Finally -- Dyno numbers for my Twin T-67's
05-30-2006, 09:50 PM
#1
Finally -- Dyno numbers for my Twin T-67's I know this is not normally posted here, but a lot of the other racers normally do not go the Forced Induction Sectioin.
Joey (from Excessive my sponsor/builder/tuner) was going to send me final dyno numbers, but I was able to sneak away for the last pull.
821rwhp with only 15lbs of boost, 23 degrees of timing, had to end the run early - when the turbos got into their range - it liked the 15lbs - it blew the tires right off.
NO TRACTION ON THE DYNO ??? It happened. Could not get it to stay stuck on the dyno wheel.
Based on our previous numbers with basically same engine... rwtq would have been close to 1k rwtq. The dyno just didn't like that high of numbers.
A/F maintained 11.5-11.8. Plugs looked great through all the pulls. There is no doubt, we can pull 1k rwhp on 18-20lbs of boost. It would be a matter of getting the tires to stop spinning. All the charts were basically the same as the 1st one. Peaks about 4500rpm's and maintained to until let off. Just a few items to finish and than to the track.
Joey built and tuned one hell of a hot rod for me. If everthing stays on track, Sunday is a go for its maiden voyage. I think it will be my learning curve more than the SS
Here's the 1st dyno pull on waste gates 8lbs of boost
And a short video of the SS's 1st start up
http://sio.midco.net/davidb/InitialStartup.wmv
David
Joey (from Excessive my sponsor/builder/tuner) was going to send me final dyno numbers, but I was able to sneak away for the last pull.
821rwhp with only 15lbs of boost, 23 degrees of timing, had to end the run early - when the turbos got into their range - it liked the 15lbs - it blew the tires right off.
NO TRACTION ON THE DYNO ??? It happened. Could not get it to stay stuck on the dyno wheel. Based on our previous numbers with basically same engine... rwtq would have been close to 1k rwtq. The dyno just didn't like that high of numbers.
A/F maintained 11.5-11.8. Plugs looked great through all the pulls. There is no doubt, we can pull 1k rwhp on 18-20lbs of boost. It would be a matter of getting the tires to stop spinning. All the charts were basically the same as the 1st one. Peaks about 4500rpm's and maintained to until let off. Just a few items to finish and than to the track.
Joey built and tuned one hell of a hot rod for me. If everthing stays on track, Sunday is a go for its maiden voyage. I think it will be my learning curve more than the SS
Here's the 1st dyno pull on waste gates 8lbs of boost
And a short video of the SS's 1st start up
http://sio.midco.net/davidb/InitialStartup.wmv
David
05-30-2006, 10:36 PM
#4
Thanks. Will do Coach. It was last Memorial Day that I did the bumper draging crap that basically ended my season. I got to race only 2 weekends in October. Almost a year. I can't wait.
Here's the chart on the 821dyno pull and than the video
VIDEO
http://sio.midco.net/davidb/821.7dynopull.wmv
David
Here's the chart on the 821dyno pull and than the video
VIDEO
http://sio.midco.net/davidb/821.7dynopull.wmv
David
05-31-2006, 09:49 PM
#7
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David,
Dayumn, that sounds sweet 
. I notice the left headlight assembly is already shaking with either fear or anticipation 
Be careful, take your time getting used to all the new power, and let us know how things go!
Derek
Dayumn, that sounds sweet . I notice the left headlight assembly is already shaking with either fear or anticipation Be careful, take your time getting used to all the new power, and let us know how things go!
Derek
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I should give You my license plate 
[CRZYPWR] 
06-01-2006, 07:30 AM
#13
Originally Posted by Villain281H
David,
Dayumn, that sounds sweet . I notice the left headlight assembly is already shaking with either fear or anticipation
Be careful, take your time getting used to all the new power, and let us know how things go!
Derek
Dayumn, that sounds sweet . I notice the left headlight assembly is already shaking with either fear or anticipation Be careful, take your time getting used to all the new power, and let us know how things go!
Derek
David
06-01-2006, 01:42 PM
#17
Originally Posted by CHRISPY
Awesome numbers man!! How is spool time with the twin 67s?
Very quick. By the numbers Joey was pulling, usually built boost by 3500rpms and full power by 4500. BUT it really starated get into it power by 6,200rmps. On 8lbs (waste gates), looks like it built full boost by 4500 and maintained same hp until let off. The last pull (821 pull) seemed to have just getting into the power band at about 4500-5000 when it blew the tires off.
David
