130mph, 26" tall slicks, what diff gears should I have?

[ittwgn]

Yeah there are some traction issue's getting off the line, have to be carefull with the throttle application.
Might just go with some 90/10's in the front and standard fe2 springs and shocks in the rear. Maybe play with the shift points and limiter and see what I can get out of that......??????
Will post results.

hi as said see how you go !!!! you can if your not already!! run cross ply front runners with radials on the back!!! from my research and i,ve done it is said to be the most stable combo of tyres!!!! your not maxing out that tyre/diff combo yet mph wise so all the gains you can get in first 100 odd ft the better!!!! cheers

[vyls1wa]

Munroe low shocks will not work with taller (stock FE2) spring.

Ok, well In Saying that, how will 90/10s go with a little lower than fe2 king springs? My front struts are in Need of replacing and wanting 90/10s, is it a case of havin to replace all springs and shocks to use the 90/10s?

[dogsballs]

why do that? man, can borrow my radial front runners if you want.

the reason for the fe2 spring is that its relatively soft and will give a full extension on the 90/10, and with it set up high you will get the weight transfer. it may work with the lowered spring, but the FE2 is a proven performer. FYI this was my 1.53 launch on radials as discussed earlier, FE2 springs and shocks, about from pedders 90/10's.

[vyls1wa]

Damn!! Sold

[SirNemesis]

hi as said see how you go !!!! you can if your not already!! run cross ply front runners with radials on the back!!! from my research and i,ve done it is said to be the most stable combo of tyres!!!! your not maxing out that tyre/diff combo yet mph wise so all the gains you can get in first 100 odd ft the better!!!! cheers

I didn't think you were allowed to mix crossply and radial on the same car?

[zorro]

I've done it, upto 120mph it's not too bad past that though and it gets interesting. Banned on andra tracks although I ran at willowbank so go figure

[JezzaB]

ANDRA rules allow you to mix cross ply and radial down to 12.5 ET. Any quicker and you have to have both front and back the same

[skidmarx]

I have done a few......'miles' using a radial/rag mixture. Nothing wrong with it. Harden up australia!!

[ittwgn]

i can show you the email and reply from andra that cross ply fronts and radials are andra legal and as iiiiiiiiiiiiiiiiiiii said the most stable out of any setup!!!!!i,ve run 10.2 @ 134mph with et street drag radials on the rear and cross ply f/runnas on the front!!!! slicks on rear and radials on front are not allowed being unstable under braking etc cheeeeeeeeeeeeeeeeeeers radial rear c ply front yes!!! radial front slick rear no!!!

[TWISTEDW86]

Hmm I've been running 115mph hitting limiter at 7000rpm in 3rd in my ute with the standard 3.46 gearing on a 26" slick Best et so far is 12.60's and Its a 6 spd. Putting in 3.9s next weekend with a kazz centre according to the calculator on the first page I should be doing 137mph at 7000rpm in 4th that's if I can get it on limter in 4th across the line not sure what kind of et that'll run but it reckons 9.80s lol....

[ittwgn]

the thing is you and me can do all the calculations!!!! but unless you have the power to push the weight and the converter efficiency the rpm = mph and et just aint going to happen!!!!

[dogsballs]

Hmm I've been running 115mph hitting limiter at 7000rpm in 3rd in my ute with the standard 3.46 gearing on a 26" slick Best et so far is 12.60's and Its a 6 spd. Putting in 3.9s next weekend with a kazz centre according to the calculator on the first page I should be doing 137mph at 7000rpm in 4th that's if I can get it on limter in 4th across the line not sure what kind of et that'll run but it reckons 9.80s lol....

you running aftermarket tacho??

[cjf]

Could always buy one of these if you're "serious"

" MegaRaptor-2L " This is our 10 1/2 inch Billet Converter with a Billet Clutch Apply Piston that will not flex. It has a very large carbon clutch with 29.258 square inches of clutch lining. The torque multiplication rates can be ordered in 2 to 1, 2.5 to 1 or 3 to 1. The torque multiplication of this converter will deliver an increase of up to 50 horse power to the rear wheels. The MegaRaptor-2L with its carbon fiber clutch will withstand power levels of 1000 horse power. This 10 1/2 inch converter can be ordered with stall speeds of 2000 to 5500 RPM. Fits 4L60E, 4L65E and 4L70E transmissions, 1998 on with a LS1 type motor. Will not fit 2005 Corvette, Call. Cost $795.00

Do you have the contact details for the supplier of these converters?

[markone2]

the thing is you and me can do all the calculations!!!! but unless you have the power to push the weight and the converter efficiency the rpm = mph and et just aint going to happen!!!!

it's a triangle calculation...ie .....*imho* car set up beats brute HP each and every time.

368rwkw / 3.9 Diff Gears / Vigilante 4200 High Stall / Full street weight sans Pro lights.......Running 28" MT Drag Radials . ANDRA Race number 3106..driven to and from track...Willowbank Brisbane return.

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Edit , sorry brett SS...EFI logs have me crossing the traps at 6950rpm locked in 3..bit of TC slip there but the Vigilante does the job imho

[LS2CALAIS]

For reference, full weight VX calais on a 28" hoosier tyre, Koni adjustable/Lovells 'stiff' rear, standard FE2 front, 4.11 diff gears & TH400 auto i am crossing the line at 6700rpm & 123mph. 1.50 sixty footer