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-   -   t stop thoughts/debate (https://classracer.com/classforum/showthread.php?t=27952)

Ed Swearingen 08-26-2010 03:44 PM

Re: t stop thoughts/debate
 
I just can't tell you how much fun it is to get passed at the finish line by 35 mph+ and see that .89 pop up in the other lane!

Bill Baer 08-26-2010 04:55 PM

Re: t stop thoughts/debate
 
Quote:

Originally Posted by Ed Swearingen (Post 206299)
Y'all know my thoughts on the subject! Get rid of all those big motors and get "Adjustaflows". It's been working for me since '84.

Careful Ed, you'll piss a lot of people off with that kind of heresy!

L.O.L.

sst7250 08-26-2010 10:52 PM

Re: t stop thoughts/debate
 
With the car set up with a lower down power number I have been 159 and change at 10.90 a number of times. All out the car has been 168. I wish I could find a good set up to not loose the MPH I do. But the car is not dialable(is that a word)set up that way ,at least for me but it can go 159 at 10.90. One thing for sure in Phoenix my t stop set up was NOT the way to be doing it on that track that weekend. Last S/ST race I ran at Infineon the car was running 153-4 with over 5 seconds in the timer. DA's were -50 to 600' IIRC. Hard to run fast when I am on the stop at 4100 that long. So tell me please what the secrect is. I have watched your car a ton of times trying to figure out that magic set up :) Give me a break that Infineon Divisional was my FIRST ever S/ST race. Thought I did ok we are still trying to figure this stuff out for sure.

Cant keep it running that that long, TOUCHE! Jeff you got me there for sure. The again I dont have anywhere near the cubes at 500" that some do. Motor had 228 passes on it when we pulled it out. About 1/2 wide open shifting at 8300, but only going through the traps at 7450(no gear). Had a freak failure for sure. The Roller that was in it went soft, I run a roller cam bearing and one of those bearing surfaces on the cam was flaking. Scored cylinder walls and was wreaking havoc in general. Last time the car was out was on Memorial Day at Infineon with the cam going south I went 11.04 at 152 with timer one at .000 and timer two at 4.87. The next pass was more of the same and the car should have been faster. Did some poking around and decided to just put it away and freshen it up to try and make the infieon race. Well we pulled the motor down then and just now getting it back in the car. I simple freshen up ended up being a reinvention after finding the roller cam had gone soft on one of the bearing journals. So new pistons, to address a longevity issue, this motor was from a heads up small tire car and never really set up for a ton of laps. We added some more material under the pin, new rods, and a new cam, rings and bearings. Hopefully we did not give up to much power with a new piston that is heavier but for longevities sake it is the right thing to do. Biggest issue was the cam, kept me out of the fun all summer. Trying to get/find a core when you run a 55MM cam, ina Big Block Mopar, that has a 4/7 swap AND all 5 journals being 55MM is not easy to do. So we will see what it will run son enough. We seem to think that the piston deal is gonna cost some power but not sure how that will translate to MPH on track. If I can get off the stop sooner it SHOULD go faster maybe, but time will tell.

Can I help if I like to go fast? :) Wish I could figure out how to go as fast as that Mustang can, I think I do ok for a 2885lb Super Streeter. Then again maybe I should go back heads up small tire racing. Can always dust that thing off and go run 7's all day long....

sst7250 08-26-2010 11:18 PM

Re: t stop thoughts/debate
 
Quote:

Originally Posted by JJ3159 (Post 206113)
my rpm is 3800 on the stop ,guy from one stop told me its what the car can handle without stumbling

Well when I tried to go to 3600 and then 3800 my car would have an occasional issue coming off the stop .We settled at 4100 as it seems to be happy there, at least not doing any funny stuff coming off the stop. Although it really comes up slow on the power til about 6000. My motor does not make much power down low. Peak HP is at 7700 and peak TQ is 6300. I cross the stripe at 7150-7200 now. Going to throw some gear at it before we come back out and see what that does to it as well as a fresh albeit down on power a little engine does.

CBS jr 08-30-2010 09:40 AM

Re: t stop thoughts/debate
 
Al... come on you raced more super street then that i've seen you at more.

sc7667 08-30-2010 04:12 PM

Re: t stop thoughts/debate
 
What is the MPH difference between a linkage stop and a plate stop? I have heard anywhere from 2-5 MPH, but htis was third party. I would like to put a plate stop on the car, because they are more consistant, but can't afford to loose too much speed.

Chris Williams 08-30-2010 10:00 PM

Re: t stop thoughts/debate
 
Quote:

Originally Posted by sc7667 (Post 206845)
What is the MPH difference between a linkage stop and a plate stop? I have heard anywhere from 2-5 MPH, but htis was third party. I would like to put a plate stop on the car, because they are more consistant, but can't afford to loose too much speed.

I've dyno'ed with and without our Dedenbear TS6 (one of the best plate stops) and the difference was about 35hp. If you buy the rule of thumb that you need about 15hp per MPH, that's a little over 2mph.

sst7250 08-31-2010 12:37 AM

Re: t stop thoughts/debate
 
Jeff, honestly last year at Infineon was my first divisonal race in Super Street with the Barracuda. Before that I ran my Duster once in awile, but it was nowhere near as fast as the Cuda. It was a 130 car on a good day and we had a issues to say the least. Still trying to find a couple more mph CONSISTENTLY. Gonna throw some more gear at it while it's apart and see if that makes any difference. Would not mind getting a couple of mile per hour back but have had a hard time trying to figure out a good way to do it. Someday with lots of hard work I can only hope to be as good as you guys on here.

As for the linkage stop. I ran one on the Duster. I could not ever really get the car to run conssitent o n the stop. Probably as much a carb issue as the stop but I dont think I will go back to a linkage piece. Ik am sure they have thier place on an injected car etc but from my experience a plate seems much more consistent.

CBS jr 08-31-2010 10:25 AM

Re: t stop thoughts/debate
 
Al ... I was going 160 back in 2002 and 3. You still have alot to learn besides I'm running the slowest tune up i have.

Just remember it takes the hole package to win not just mph!!!!

sst7250 08-31-2010 11:24 PM

Re: t stop thoughts/debate
 
Jeff I agree I have a ton to learn, but I am trying to learn everyday..Oh yeah I was running 175+ in 02 and 03 :) But that was only on a true 10.5" tire at 3300lbs :)

You coming down to run in Bakersfield?


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