Smoked the 700R4 this weekend

[RetroSBK]

Got a lil aggressive with the burnouts, and there goes 3rd and 4th! ooops!

So now Im trying to decide... Turbo 350 and a bigger tire (running 295/50/16 in the rear, 26.7 tall, would go to a 285/55/16 whick is 28.6 tall) or rebuild the 700. Cost is about the same, but this is my 3rd 700R4!!

Will

[HeavyD]

If I had already bown up 3, I know I would be swapping it out to either Th350 or 400.

[dmec]

stop running stock 700r4 and get 1 that is built to take the torque.

[Orange]

Originally Posted by dmec

stop running stock 700r4 and get 1 that is built to take the torque.

I agree.

I blew 2 TH350's and went to a 700R that was built for the abuse.

Got the Godfather from Maddog Trans and I couldn't be happier (so far anyhow).

DLB

[67ChevyRedneck]

Don't know what you had your last 700's built too... but in their original form *most* weren't meant to take much more than about 270HP-290HP and 300 ft-lb of torque, and some were mated to V8 motors with considerable less power than that.

My stock 80's 350 is probably only putting out about 220HP

[mnunn454]

If you aren't running an extra tranny cooler, that'll help kill them too, especially in the summertime. The later model automatic trannies are less heat-tolerant than the early PwrGlide/TH350/400s, so a supplemental cooler is a must.

Not adjusting the throttle valve cable correctly is another sure fire 700-R4 tranny killer. A few hours of homework and adjustment effort can save you lots of pain later. Your TV cable was adjusted correctly, wasn't it?

Next, the TH700 has a lower low (3.06:1 compared to 2.48:1) and a higher high (30%) higher in fact than a TH350/400. In other words going to 350/400 will hurt on both ends (off the line pickup and highway mileage/MPG). Still, those might be easier pills to swallow than a $2000 bill for a 3rd but decently built TH700.

Were it me, I still think I'd save my pennies and opt for the built TH700 and a tranny cooler.

PS: I've got a 700R4 built by Bowtie Overdrives behind my 450+HP 454. It's running fine for 3 years plus now, burnouts and all.

Let us know what you decide?

[Orange]

Originally Posted by mnunn454

If you aren't running an extra tranny cooler, that'll help kill them too, especially in the summertime. The later model automatic trannies are less heat-tolerant than the early PwrGlide/TH350/400s, so a supplemental cooler is a must.

Not adjusting the throttle valve cable correctly is another sure fire 700-R4 tranny killer. A few hours of homework and adjustment effort can save you lots of pain later. Your TV cable was adjusted correctly, wasn't it?

Next, the TH700 has a lower low (3.06:1 compared to 2.48:1) and a higher high (30%) higher in fact than a TH350/400. In other words going to 350/400 will hurt on both ends (off the line pickup and highway mileage/MPG). Still, those might be easier pills to swallow than a $2000 bill for a 3rd but decently built TH700.

Were it me, I still think I'd save my pennies and opt for the built TH700 and a tranny cooler.

PS: I've got a 700R4 built by Bowtie Overdrives behind my 450+HP 454. It's running fine for 3 years plus now, burnouts and all.

Let us know what you decide?

Again - I second that.
My 700R4 can readily hold 700HP, or it is just extra super overkill for street abuse and daily driving. It didn't cost me $2k either. (And I have the unlimited mileage 1 year warranty, etc.)

DLB

[cdowns]

i agree with them about getting a built tranny i always try and get one rated for at least 50% more than i'm ever going to produce

alot of times the cheap turns out really expensive

[RetroSBK]

Ive been thru three TCI Super Street Fighters...

Orange, a 700hp 700R4? Ok, Sign me up... Where do I find this for less than 2k?

Will

['68 longbed]

stock r4's are junk with any extra horse power . you can get it rebuilt with all the stronger stuff for like a grand. I have cooked four stockers with just 375 horses.

[ChevyDude]

My 700R4 is rated to 550 hp....Monster Motor Sports.

www.eatmyshift.com

[mike nutt]

http://www.transmissioncenter.net/highperflist.htm, his place builds some awesome transmisions.

[BCOWANWHEELS]

for this kind of money just use a stock th400 and a gear vendor O.D. it will 4 sure hold up.....
jmo
bob

[mnunn454]

Originally Posted by BCOWANWHEELS

for this kind of money just use a stock th400 and a gear vendor O.D. it will 4 sure hold up.....
jmo
bob

Sorry, but while I agree that the GVO/TH400 combo is super durable, it's also double the cost or more of a TH700 that's beefy enough to get most engines hooked to the ground reliably.

GVO's are about $2200 to $2500 just by themselves unless you're lucky enough to find one used somewhere.

[Orange]

Originally Posted by RetroSBK

Ive been thru three TCI Super Street Fighters...

Orange, a 700hp 700R4? Ok, Sign me up... Where do I find this for less than 2k?

Will

Well - I don't know if Mad Dog Transmissions changed names, or pissed his guys off or what, but this is the same thing I got:
http://cgi.ebay.com/ebaymotors/Chevy...QQcmdZViewItem

I bought it off his site, and spec'd out what shift I wanted, etc.
I got a "Stage 2 shift" which is pretty firm. It will definitely get your attention in 2nd (break loose).

Shipping was only an extra $200 or so for me at that time, so I still came in for less than $1600 I believe for the whole swap. This one has free shipping.

DLB