went to the dyno

-
cuda20

cuda20

Well-Known Member
Joined
Mar 16, 2009
Messages
1,546
Reaction score
153
Location
Chilliwack, B.C
Finally put my cuda on the dyno yesterday. After a timing change and rejetting the carb a few times the final results were 424 hp at 5200 rpm and 638 pounds of torque at 3000 rpm at the rear wheels. Not bad for a pump gas 499 ci motor that sees lots of street duty. Might make a cam change to get more hp but I think I'm going to try a 150 shot of nitrous first. The car is nice to drive with the mild cam thats in it now, 282/288 525/540. The nitrous would just be for race days.
 

Attachments

  • P7110057.JPG
    77.8 KB · Views: 363
  • P4060022.JPG
    95.9 KB · Views: 360
I bet it's a short shift with low of hp peak, but easy to red line that much torque.lol

Does it hook?
If you do go bigger on the cam, look at 297-300* duration cams for that much cid
I bet thats a fun ride right there.:burnout:
 
I would go with the 125/150 shot instead of a cam change.

1: alot easier to do
2: you get to keep it the same streetable condition that it is in now.

I like your thinking about for race day only. Get to the track change the plugs,adjust timing, add some race fuel and you are racing. Done for the day, put street plugs in, put timing back and on the road. I have a buddy that using the juice on his HUGH Buick Roadmaster wagon. He has added some bolt on stuff to the LT-1 and runs 14.10 on motor. He added the 125 shot and took the car to 12.99(once) but mostly 13-13.05's. Heck he even has a pic of the left front off the ground. Not much but there is daylight.

Oh buy the way, that is one ugly car. You have to be embarressed to be seen it that car. So this is what I am willing to do for you. I will trade you even up for my Chevy Aveo. You are getting the better of the deal. Performance,gas milage and a hugh chick magnet. Hey that is just the kind of guy I am, always willing to help out. I agree with 412 Stroker; that is Mag worthy.
 
Thanks. It dosn't hook on the street but is lots of fun. On the track with 10.5 slicks it do's. 11.0 at 121 mph. The 373's hold it back some but I'm hoping now that it's tuned up to see some high 10 sec passes.When on the dyno they found 10 hp and 50 pounds of torque. And of course all numbers are through full 3 inch exhaust.
 

Attachments

  • P7110058.JPG
    57.8 KB · Views: 331
ha that one sexy car what tires are you running i run indy pro from micky tompson hook great and wear realy good to i was inpressed great numbers though.
 
I drool just looking in your engine compartment. Beautiful job!!!!
 
You got to show some build pictures of that car.Looks real nice. Mark
 
All the pics I took of the build were on my old computer which crashed. I don't know much about computers and didn't know you should save to a separate hard drive. Now I do.
Robert the tires are 275/60/15 MT drag radials.
 

Attachments

  • P7110057.JPG
    48 KB · Views: 302
Just be careful with the spray. That thing's got to have a high cylinder pressure already to make torque like that. Just be aware of detonation threshold, spark plug heat range, and timing.
 
Nice car!Seems to be plenty torque to get the job done.:burnout:

Personally I,d go bigger cam,nitrous is looking for :bom::roll:
 
Beautiful - looks great and runs great.

I'm w/ DartCuda1, we need to see some more pics of the build.
I want to see the full 3" exhaust myself.
 
Great looking car and awsome numbers. If you do run the spray then make sure you run an msd so you can retard timing. Spray works well if done correctly if not Boom. 150 shot is pretty tame nowadays. Good luck and have fun out there.
 
That really is a beauty.I've been admiring it from afar so to speak..........11 second 1/4 milers are ,IMO only.......plenty for the street. NICE ride...........mine is almost done and will post pics soon. NOT as nice as yours but much better than when I bought her, Can't wait to get it on the road....legally lol
 
First off, BEAUTIFUL car! I would DEFINITELY do a cam change instead of N2O. Your engine already makes over 200 ft#s of torque more than your HP, which tells me your cam is WAY too small....unless you meant to build a truck motor.

The N2O will add a lot more torque than HP (and you already have a boat load of torque). I don't recall the exact numbers, but something like a 150 shot will give you an extra ~250ft lbs of torque.

I'm not trying to step on your toes, I would just hate to see such AWESOME potential go down the drain.

Dave
 
Flyfish your right about the cam being to small. I think the head and intake porting have a lot to do with the high torque numbers. I remember another member posting numbers on his BB stroker that sounded very similar to mine. He had less compresion and no head work and it made 548 hp at the flywheel. I don't remember excact torque numbers but less than 600 pounds at the flywheel. So well I don't want to lose the driveability of the car I agree a bigger cam is needed to bring the hp numbers up.
 

Attachments

  • P7110057.JPG
    77.8 KB · Views: 140
It has a tci built 727 with a 3500 stall. Car is a original 383 4spd but numbers motor is long gone back in the 80's. The fenderwell headers have been in it since then. I was going to fix the holes and run chassis headers but in the end kept fenderwell headers and just had them ceramic coated. When I put the new motor in I took the 4spd out just because I race it some and didn't want to deal with parts breaking. I posted one pull on youtube under mrcuda20. The trunk is open so one guy could sit in it because it spun the tires on the first pull.
 

Attachments

  • P7110057.JPG
    77.8 KB · Views: 119
You must log in or register to reply here.
-

Back
Top