Let's talk converters
 

In particular 200 metric stuff, 305 in a Malibu. Not positive what is in the car but I do have an ATI that I can't get them to identify for me but.... What does this combo need in real world experience. I am thinking an 8" with around 5600 flash? Am I thinking too loose? I feel like 1-2 shift should be 6100ish and maybe 6400 in 3rd? What is in it now goes 5000ish but it came out of a 350 69 camaro(more inches and HP) Will a 7" be a viable option on this combo? I know the converter companies can answer most of this but I am looking for real world data. Also rear gear is a 513(may go to 5.38) and trans is 275 low

Re: Let's talk converters
 

My car is similar to yours, small engine and slower class, i shift close to 7k and finish at over 7k i have 4.88 with a 26 inch tire, i need to send out my convertor i am hoping they can get it to 6k on the flash but i don't know if that is possible because engine does not make much torque.

Re: Let's talk converters
 

You are right on track with 5600.

Re: Let's talk converters
 

Anyone have experience with a spragless converter? I'm looking at an 8 inch from Broader Performance and have that option. Car is a 68 Mustang 302 with N351 heads and C4. SS/CS legal but run in bracket. 4:29 gears (new gears) 26 in tire for now. Ran to 7000 really fast on it's only pass last year. Want to shift at 6000-6500.

Re: Let's talk converters
 

Yes it's slower spragless

Re: Let's talk converters
 

How much will I pick up, do you reckon if I change to a sprag converter?

I have a 3200 lb 23 degree sbc 3.875 stroke 4.185 bore with a set of out of the box Brodix T1 heads, I did change the springs before bolting them on the engine. 10 x 28 bias tire. All steel roll up windows and chrome bumpers. It has been 1.27 60 ft and runs in the 5's 1/8. Powerglide transmission.

https://i.imgur.com/1NpHcPW.jpg

Re: Let's talk converters
 

1/8th mile? Not much. Maybe nothing

Re: Let's talk converters
 

A tenth and a half slower in 1/4 mile. Stock eliminator 350 chevy with a powerglide Change the convertor at the track same day.

Re: Let's talk converters
 

Torque converters are like Pro Stock carbs, you can have two identical, one is faster than the other.

This goes for sprag converters too.

I've had sprag converters in this car, one actually ran about the same et as my best spragless. Almost.

Re: Let's talk converters
 

We run all 1/8 mile in Florida. I did run it to the 1000ft once, went 7.81, same as a big cu inch copo with a LS I was looking at in here few months back running 9.40's.140

Re: Let's talk converters
 

The farther you go down track, the worse the problem becomes with a spragless. The stator is just in the way.

Re: Let's talk converters
 

I'll buy two converters are not the same but,a couple hundreths not tenths apart.

Re: Let's talk converters
 

You just got a hold of a dud, for a head to head with a sprag converter which works decent. I've had a couple duds over the years sprag and spragless. It didn't tell me they're all duds.

It's pretty apparent I have a fast spragless converter. I had a fast TCI sprag converter years ago, I should've kept and made spragless.

Re: Let's talk converters
 

Mike not trying to be condescending or exclusionary here, but what you do ( not even sure what that is) is not even remotely comparable to about 98% of the cars in this section.

Re: Let's talk converters
 

I say it's apparent I have a fast spragless converter, assuming whomever reads it, can put two and two together. Not comparatively, and I don't mind you believe the myth on spragless converters but figured it could do no harm to share my findings. 23 sbc 3200 lbs.

Re: Let's talk converters
 

No Myth to believe.
Not disputing your testing, just your conclusion
I have never had a customer with a Comp car go fast with a spragless.
Years ago we did a lot of converter testing with an A/ED. (7 similar A-1 converters)
Best MPH and ET was not the spragless.
My SWAG is the two converters you are comparing are not built exactly
the same. The window or the stator back angle could be something different
between the two and your engine/gearing combination likes it.
IMHO converters are like twin sisters. They may look alike and be numbered the same, but they are a little different.

Re: Let's talk converters
 

I gave my opinion in post #7, and then tried to explain it further in post #11. At this point, you can believe whatever you want for now, in America.

Re: Let's talk converters
 

It's only logical experience guides my beliefs and not opinions based on no experience.

You won't find a faster 3200 lb 23 sbc in the world with a set of out of the box, off the shelf conventional 23 heads, on a 10 x 28 bias tire.

The beauty of it is, the driver built the engine,transmission and setup the gear.

That's what I do if you're still wondering, drag race.


https://i.imgur.com/1NpHcPW.jpg