CLASS RACER FORUM - TH 400 1st gear?

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Re: TH 400 1st gear?

Quote:

Originally Posted by Dano (Post 602947)

so much for defending stock racers as being snobby.....LOL

That's right . At least I don't have to take them to Camping World ..yet!

Re: TH 400 1st gear?

WELL- I’ve never been accused of being snobby before, that I know of. And I have absolutely no idea who Dano is if he isn’t cuffing anybody. I am just trying to to help somebody I don’t know make the correct transmission choice. I think I might be qualified to make that suggestion. You I don’t know about. So you can kiss my snobby but.

Re: TH 400 1st gear?

Quote:

Originally Posted by Painter (Post 602914)

Turbo 200 with 2.75 low, swap converter for one for a 200. Put the 400 in a pick up truck where it belongs. The fast big blocks are successfully run in 200s.

Ding Ding Ding we have a winner. Have it with a turbo spline. BP

Re: TH 400 1st gear?

Guys need to keep in mind that not every single stock class racer may be willing to spend $6,000+ on name built TH-200 or Pro Trans that is built to withstand a big block. I've priced both for my own car. I run a lightweight TH-350 in my car and find it hard to justify the added cost vs. the little gain in E.T. Personally, I see lots of other areas where that kind of money could be better spent. One could install top-of-the-line ignition and fuel systems, plus a data logger for that kind of money and probably have a few bucks left over. Just my .02.

Re: TH 400 1st gear?

Quote:

Originally Posted by Dano (Post 602908)

Have been told about the "fall Down" several times. Converter is a ATI 8" set up pretty loose. Haven't run it yet but anticipating a flash of around 5800-6000 rpm. I wish cost wasn't an issue, but of course it is......making the mistake on the ratio is concerning. Have been looking at the Coan LW 400 with the 2.48....and comparing with same trans with the 2.75. any way to determine existing trans 1st ratio? It's a Kilgore deal, recently freshened locally, but the trans guy said he couldn't tell and Kilgore "couldn't" locate original build paperwork.

A couple observations about your posts,
1) In your first post, you mention 5:14 rear gear. That's a bunch of rear gear for a car that should hit 125 MPH. You are going to need a really good BBC.
2) You stated that you already have the converter. The converter should be the last thing you buy, built to the finished engine/transmission/rear gear/tire combination.
3) There is a lot more to converters than stall. "K" factor, lock up potential, plus fin and stator design are all factors in the converters performance.
4) If you already have a real Kilgore, you already have an "expensive" transmission.
5) If you are looking at Coan, you are looking at an "expensive" transmission.
6) If your transmission was just open and your transmission guy could not tell what ratio was in it...well to be blunt, you need a better transmission guy.
7) If you have a real Kilgore, he has multiple ratios available.

Disclaimer: These are my opinions and not be confused with facts or snobbishness.

Re: TH 400 1st gear?

Quote:

Originally Posted by Painter (Post 602960)

What's "cuffing"?

BTW, the Snob comment was directed to only one post. To others that were actually trying to help, thank you.

Re: TH 400 1st gear?

Quote:

Originally Posted by Dano (Post 602911)

70 Nova.....B/SA....402", GM 401 Alum Head

Not for nothing with the combo you're running you better adjust your budget or change combos. The price of a TH-200 is going to be one of your lesser expenses.

Re: TH 400 1st gear?

Quote:

Originally Posted by Dean Feiock (Post 603121)

In response if I may....
1) car runs 122 mph with old converter
2) Converter matched to all you've mentioned
3) Above my pay grade right now
4) This I know
5) Coan is on the way (when referring to "expensive" I consider $ 6500.00 and up to be expensive)
6) You are correct
7) Again, you are correct

Disclaimer: When advised to get rid of my Motorhome Transmission, yes I considered that "snobby". Most of the replies I got were considerate/helpful as yours was.

Re: TH 400 1st gear?

Quote:

Originally Posted by Dano (Post 604064)

Disclaimer: When advised to get rid of my Motorhome Transmission, yes I considered that "snobby". Most of the replies I got were considerate/helpful as yours was.

Interesting that when told to keep the 400 for a pick up truck, (they did put them in 1 ton ,454 Duallys) , you're okay with that, but a motorhome? That's way over the top
It happens to be true, and just an extension of someone else's point .

Peace brother, and happy holidays.

Re: TH 400 1st gear?

Remember sec0nd gear is important in heavy car too. 3600 lb bbc wi 815 hp 2.75 low helped.