Fast4door

My motor was dynoed at 453hp. Now that it is installed the motor revs fast in park. When in gear had you give it a mash of the gas no real power increase. This is hooked up to a 727 with the stock torque converter out of the slant 6. I have a new tci converter do you think this will help?????

RacerHog

Should....TCi 5,000 RPM stall.. And a 250 Shot of NOS... Now your flying!!!

Now give us the rest of the story.....
Welcome to the site....

No..Really... Whats the problem? Whats it in? What was the main Plan or goal you were looking for?

Fast4door

It's in a 72 dart! I was just wondering if it was possible the stock converter was locking up and holding back power. Thanks for the welcome!!! This is my first mopar

RacerHog

What Rear Gear dose it have in it?

Fast4door

355 suregrip posi

RacerHog

Needs a 3.91 Min..... Just to start out with.....

RacerHog

Where on the Dyno sheet (RPM) did that motor make 435HP

Fast4door

5100

Fast4door

Sorry it is a 904 not a 727

Fast4door

Isn't a 3.91 step for a street car I drive on the highway to a lot of shows. Only running on 26" tall tires

RacerHog

I'm Going to say Ya'll Need start out with at least...
3500 Convertor...
3.91 or 4.10 gear...
Depending on what your going to do with the car?
At the moment I'm going Street Car Hot Rod... Unless you tell me diff>

Fast4door

I just got a 3500 stall from tci they suggested that with my tire and rear end. It acts as if there is no kick down cable . Is there anything else I should look for?

RacerHog

Ok...Street Car... Now I'm with y'all...
Thats a bad deal...If it dose not have the detent linkage,,, it will burn up the trans, Unless the car has a Manuel valve body in it.

Fast4door

Fast4door

It has it and it's hooked up it just acts as if it not there. Shifts great just driving it normal

Fast4door

Thanks for the advise!!!!!!

RacerHog

ok...So when you drive it... Were dose it shift at?
1-2nd gear should hold to about 25 mph (Normal Throttle) and then your 3rd gear shift should be around 35-40mph

Fast4door

I would say that is real close I haven't drove the car in a few months .

RacerHog

No Problem on the info.... Your welcome...

Try making the detent tighter... lengthen the rod about 1/4 longer And go drive it. See if that helps...

RacerHog

Did you get this motor ready to run?
What did you set the timing at for the Total?

Mr.4spd

It could be something other than the engine/trans/reared. Could be sticking brakes or a frozen bearing or u-joint, I'd put it up on jack stands and check that everything rotates freely. I also remember reading that a 6 cyl torque converter behind a healthy 8 acts like a high stall to begin with, I think it was a low buck racers trick.