one for the racers

[Viper]

this is floating about on the websites form this weekend, one of Jason Heffners prepped vipers with a 6 speed gearbox

166mph @ 9.07



the fastest time I've ever seen



>>> Edited by Viper on Monday 29th November 20:44

[stevieturbo]

The spells one shitload of traction somehow, more so given its a manual.

Must be one of the quickest manual cars ive heard of, and Im not just referring to Vipers..

there arent many manuals getting below 10s, let alone almost getting into the 8's

What sort of spec is it ?

[Viper]

its running a twin turbo, change the wheels and its street car


http://vca2.viperclub.org/forums/showflat.php?Cat=&Board=UBB14&Number=475235&page=0&view=collapsed&sb=5&o=1&fpart=1

www.viperalley.com/showflat.php/Cat/0/Number/441904/page/0/view/collapsed/sb/5/o/all/fpart/1

www.viperalley.com/showflat.php/Cat/0/Number/442398/page/0/view/collapsed/sb/5/o/all/fpart/1

[venom500]

If he,d got rid of the wing then maybe it could have reached the 8,s!!!!Oh,and that rad doesn,t look standard?One fast mother!

[Viper]

The same guy has just done this afternoon in Florida

1.42 @ 60 ft
131 mph @ 1/8 mile
8.88 @163mph

The final of the www.v10nationals.com is this weekend also in Florida, so more fast times to come

[Viper]

http://almondexotictransports.com/images/NewWorldRecord.mpg

here's the vid, 9.5 meg, rear wing missing and words pinched off the alley site by Jason Heffner


I have been asked numerous questions regarding the set up in Chad's car. While it would not be wise for me to answer all of the questions I will answer some of the more obvious ones.

1. Are we using traction control?
Yes, we are using the traction control function in the AEM computer. Obviously it is not possible to put all of the power down and it is too difficult to consistently pedal the car down the track. At this level traction control is a must and the recent passes made by Chad's car would not have been possible without the AEM ems and it's traction control feature.

2. How come the car picked up 7 mph in the 1/8 mile but slowed down overall?
Information retrieved from the on board data logger, also a feature of the AEM ems, indicated that there was wheel spin in fourth gear and the traction control system reduced power which resulted in lower mph. We feel that in ideal conditions we have the capability to run over 170 mph. Only time will tell.

3. How has the car run almost 167 mph in fourth gear with the stock rear gears?
Obviously this is not likely. With the 3.07 rear end gears we were not able to make it to the end of the track without exceeding the effective rpm range of the engine. Therefore we have installed a set of 2.73 gears in the rear end. What kind of top speed do you think this thing would have with those in there?

4. Does the car still retain the independent rear suspension?
Yes the car does still have the Dana 44, factory suspension, except for shocks, and halfshafts.

5. Are you still running the factory T-56?
Yes the car still retains the factory T-56 but has been upgraded with cryogenically treated internal parts to reduce the chance of breakage. This transmission is available through Heffner's Performance to whoever would like one.

6. Do you still have to use the clutch to shift the transmission?
Yes, this car still retains a synchronized gearbox, this should be obvious to anyone who has seen the video. Had we installed a clutchless "dog ring" model, I would not feel comfortable calling this a street car as it is my understanding that they are virtually undriveable in street applications.

It is my understanding that some others have these "dog ring" gear boxes on order in hopes that this is our secret. I regret to inform you that this will only ruin a good street car and turn your ride into a real racemobile, happy grinding. It is also apparent that everyone is wondering what we have done to make the car run this way. Unfortunately, as long as people are attempting to duplicate what we have done, you will always be one step behind. In order to outrun Chad you will have to design your own "better mouse trap". I would like to see others be more innovative rather than to copy what others have already done. Our initial goal was to beat JKracer's 9.45 six speed record, had we used his car as a blueprint, how could we expect to be any faster that him? If others feel that they do not have the ability to be innovative, feel free to attempt to duplicate what we have done, just be prepared to be one step behind. I apologize if I have come across as offensive or "cocky" to anyone as that is not my intention. I would just like to continue to see Viper performance continue to rise and perhaps a few different combinations. Should anyone not wish to develop such a combination, you are welcome to call 410-766-2800 and order one for yourself. This is available as a package and there are several more in the works. I hope to see some of you at the track this weekend, have a safe trip.




>> Edited by Viper on Friday 10th December 07:31