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post #46 of 59 (permalink) Old Nov 28th, 19, 11:47 AM
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Alan
 
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Re: Torque Converter

Here is my new 8" ATI that was spec'd by Mark. The issue is that ATI discontinued using the lighter Opel GT 8" shell for some reason. Now the converters are a bit heavier.



I haven't track tested it yet, I'm planning on hitting the track in Dec or maybe Jan at the latest. I will say the converter is pretty loose in my car.....My car is heavy with only 3.36 gears so the converter "feels" pretty loose. It easily foot brakes to 3000. I haven't done a 3rd gear flash test (because my auto kickdown still works) but pretty much is never under 5000 rpms when you floor it....Even just half throttle around town sends it to 4200-4500 rpms.

I'm dying to see what it will do at the track. By my seat of the pants, I figure it will gain .05 in the 60', .1 in the 1/4 and probably run the same mph....But I'm hoping for more....

1971 Corvette
VortecPro 496"
T400, Tight 10" converter
3.36 gears, 3700lb raceweight
[email protected], 1.51 60'
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post #47 of 59 (permalink) Old Nov 28th, 19, 12:00 PM
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Chris
 
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Re: Torque Converter

If it was spec'd with the 3.36's, it should be ok up top. My Son, as I mentioned earlier, is using my "OLD" 8" Treemaster and was spec'd for my combo with 4.30's and he ran pretty good with it but probably would be better on the top end of the track with steeper gears.
He has 3.42's.
Big difference.

73 nova,3515#(all steel)Pump gas!(91octane)406ci N/A, best 1/4,1.45 '60,[email protected],10.6 @ 122.38, short shifting,NO tuning!


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post #48 of 59 (permalink) Old Nov 28th, 19, 12:46 PM
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Alan
 
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Re: Torque Converter

Quote:
Originally Posted by WHT/73 View Post
If it was spec'd with the 3.36's, it should be ok up top. My Son, as I mentioned earlier, is using my "OLD" 8" Treemaster and was spec'd for my combo with 4.30's and he ran pretty good with it but probably would be better on the top end of the track with steeper gears.
He has 3.42's.
Big difference.
Yes it was spec'd by Mark for my exact combo. I'm pretty sure its as tight as they get an 8". Its similar to a Buick/Olds/Pontiac Super Stock converter. Its MUCH looser then my 10" was. The 10" would flash to about 3400 and the car would go a best of 1.51 with that one. I would love to see a 1.3x 60' with this one...Not sure it'll get there but....as loose as it feels, I think it could. I just hope it doesn't slip too much in the traps. Shift recovery seems to be at least 200-300 rpms more...but I haven't got to really test it much yet. Only a couple of street pulls.

1971 Corvette
VortecPro 496"
T400, Tight 10" converter
3.36 gears, 3700lb raceweight
[email protected], 1.51 60'
STOCK APPEARING
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post #49 of 59 (permalink) Old Nov 28th, 19, 1:51 PM
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Re: Torque Converter

It always amazes me how just changing converters can make such a big difference in performance on a car. Just like my 8" TCI converter, works fantastick behind a SBC but is lousy behind my BBC engines.
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post #50 of 59 (permalink) Old Nov 28th, 19, 2:17 PM
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Dan
 
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Re: Torque Converter

Using an FTI 9 inch Spragless. It drops ~600 rpm's on the shift. What I like about FTI is their after sale customer service. In my opinion they are as top notch as it gets.
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'66 SS Chevelle

bored small big block
performance to be determined.
91 octane special.
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post #51 of 59 (permalink) Old Nov 28th, 19, 2:17 PM
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Greg.
 
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Re: Torque Converter

Quote:
Originally Posted by blasttime View Post
One quesstamate I have is from Hughes for a 10'' that will handle 1000 hp. + in either sprag or spragless design with stall in high 3000 range . 800.00 plus ride . Said 10'' likely will have less slippage at cruise and HWY .
I still be thinking and listening mostly waiting to hear from other venders.
I appreciate everyone's input thus far .
See my # 12 Post and Jake's # 20 Post is spot on for mine

the 9.5" Street/Strip Converter (3,500 to 6,500 rpm) that I had Dynamic Converters / Pro-Formance Transmissions
build for me is great and the cost was around $670.us
No Slippage at Hwy Cruise and on the Street I have seen 3,500 to 4,000 rpm Flashes
which makes the Tires spin a little then grip, the same Tires at the Track just grip and the old girl goes

I was worried about the new Reverse VB Trans running to Hot so put a Gauge on it
and it has never gone above 160/170* with a small Separate Trans Cooler
whether doing Back to Back runs down the 1/4 or in City Traffic or on the Hwy for 100 mile Trips

67 Chevelle Malibu SS Cdn
Born 283 / PG / A51
468/TH400 2,500 stall/ S60 3.70 Gs
Prev Best on M/T ET S/S #3454 street Tires/Dress 2018/05/20
60' = 1.664
1/8 = 7.532 et / 91 mph
1/4 = 11.814 et / 115 mph
NEW Best with 3,500+ Stall TC 2019/09/08
60' = 1.547
1/8 = 7.311 et / 91.76 mph
1/4 = 11.595 et / 114.28 mph


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post #52 of 59 (permalink) Old Nov 28th, 19, 3:33 PM
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Chris
 
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Location: Lincoln pk NJ
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Re: Torque Converter

Yeah I ran my 8" converter with just a external trans cooler for 5yrs and Matt just has one too on his malibu with no problems either.
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73 nova,3515#(all steel)Pump gas!(91octane)406ci N/A, best 1/4,1.45 '60,[email protected],10.6 @ 122.38, short shifting,NO tuning!


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post #53 of 59 (permalink) Old Nov 28th, 19, 7:28 PM
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MARK
 
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Re: Torque Converter

Quote:
Originally Posted by ShouldntBeHere View Post
Here is my new 8" ATI that was spec'd by Mark. The issue is that ATI discontinued using the lighter Opel GT 8" shell for some reason. Now the converters are a bit heavier.



I haven't track tested it yet, I'm planning on hitting the track in Dec or maybe Jan at the latest. I will say the converter is pretty loose in my car.....My car is heavy with only 3.36 gears so the converter "feels" pretty loose. It easily foot brakes to 3000. I haven't done a 3rd gear flash test (because my auto kickdown still works) but pretty much is never under 5000 rpms when you floor it....Even just half throttle around town sends it to 4200-4500 rpms.

I'm dying to see what it will do at the track. By my seat of the pants, I figure it will gain .05 in the 60', .1 in the 1/4 and probably run the same mph....But I'm hoping for more....
For the record, exactly as Alan ordered this converter ATI thought it would be a good idea to change the design of the case, I warned Alan about this, I was skeptical, after seeing the converter in his car and on the scale I'am not a happy camper, all I can say is I wish we could have waited, I now have the ultra trick converters being made by someone else other than ATI and have been extremely happy with the results. Its a shame ATI had to do this.

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post #54 of 59 (permalink) Old Dec 3rd, 19, 10:53 PM
 
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Give Cameron a call at Torque Converter Services (803) 754-8139. He builds converters for street/strip cars all the way up to Pro-Mods. He'll ask about your entire combination. If the converter doesn't do what you want, he'll open it up and adjust it for free. Guys around here swear by him. Just my $.02.
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post #55 of 59 (permalink) Old Dec 9th, 19, 4:52 PM
 
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post #56 of 59 (permalink) Old Dec 9th, 19, 7:09 PM
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Re: Torque Converter

Quote:
Originally Posted by jakeshoe View Post

Gotta love the guys with mustangs that have to run a GM engine to go fast. Converter works pretty good.
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post #57 of 59 (permalink) Old Dec 10th, 19, 3:46 AM
 
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There was a time when the Flathead Ford was the King of hot rodding and got swapped into everything. And a time when the small block chevy was king.

These days it's the LS motor.

Mustang's are light, plentiful, and have a good rear suspension setup for drag racing with minor mods. I hate looking at the Fox bodies and SN95 cars because they are the 1969 Camaro of today. Half the cars that go down a dragstrip it seems. But I don't care what keeps the sport alive, as long as we do.
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post #58 of 59 (permalink) Old Dec 10th, 19, 12:02 PM
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Re: Torque Converter

Quote:
Originally Posted by jakeshoe View Post
There was a time when the Flathead Ford was the King of hot rodding and got swapped into everything. And a time when the small block chevy was king.

These days it's the LS motor.

Mustang's are light, plentiful, and have a good rear suspension setup for drag racing with minor mods. I hate looking at the Fox bodies and SN95 cars because they are the 1969 Camaro of today. Half the cars that go down a dragstrip it seems. But I don't care what keeps the sport alive, as long as we do.
I guess that's a good way to look at it Jake. You make an interesting point there^....thanks for sharing. I cannot stand Mustangs, but at least they're V8 powered cars. I'd much rather see half the vehicles at the strip being them, than hill billy diesal trucks, or 4 banger ricer cars with the slicks being mounted on the wrong end
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post #59 of 59 (permalink) Old Dec 10th, 19, 9:11 PM
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Re: Torque Converter

Quote:
Originally Posted by jakeshoe View Post
There was a time when the Flathead Ford was the King of hot rodding and got swapped into everything. And a time when the small block chevy was king.

These days it's the LS motor.

Mustang's are light, plentiful, and have a good rear suspension setup for drag racing with minor mods. I hate looking at the Fox bodies and SN95 cars because they are the 1969 Camaro of today. Half the cars that go down a dragstrip it seems. But I don't care what keeps the sport alive, as long as we do.
It's good that you lake at it from the hot rod stand point. I have a good friend that has a 98 Cobra, went through 3 of those mod engines and it makes a lot of HP but is a pig at the track. Have suggested he go to and LS based platform but he is stuck on the mod motors and all his mustang friends just walk away from him at the track.
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