help w/ stall speed

[rtm]

ENGINE: 406 SBC
ALUMINUM EDELBROCK PERFORMER RPM HEADS
1.6 ROLLER ROCKERS (CHEAPO SUMMIT)
MAX TORQUE:516 FT. LB @ 4600 R.P.M.
MAX. H.P. 489 @5400 R.P.M.
WEIGHT: FULLY LOADED (INTERIOR) MONZA COUPE ?? 3000 LBS. + ?
CAM SPECS:COMP XE 284H-10
GROSS LIFT= INT. 540 EXH. 544
DURATION @.050 INT. 240 EXH. 246
STREET /STRIP CAR (LEANING MORE TOWARDS STREET, BUT I WANT IT TO LAUNCH HARD) 4:10 12 BOLT REAR (IMPALA, NARROWED) MOSER 30 SPLINE AXLES
235/60/15 MICKEY THOMPSON DRAG RADIAL
LADDER BAR CAR
NOT TUBBED ,SO TIRE SIZE IS MAXED RIGHT NOW.
TURBO 350 W/ UNKNOWN STALL SPEED RIGHT NOW,( BUT PAINFULLY CLOSE TO STOCK)


THANX IN ADVANCE FOR SUGGESTIONS

BTW. ON A TIGHT BUDGET

THANX AGAIN

RICK THE MASON

[spencerforhire]

Any more than 3000-3500rpm stall in a street driven car can put some serious heat into a transmission. Driving around in an urban area with any hills you'll be slipping more than you want. At least you've got short gears in it so it won't spend a whole lot of time under 3000rpm anyway. A new Summit 2600rpm converter is only a little over $200.
http://www.summitracing.com/parts/sum-g2702-1/overview/

[rtm]

thanx 4 reply spence,
obviously not out to build a monster like yours, but is 2600 RPM enough to bring my combo to life?
right now, it falls short of my expectations. BTW,this car will never be a daily driver, more of a cruise nite/light to light sorta thing (bad smiley choice on christmas eve.) LOL

[cjbiagi]

Torque converter stall speed will vary with the amount of torque an engine will produce, so keep that in mind when looking at rated stall speeds. For example, a 2500 rpm converter may stall at 2000 with a low torque engine and 3000 with a high torque engine. In other words, it's designed to stall at 2500 with a given amount of input torque. With the amount of torque your engine is producing I would suggest speaking with the tech dept of whatever brand converter you are considering. There are other factors as well that will determine the true stall speed including vehicle weight, gearing etc. Don't take the rated stall speed as an absolute number. Most likely whatever you pick is going to stall higher than what it's rated for with the amount of torque you are producing.

[spencerforhire]

I would think with over 500hp Rick can expect the higher of any RPM range advertised for a converter.
If it's not going to be driven much on the street 3000 to 3500 wouldn't be out of the question.

[Fastmax32168]

A few years ago I anted up $600 for a 10 inch 3000 Stall speed converter for my 94 Vette from Edge Converters and it was some of the best money I ever spent. In spite of the fact that it flashes up high and holds like mad it drives like nearly a bone stock converter in daily use. My days of buying $200 production converters that turn your car into a slushbox are over. My 3000 stall converter will move the car away at idle if I take my foot off of the brake. So my advice would be to spend the dough for a good custom made converter and not a mass produced old school spinner.
Roy

[speedphreake]

I'm close to your combo and I run a 4,000 stall ati converter. On the street it drives fine, I have a real nice trans cooler and very rarely see any temps above 140 and its usually stop and go traffic. Call ati or any reputable converter company and give them all the details of your combo and get one spec'd for you. It's money well spent and will drive just fine on the street.

[waybad]

I ran a 10"tight nitros Neil Chance in my camaro with a 500hp,bbc, 410 gears,33" tall tires, 400turbo and it weighed about 3800lbs and it would flash stall to about 4200rpm,I could cruise at 2k at 60mph just get a BIG cooler and mount it in front of the radiator...

[spencerforhire]

Rick- As you can see by the range of suggestions there's quite a difference in what people are willing to call a "street/strip" converter. If you go too tight, you sacrifice strip performance, and if you choose one too loose it's a pain on the street. At least your car has lots of torque and short gears so I don't think you have to be too exact in choosing the "perfect" stall speed; as long as it's somewhere close to where the motor really starts to make power and below cruising RPM you're going to be OK. Just make sure you've got a good cooler on it.
My drag car stalls at 4200 on the trans brake but drives around the pits like a mild street car, even with 4.30 gears and 32" tall tires; not sure if I'd want to have it on the street like that. I suspect things would get hot in a hurry if I took it downtown. Anyone who's been to Halifax will understand. It's kind of like San Francisco.

[Fasterthansome]

The Jegs XHD converters are great for the $$ I think they are 399$. Also Jegs has a very easy return policy if your not happy with the product. We have one in a 8.90 car and a couple street cars. im running one that flash stalls in the real high 4k range and drive it everywhere.
I would shoot for 3500+.

[cjbiagi]

My point is that the rated stall speed may not be the actual stall speed in your car. So, you need to take that into account, that's why I suggest speaking with the manufacturer to try and see what they suggest. Let's say you want it to stall at 3500 rpm, you may actually select one with a lower stall because of the amount of torque your engine is producing it will actually make it stall at a higher rpm.

[chevyart]

rick i suggested one of the standard sizes(sold at jegs and summit) at 3200-3600 rpm stall. more than that you MAY get slippage on street(9and heat) and less than the 3200-3600 and your engine will pull you through stoplights.. everyone gave you a good answer> CJ gave you a real good explanation on how one converter will stall differently on different engines(especiaal on a big block vs small block). your best bet is to hop in your car and drive over to Dynamic Transmissions in west haven and they will build you exactly what you need(maybe rebuild your existing converter)i use their converter in my race car and my engine builder swears by those guys. goods luck art

[Fasterthansome]

Transmission specialties makes the Jegs converters. http://transmission-specialties.com/641 ... =24_47_113

Also a 4.10 gear will have a bit lower stall than say a 3.55 as will a lighter car.

[rtm]

looking at this converter
http://www.scpraceparts.com/chevy-10-tu ... stall.html

$271.00 to my doorstep, anyone know anything about this company?

thanx again,

rick the mason

[cjbiagi]

The manufacturer is "Big End". I have seen a lot of their parts in some catalogs, don't know much about them though. Here's a link to their site http://www.vsihp.com/catalogs2.php?catid=bigend Converters are on page 25