converter efficiency

Went to the track Sat. and took some # down and here is what Wallace racing Cals, say 15% slip on motor and 18% on spray don't think its very good would like 6 or 7%

That is horrible!

whats the flash? drop on the shift etc? a converter too tight can knock its dick in the dirt.

richter69 wrote:whats the flash? drop on the shift etc?  a converter too tight can knock its dick in the dirt.

oriental converter was a Art Carr 9 1/2" 5200 stall that i sent to PTC for a rebuild and stall change to 4500.. I had burnt the TCC up doing WOT lockups







































ptc

Is that 1/4 or 1/8?

whatbumper wrote:Is that 1/4 or 1/8?

!/4

More infor... 1952 F1 Truck 472 ci. stock bottom A429 heads kb pistons victor 950hp carb SF cam 258* @ .615 square
700r4 trans 4500 stall 3.89 gear truetrac posi #3900 with driver... Truck is a cruiser that I race at local track and Drag Week have 45 passes this year... Truck runs 11.50s & 11.60s @ 114mph most the time has been a 11.33 @ 116mph on twice same day... On nitrous 10.81 @ 126 is around the norm but did run a 6.71 1/8 on a couple 1/8 mile passes... the passes I checked slippage on were last Sat.... they were 114 mph 5900 rpms 30" tires 94" RO 3.89 gear 15.6% nitrous pass 126mph 6700 rpms 30" tires 94 RO 3,89 gear 17.85%

richter69 wrote:a converter too tight can knock its dick in the dirt.

Aint this the truth. Cant wait to get mine to the track and see what this new converter does.

Sounds a little loose, but no way would I only want 6-7%. In the quarter I'd shoot for around 10% without spray. Make sure you have all the right variables in your calculation. I'm guessing you're close and need a little work on the fin angle. Are you looking for consistency or all out speed?

Curt wrote:Sounds a little loose, but no way would I only want 6-7%.  In the quarter I'd shoot for around 10% without spray.  Make sure you have all the right variables in your calculation. I'm guessing you're close and need a little work on the fin angle.  Are you looking for consistency or all out speed?

The Truck is pretty Consistent but feel there is a little left... Send my old converter to Freak show see what happens

quick 52 wrote:

Curt wrote:Sounds a little loose, but no way would I only want 6-7%.  In the quarter I'd shoot for around 10% without spray.  Make sure you have all the right variables in your calculation. I'm guessing you're close and need a little work on the fin angle.  Are you looking for consistency or all out speed?

The Truck is pretty Consistent but feel there is a little left... Send my old converter to Freak show see what happens

I'm sure he'll tell me what it looks like. Keep us informed.

whatbumper wrote:

quick 52 wrote:

Curt wrote:Sounds a little loose, but no way would I only want 6-7%.  In the quarter I'd shoot for around 10% without spray.  Make sure you have all the right variables in your calculation. I'm guessing you're close and need a little work on the fin angle.  Are you looking for consistency or all out speed?

The Truck is pretty Consistent but feel there is a little left... Send my old converter to Freak show see what happens

I'm sure he'll tell me what it looks like.  Keep us informed.

Converter should look new it was in the truck only a 1/2 mile and pulled the lockup doesn't work. Had a few converter shops work on it but still isn't right hope Freak show can fix it

I wasn't necessarily speaking of the condition but rather the setup.

whatbumper wrote:I wasn't necessarily speaking of the condition but rather the setup.

Its a Art Carr billet 9 !/2" that I have never run... bought it off a friend and had vortex converter rebuild it lockup wouldn't when I install it so call vortex and he told me my trans was the problem try to tell them my spare converter worked find also a Art Carr 9 1/2" .... So I sent it to PTC they worked on it and said it was find still lockup sent it back to PTC they tried again but no lockup... been using my other Art Carr converter for a couple years lockup works fine we'll see what Freak show can do

I've already spoke to Michael. He called earlier about some other stuff. He'll shoot you straight.

whatbumper wrote:I've already spoke to Michael.  He called earlier about some other stuff.  He'll shoot you straight.

Whatbumper should i mention you when michael calls. ups said it would get there tues.

That would be good.  Michael and I work very closely together on a lot of stuff.  We are a dealer for him as well.

Justin M.

Would switching to Hytran or a similar hydraulic oil have any affect on converter efficiency?
Gary

GTmustang wrote:Would switching to Hytran or a similar hydraulic oil have any affect on converter efficiency?
                                                                                             Gary

not really. In some applications it changes the stall speeds but not all.

Been a week haven't heard from Freakshow guess i'll call tomorrow to see if he got the converter... Thinking I will go 3400 to 3600 stall and hope to be around 4000 on hose... what do you think #3870 with drive 3,89 30" tire 472BBF

Well called Freakshow he said that Monday he would open it up havent heard back yet guess ill have to call again

he hasn't returned your calls because you didn't include your number in the box. Please call him today.

He has found the issue with the converter and it's fixed. wasn't an art carr converter though unless it was built by Mr art carr himself in california so I hope this is the one you were thinking of.

whatbumper wrote:he hasn't returned your calls because you didn't include your number in the box.  Please call him today.

He has found the issue with the converter and it's fixed.  wasn't an art carr converter though unless it was built by Mr art carr himself in california so I hope this is the one you were thinking of.

Thanks for the post the name and number was taped to inside cover... But was able to talk to Michael and converter is going out Monday...
Thanks again
Dale AKA Quick 52

Well, I'm going to have to call him a dumbass now. Lol

Hope it works out.


After reading the stuff you posted above instead of calling him or me I just thought you liked posted everything on an open forum.

Hope to get the converter in next week end and out to the Track will give a heads up on how thing go