Ok whos got it? Im currently running a heads and cam with bolt ons, fogger(200), stock 4L60E with a Shift kit and a 10bolt with Aburn Posi and GM Peformance Gears. Im pulling 1.44s best so far and trapping at 10.58s. Im going to up jet to 300 with a progressive soon and see where it gets me.

 

10.5, thats awesome. What bottom end do you have? I have thought about upping my nitrous to 200 when I get everything running right.

 

I ain't believin' that 4L60 is bone stock save for a shift improver. No way. I've seen to many people with just bolt-on cars that have a slipping/dying A4, and my own car didn't last but about 3-4 months before it started slipping/not going into gear with a stock LT1 and a 100-150shot.


No way a h/c/200+ shot is working with a stock 4L60E...





Jon

 

Bring any car in your sig with its tittle to my house and we will rip this trans apart. If it has anything other then a shift kit you can take my car home, if it doesnt Im taking your car.


I thought I would have 2-3 shift problems but havent it has a perfect shift every time. We have another 97 we were spraying the same amount and had no problems with that. I did blow out 2-3 trans that came with the car, this one is used and has been in it for over 30 200+ Nitrous Passes and God only knows how many motor rips.

As for the shortblock its stock minus cam and chain. The whole car has been dubbed Ole Faithful because of the Bottom end, Trans and Rearend still not breaking. I think there is so much blow by now that its dropped the compression a ton, just because you can turn the engine over by hand with the plugs in it

 

It's funny how so many people don't see the GONE by all the cars in my sig. The Buick's on it's last leg and truck has got 6in/4.56s/35s/carb'd 350, so that's not going to Cali either. Seriously, who make such a stupid comment...


As for the tranny, whatever. I don't believe it and I'm sure that's fine with you. Just don't be one of those idiots who tells everyone how great the 4L60s are, cause they aren't. They're F'n junk. Anyone (besides you) who is actually running 10s or faster will agree...




Jon

 

Just like people say 10 bolts are crap, stock stuff is crap. Besides the trans if you know what your doing and how to tune and build right you can build fast stuff with stock parts. Its not my fault people dont have the knowledge to do it.

 

The stock parts aren't the best in the world. But I have seen quite a few of the 4L60's take a lot of abuse as well as 10 bolts. A friend of mine ran for a few years running 11.30's launching on spray on a stock 4L60, but it eventually starting slipping.

I wouldn't say he is lying about the tranny or rear end, though it isn't common some stock parts last and some don't. I personally have had the stock tranny on my car start slipping as soon as I bought it.

 

more power to ya for keeping that stuff alive.

My old 4l60e lasted 2 years after a $800 rebuild,and went 2 years before that stcok with a shift kit,the original saw 150 hits left and right,and only started to slip after i overheated it badly 1 day. the 2nd trans was a freak accident,i shattered the output shaft and took a sprag,planetary,and a few other parts,was definately a fluke.

 

I'm not running 10's, or even 11's for that matter - just low 12's. But it's a heavy car (almost 3800 lbs with myfatassinit), so it would be in the 11's if I dropped a few hundred pounds.

My stock 10 bolt with 4.10's lasted 670 trips down the 1/4 mile before it lost 4 teeth out of the ring gear. And I have the records in my log book to prove it. And that doesn't count all the street abuse it had either. Of course the gears were installed by someone who really knew how to set up rear ends for a lot of abuse.

My stock 4L60e lasted longer than that with a 2800 stall converter. I'd have to look in my log book, but I believe it had over 750 runs on it before I had it rebuilt. It didn't break at that point and it wasn't slipping real bad. I just figured I'd get it rebuilt before I got stranded somewhere. Again, that didn't include all the street abuse it saw. Btw, that street abuse included manually downshifting it on a regular basis, which everyone knows is a big no-no.

As just one example, anyone who knows Jeff Creech at Carolina Auto Masters in Durham, NC knows he's still running a stock 10 bolt and 4L60e in his 95 T/A, which runs low 11's with 1.5 short times. He's like me: He loves it when someone opens their mouth and says stock rearends and transmissions don't last

 

Stock 4L60E w/a now 3200 stall and TransGo stage 2

Stock rear w/ strange 3.73's and T/A Girdle

low 1.6's all day long, over 200+ passes, low 12 sec car

 

Maybe my trans has lasted that long because I had such a loose converter in there(3900Vigi) I recently switched to a 3300 TCS for Nitrous because it was too loose. It probably wont last long since there is less slippage.

 

All this talk about stock 10 bolts lasting through pass after pass gives me hope!!! I think the auto is a little easier on them than a 5 or 6 speed though.

 

As long as you minimize the shock on them (auto tranny, good bias ply tires) you can help them out, They now make strong axels for them. I know a guy that has a 7.5 in his S-10 running 1.50s and 60s 60 footers, he added axels and a T/A diff cover with studd girdle and preload bolts. He's running GM 3.73 rear gears and an auburn Posi. (its about 7 or 8 years old now)

 

friend of mine w/LS! car went 10.5x @ 130 with stock 10 bolt and tranny...never tore either of them up but upgraded anyway!

 

I think some of the controversy here can be alleviated by realizing GM did make improvements over the years. The early 4L60E's had major issues. Some breaking on completely stock cars. My '95 vintage only lasted to 58K miles before needing a rebuild. The newer trannies are quite different. The LS1's are so different they are called 4L65 so big difference there. It's good to hear that the stock parts are holding up though. I don't plan to change my rear until it breaks. The six-speed guys might want to go easy and make sure to have the new rear end fund ready. 6-speed+new clutch and 6k RPM dumps on slicks=bye bye 10 bolt.