Love my 4K. It will melt my stock 245's

 

Yea i have another question. Will a higher stall size create more traction problem or a higher STR? Like for example. Running nittos on the street, will i even notice a traction difference between a 3600 and a 4k or will there be a huge difference?

 

the way i understand it is, the higher STR creates the traction problems, IIRR a 2.5 STR will multiply the torque produced at the moment you begin to move by 2.5

so lets say at the moment you begin to move your making 200 ft/lbs, with a 2.5 STR you will be putting 500 ft/lbs to the wheels

at least thats my understanding of it

 

ok, so the stall size itself wont have a very big issue on traction, jsut the STR. Ok then, im not worried about going big at all if this is the case. Maybe a 4k 2.4 str or 2.3. Also, what about tranny problems. I see a lot of guys have trans/stall problems after installing the stall? Ill be doing a shift kit, 24k cooler and trans temp gauge, what do i need to watch for so i dont have any problems? Also will this verter last with my car or will it puke on me after 5k miles which would be one summer?

 

That's correct about STR. It's possible for a lower rpm converter to hit *harder* than a higher stall if it has a more aggressive STR (and consequently blow the tires off more). As you increase the STR, however, most converters lose more power to friction/heat, which means you'll see a small decrease in RWHP. In general this RWHP loss will be offset by better 60ft, shift extension, etc.

To accurately decide what converter, you really need to take into account: what tires will you run? what rear gears? what engine mods?

If you have swapped rear gears for instance, and don't plan on running slicks, then a lot of converters on the market are going to be overkill on the street. Sure, you could still run a monstrous converter, but the car would lose some consistency and a few rwhp. Some people prefer stock gearing + a monster converter, some people prefer some mild gears and a midsize converter. In terms of ET, they'll both be quite similar, but the huge converter is cheaper and less trouble, so that's why you'll see a lot of cars with that setup (it's proven and it works for low $). That being said, it's unlikely you'll put any mid/high stall converter in the car and be *unhappy* with it!

 

That is one of the reasons I went with a Yank, they have been proven for years. Now, i'm not trying to discredit any other manufacture, but I was looking for good efficency and relaibility and in the end after plenty of research Yank got the nod

 

Ok well im already set and am buying a Fuddle. Just unsure on what size and STR as of now. The car will be bolt ons only. A cam wont come for a long time so plan o nthis set up for bolt ons only. I would like to work around getting close to 11.99 as possible full weight as i get more into suspension mods and 12 bolt. The car has the 3.23's and will be on street tires for the first day, week, maybe month but not long until the rims will be sent to get widened. Ill be running a 305 nitto or a 295 BFG. My friends getting an M6 car soon and there are 2 sort of built LT1s around that i hope to keep up with on jsut bolt ons and stall.

 

2500 is what I'm looking at for my vette. Its more of a daily driver too much stall and you'll just blow your tires away. I've heard of 1/2 second gain in a 1/4 mile with a 3500 stall. Can anyone back that up?

 

Well im definately going at least 3600. Ive heard too many stories about people wishing they went bigger. Right now im leaning toawrds 3800-4k

 

Going with Yank SS3800. Made that decision a while ago. Highest efficiency and most consistency that i've seen.

Can't wait to get that stocker out of here.

 

Why the Yank over a Fuddle 3800?

 

Reasons stated above

 

from what ive been told, Yank and Fuddle are both every good convertors to go with, and he said if you got the money go Yank, if your on a budget go Fuddle

 

Yea ive already decided on Fuddle, jsut cant get set on how big, haha. Ill be running some BFG drags around town

 

i forget the reason, but if you plan on spraying the car, you dont want to go too big, and my plan someday is a MS3 and nitrous so i figure the 3600 should work fine, i wanted a 3800, but got a good deal on a 3600

 

any converter you get you are not going to hook up with street tires, when i am going at about 55 oh a nice dry warm day and have it in 3rd and punch it to the floor the 245 goodyear gsc eagles still give a little spin, haha just imagine from a stop. If i want to take off hard and not spin the tires i usually have to give 1/2 throttle or less, so just go big or get a real low STR like 1.7-8. also yank is the way to go, only an extra $200, money well spend believe me...

 

ok, few points i guess i need to make a little clearer, not to be rude but so i stop getting the same comments. Im going with a Fuddle, price is the best and the verters are top notch, and i will be running BFG drags around the street.

 

dont worry about size that does really matter in how hard the car hits, you should be asking what str...

 

Yea, im still unsure on size also. Heres what im thinking, be safe and smaller and go 3600 2.1, or go a lil bigger and go 3800 2.3 or go all out, no looking back and go 4k, 2.4

 

mine is a 3600 2.2, i am sure a 3800 2.3 will not be much different, but you have to remember that converters are tested differently from company to company, i know my yank is tested different than your fuddle, so who knows what str to get. this is a little of what i mean read through this article....http://www.converter.cc/thetruth/thetruth.htm...maybe other fuddle converter owners can chime in and lead him to a good stall/str