The numbers are in-Not bad for an old Gen I - Feel free to comment !

[viperrt96]

My numbers are in! No more guesswork or speculation just the facts now!. Here are the results.

The rear wheel torque was 505/510 and the A/F was flat all the way across and running anywhere between 13.5 to 13.9. A little lean but not anything damaging.All I need now is some fine tuning. Sorry I cant post that info(yet). My run info was put on a floppy and Dynojets winPEP 7 (free software)will only display HP. The car actually made 10 more horsepower the hotter it got. It seems to transfer the heat well into the coolant rather than to the piston(combustion chamber). I can't say enough about how this car runs.

Here are my Runs at IRP last tuesday. It was HOT! around 90 and humid. I was trying different launching techniques. I just need some more seat time to get it(60') down. I have a lot of room for improvement.


R/T=.223
60’=1.980
330=5.159
1/8=7.789
MPH=91.97
1000=10.007
1/4=11.890
MPH=120.00

Not bad! I'm pretty excited to have my own car with me driving it in the 11's. I'm pretty sure I got 20 to 30 more tuneable horsepower to achieve. Along with me getting better I think I have a shot of getting this car in the mid to low 11's (maybe the 10's) yeah right.

 

[STUGOTS]

wow nice #'s congrads

 

[Casey 111]

What mods do you have?

 

[RedEnuf93]

Send me the data, I was able to pull all info from my charts, maybe yours too??

 

[vette2viper]

Nice numbers. Reaction time looks real good.

 

[viperrt96]

RedEnuf93, I'll send them to you tomorrow when I get to work. Can you save it and send it back as a jpeg? I had 5 runs so I posted my last two. They were consistent and the car was running 200 degrees.It made more Horsepower/torque when it was running 200 than it did at 170(first pull)

The mods are head work (kept stock valves) port/polish,combustion chamber reworked, .060 off,compression 10.5:1,Borla headers(old style),Sean roes high flo cats,randomtech 3" exhaust,GenII cam(708),degreed in(advanced),Harland Sharp 1.7:1,accufabs 65mm TB's,DC's 3"inlet tubes w/modified box,Intake runners raised and match ported to the heads,Stock ECM and stock 26lb injectors.

I got to thank Dan Cragin at DC Performance for giving me excellent technical advice and parts.He always takes the time to answer all of my dumb questions. Thats nice when he is 2000 miles away and still takes the time. I also like him because he is one of the only tuners (That I can tell) that seems to still work on the GenI's. He has posted some impressive numbers for the GenI's. Of course I'm talking about all motor and NO power adders(nitrous,supercharge). I wanted all motor. looks like I got it.

 

[Casey 111]

That definatly is quite a bit of power but when i read these lists of mods, i cant help but think it should make more. Makes you respect the 600+ hp cars even more.

 

[viperrt96]

Not really, I've seen stock genI's (I'm sure there are exceptions)Dyno 380 to 390 at the rear and plenty of GenII's(stock)Dyno anywhere from 410 to 430 at the rear.
Dodge (as most do)advertise horsepower at the crank. I'm sure someone can educate me here but the formula is somewhere between 10-15% drive train loss to the rear wheels. So 500 at the crank would equal to about 450 (10%) at the rears. Anytime any engine can make 1 horsepower to every cubic inch that is doing pretty good. So vipers (GenI,GenII) are 488 cubic inches. So if you can get over 500 (and it's streetable) you are doing pretty good. I've not heard of any viper that is getting 600RWHP (motor only-no supercharger or nitrous)

 

[98MODMTR]

I've not heard of any viper that is getting 600RWHP (motor only-no supercharger or nitrous)

There are no stock 600rwhp n/a vipers? Or no modified 600rwhp n/a vipers?

 

[jp]

I'm sure you can get more out of that combo. My Gen1 did 11.80/120mph with stock engine, Belanger Headers and 3" exhaust... So with your mods and a decent 60 foot will you probably be in the mid 11 and trap/123mph

One of my Vipers (Gen1) pulls more then 700 at the crank, Et is usually 10.70/130.

 

[viperrt96]

I'm sure you can get more out of that combo. My Gen1 did 11.80/120mph with stock engine, Belanger Headers and 3" exhaust... So with your mods and a decent 60 foot will you probably be in the mid 11 and trap/123mph

One of my Vipers (Gen1) pulls more then 700 at the crank, Et is usually 10.70/130.

WOW 700 at the crank. No nitrous or supercharging? Let me guess....It's an alcohol motor, right? Thats got to be a blast to drive

 

[Jeff Lemke]

Nice.

Jeff

 

[Viper Scot]

Anytime any engine can make 1 horsepower to every cubic inch that is doing pretty good.

Really? That's a specific power of only 61bhp/litre! The Nissan Sentra that I used to own had about 70bhp/litre stock. The new BMW M5 has 100bhp/litre. A Honda S2000 is about 120bhp/litre. Another Nissan I had (albeit a turbo car) had about 180bhp/litre.

 

[Viper4Christ]

I've not heard of any viper that is getting 600RWHP (motor only-no supercharger or nitrous)

In that case talk to "fat albert" in AZ, he's a real nice guy and good to deal with. Also if you have between 30 and 45K to drop on a motor he can crank you out an ALL MOTOR Gen 2 from 800 to 1000+ HP... yeah it's possible