3500 stall converter on the street? - Team Camaro Tech
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post #1 of 16 (permalink) Old Apr 18th, 07, 08:42 PM Thread Starter
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luke
 
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3500 stall converter on the street?

does any one drive their cars on the street with a 3500-3800 stall converter on the street occasionally? i'm probably going to get one for my car. the only street time the car sees is driving to and from the track. my freeway cruising RPM is about 3400 rpm. would that burn up the trans during the 10-15 minutes on the freeway. i am currently running an auxilary trans cooler and the cooler in the radiator also.
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post #2 of 16 (permalink) Old Apr 19th, 07, 01:33 AM
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Re: 3500 stall converter on the street?

Yep, coupled to a T400 and 454 LS7 with a 4.56 final gear. Another toy has a 5K converter, 727 torquflite, 426 race hemi and a 5.13.

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post #3 of 16 (permalink) Old Apr 19th, 07, 05:38 AM
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Ken
 
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Re: 3500 stall converter on the street?

I'm running a 454 with a TCI Super Street Fighter turbo 400,TCI 3800 stall and a Moser 12 bolt with 355 gears. It's a tight 3800. No problems so far.

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post #4 of 16 (permalink) Old Apr 19th, 07, 06:35 AM
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Re: 3500 stall converter on the street?

Yep done that, breaking the tires lose at 20mph is cool I don't care who you are (well some cops might disagree). Mine would hold good until you floored it then just sat there at 4000rpm until the car caught up to the motor. I even drove a 5500rpm stall on short trips. It was a 2600lb car though.
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post #5 of 16 (permalink) Old Apr 19th, 07, 08:22 AM
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Re: 3500 stall converter on the street?

Ive driven mine on several long trips and daily locally with 5,200 stall, never even thought twice with my old 3,000 stall.
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post #6 of 16 (permalink) Old Apr 19th, 07, 08:50 AM
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Bob
 
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Re: 3500 stall converter on the street?

I used to drive to work with a Boss Hog "28-3200" that I could push to 3500 cold or 4K when the trans was warm.

'71 Nova, 357CI, Crane F-280 solid lifter cam, Holley 900 EFI, T400, 3.89 posi 9". That was fun!

Good Luck!

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post #7 of 16 (permalink) Old Apr 19th, 07, 09:15 AM
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Re: 3500 stall converter on the street?

my 5,200 only pushes to 3,000 but will flash up when im ready its a N2O converter thats why im guessing?
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post #8 of 16 (permalink) Old Apr 19th, 07, 09:52 AM
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Tom
 
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Re: 3500 stall converter on the street?

I've run my 10" on the street and it flashes to 5200. I can easily hold it on the line with the drum brakes at 3000 rpm. Just make sure that your cooler is a large sandwich type and for extra insurance, install an oil temp gauge. BTW, mine never read more than 190 driving the downriver cruise in MI. That's a lot of rpm to turn on the freeway! What speed?

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post #9 of 16 (permalink) Old Apr 19th, 07, 10:28 AM
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Re: 3500 stall converter on the street?

Cruise rpm has nothing to do with flash stall speed...you don't cruise at WOT (most people don't anyway ). A good quality convertor such as ATI, Dynamic, Coan, etc is a must. I have a 10" ATI that flashes about 3400 rpms (the previous one flashed about 3800-4000 on street tires) and can cruise all night long around town at under 3000 rpms easily. Part throttle response is still good too...you only really notice the looseness when you hammer the throttle.
On the other hand, many lower end or cheap convertors will get extremely hot at low cruising speeds, and be all kinds of mushy. In anycase, a big cooler is very important no matter what convertor you use. In addition to the cooler in the radiator, I also use a large stack plate cooler.

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post #10 of 16 (permalink) Old Apr 19th, 07, 03:55 PM
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Ron
 
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Re: 3500 stall converter on the street?

Im running a 10" BTE that flashes 3800 behind my 408sbc. I drive it all the time and even have a GV overdrive . My cruise rpm's on the highway are 2500 rpm and I have had no heat issues. I am running a deep sump aluminum pan and a 32K GVW tranny cooler.

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post #11 of 16 (permalink) Old Apr 19th, 07, 05:50 PM Thread Starter
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luke
 
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Re: 3500 stall converter on the street?

cool. thanks for the input guys. i feel better about putting it in now.
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post #12 of 16 (permalink) Old Apr 20th, 07, 02:20 PM
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Fritsch
 
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Re: 3500 stall converter on the street?

Sorry to butt in, but Im woundering how does the stall speed effect the way the car reacts? I have a th350 with a 2200 stall in it cause that what the crate motor required, but what would change if i installed say a 3000 stall converter? Just thought I would ask since u guys seem to know quite a bit about stall converters.
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post #13 of 16 (permalink) Old Apr 20th, 07, 05:01 PM
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Re: 3500 stall converter on the street?

Quote:
Originally Posted by 79powerhouse View Post
Sorry to butt in, but Im woundering how does the stall speed effect the way the car reacts? I have a th350 with a 2200 stall in it cause that what the crate motor required, but what would change if i installed say a 3000 stall converter? Just thought I would ask since u guys seem to know quite a bit about stall converters.

it would probrably be faster I dont know your specs but most smallblocks reach peak torque in the 3,500 -4,500 range and most manufacturers give you a minimum stall speed recomendation, I remember my first 2,200 stall I couldnt tell a difference from stock driving!
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post #14 of 16 (permalink) Old Apr 20th, 07, 05:30 PM
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Re: 3500 stall converter on the street?

i have no problems on the street with my converter...its a 9" or 9.5, my old converter was a 10" trans specialties that was rated at 3400-3800.....and stalled to 4500 my new converter feels tighter driving around but blipp the throttle and its at 4800.

it does run a bit warmer then i like but that might have something to do with the t-brake to

no problems at all with a 3500 and a decent size cooler

Kyle

68 Super Sport
468, 11.5:1, AFR 305cc heads, Vic Jr, ProSystems 1000, 264/275@0.050, TH-400, flashes to 4800, 3.73's.
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post #15 of 16 (permalink) Old Apr 20th, 07, 09:23 PM
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Re: 3500 stall converter on the street?

The 10" 3K stall does good on the highway and through down town. It'll start pulling just off idle, so it's not like it has to be run up to make it go. With 3.90 gears, it's right at 65 mph on the highway @ 3K rpm. Like everyone else stated, flash RPMs are always higher.

It seems like slower speeds (more slippage) relates to higher trans temps. Highway cruising temps are usually arouind 165*. Slow speeds/in town, I've seen as much as 190*. It's a good idea to slip it into neutral while sitting at red lights and waiting for traffic.
Cooler is always better, I'll be swapping to a bigger unit this summer.
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