.5. That was some 5 years ago or more.

That wasnt even trying overly hard on a launch, and with tiny 245/50x16 tyres

As I say, there really is no comparison whatsoever. Ive only ever used 888's once at Santa pod, and TBH it was a waste of time. Mid 11's and still no traction all way through 3rd gear.