Converter multiplication ?

[L79racer]

I was talking converters to a few guys and they said that I should have told ATI my converter was going in a super stock car as they do some thing different to the multiplication in the converter. Any thought on this? Also, said to check out ultimate converter. Anybody using them and any thoughts or opinions over ATI?

[Alan Roehrich]

Yes, ATI has a new stator for Super Stock. And yes, you have to tell them the exact combination, fill the spec sheet out completely, and tell them what you're doing, so they can get the converter right. You cannot expect them to guess or read your mind and get it right.

[L79racer]

Originally Posted by Alan Roehrich

Yes, ATI has a new stator for Super Stock. And yes, you have to tell them the exact combination, fill the spec sheet out completely, and tell them what you're doing, so they can get the converter right. You cannot expect them to guess or read your mind and get it right.

I did have them set it up for my combo with all specs. I was told that they had a little different set up for super stock and was wondering if it would get a better 60'. I have a 5500 stall in it and I feel it doesnt leave hard at all. I am used to sticks thought. Here is the best pass so far.

[Alan Roehrich]

It looks soft, but without knowing more, it's hard to say why.

[Dave Ribeiro]

L79racer,

Talk to Lenny @ Ultimate Convertor , does a great job & his convertors really work .... You would be surprised at how many racers are using his stuff ... Lenny is also very easy to work with and very dependable .... Call him, you won't be Sorry ....
704-892-6837 .......

[Dragsinger]

I also like Lennie at Ultimate. A good Guy doing a good job.

In the Video I see a 1.40 sixty foot on the board. For reference, my Firebird does a 1.37 sixty foot with a 9.70 ET so you are close.

[K Stubbs]

Originally Posted by Alan Roehrich

Yes, ATI has a new stator for Super Stock. And yes, you have to tell them the exact combination, fill the spec sheet out completely, and tell them what you're doing, so they can get the converter right. You cannot expect them to guess or read your mind and get it right.

Actually you should send them the dyno sheet from "your" motor. They should ask you for this first before telling you exactly what you need. An off the shelf converter will just be a guess and filling out the form doesnt tell them how much HP your motor makes.

[1320racer]

ATI ain't ever seen a dyno sheet from any of my engines or for any of the converters that I have sold! What they got from me is accurate info/data and the results speak for themselves like my former 3880 lb ride that ran a best 60 foot of 1.28 and 10.07 @ 131 launched off the footbrake with a pump gas, cast iron oval port headed 468 under the hood backed by a turbo400 and 4.10 gear

[Alan Roehrich]

Originally Posted by K Stubbs

Actually you should send them the dyno sheet from "your" motor. They should ask you for this first before telling you exactly what you need. An off the shelf converter will just be a guess and filling out the form doesnt tell them how much HP your motor makes.

A dyno sheet is nice, but dynos lie. And you can't really race one. I've been selling converters for over 25 years, you do not have to have a dyno sheet. Believe me, they know what they're doing. I've sold probably 200 of their converters, and don't remember having one be too far off. There are no "off the shelf" race converters from ATI. Each one is custom built to an individual application, from all new parts.

[Adger Smith]

Alan,
I agree that a dyno can lie. The numbers are usually off from one to another. We ran a 555 the other day that was over 125 hp variation from the dyno it just came off and came to us. No excuses for it. running 2 days later in the very same air mass with the same headers. Just looked like a good salesmanship job by an "Name company" We have also had just the opposite happen. The two sheets matched real close.
Good converter shops know & can tell if you have a true dyno sheet.
Before we got our dyno Marv always ask us for the numbers over the phone. He was most interested in the 2 highet HP & TQ RPM's. How quick it "went over" (fell off) and who's dyno. He only commented once about the numbers.
Just said ugh! thats off 25 or 30....
I'm of the opinion if you have numbers share them with the converter shop. If not you should rely on their experience.