BEST TRANS for turbo build
looks like i'll be saving up some more $$ seems to me the 4l80e is about the best to get for a street/strip car. well and if you have deep pockets....
next to find what gear to used and converter...
98Z28CobraKiller ill look into FTI converter's have no idea what stall
next to find what gear to used and converter...
98Z28CobraKiller ill look into FTI converter's have no idea what stall
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From: Bossier city,LA barksdale AFB
I just wanted to point out that we've made the 4L80E affordable.
Our 4L80E with transbrake and shipping is less than $2400 right now.
So there is no reason to give up the overdrive in a street/strip car.
Our 4L80E with transbrake and shipping is less than $2400 right now.
So there is no reason to give up the overdrive in a street/strip car.
theres no need for a overdrive trans in a turbo car. you should be running a low (numerically) gear anyways. if you are, you wont have a problem on the freeway. the same goes with the converter, its going to be a tight converter.
and lets not forget the price of a converter for the 4l80e...
and lets not forget the price of a converter for the 4l80e...
theres no need for a overdrive trans in a turbo car. you should be running a low (numerically) gear anyways. if you are, you wont have a problem on the freeway. the same goes with the converter, its going to be a tight converter.
and lets not forget the price of a converter for the 4l80e...
and lets not forget the price of a converter for the 4l80e...
A 4L80E converter costs the same as an equivalent 4L60E converter.
We have large clutch billet converters for $800.
If you actually have a turbo STREET car you will appreciate that OD when your cruising the interstate or city freeways at 80mph and not spinning 3500 rpm even with shallow 3-3.50 gears. I have 3.42's and really like that extra gear. Good converters all cost a lot.
The weight and rotating mass doesn't really play into a car until well into the 10's, and the 1st gear ratio of the 4L80E or TH400 will work better than the Glide in anything slower than a low 10 second car, especially when running 3.xx rear ratio.
The 3.xx rear ratios also lessen the amount of powr consumed by the heavier internals of a TH400 or 4L80E vs. a glide.
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Verdad Gallardo Agreed. 3.42 ratio is a good all around ratio, but with a 26-27" tall tire, you will be spinning the engine on a street car at freeway speeds. OK if it's just used to drive to and from the track.
since the thread is about a turbo car, a gear ratio is 3.08-3.25:1 would be best. @81 mph, with a 3.08 and a 28" tire the car would be turning roughly 3000rpm which is pretty comfortable IMO. thats one of the beautiful things about a turbo setup, they're happier with a tightish converter, and a shallow gear. and a glide might not be cheap, but a th400 can be built fairly cheap. but turbo cars LOVE the glide. i've read guys going from 9.3 to an 8.7 with a glide from a th400, and nothing else. that might be because of a poor suspension setup, but a glide is generally a calmer leaving, milder trans.
for most of us, we're not grandmas. we're not prissy brits in bmw's drinking tea. do you have a cup holder in your car? i dont...
for most of us, we're not grandmas. we're not prissy brits in bmw's drinking tea. do you have a cup holder in your car? i dont...
You gotta remember there's people on here with cars that are not Fbods as well. And who street drive a lot. I cannot put a 28" tire on my car without a good amount of work. Gear options lower than the stock 3.46 are pretty much impossible to get. Not saying my car wouldn't be faster with a different trans, but for a 90% street car, I love having OD.
Also a good number of the fastest true street cars on here run 80s. Mightymouse goes mid 8s and drives to the track.
And I got two cup holders. Gotta have a place for my Starbucks while I'm making some 10s passes...
Also a good number of the fastest true street cars on here run 80s. Mightymouse goes mid 8s and drives to the track.
And I got two cup holders. Gotta have a place for my Starbucks while I'm making some 10s passes...
since the thread is about a turbo car, a gear ratio is 3.08-3.25:1 would be best. @81 mph, with a 3.08 and a 28" tire the car would be turning roughly 3000rpm which is pretty comfortable IMO. thats one of the beautiful things about a turbo setup, they're happier with a tightish converter, and a shallow gear. and a glide might not be cheap, but a th400 can be built fairly cheap. but turbo cars LOVE the glide. i've read guys going from 9.3 to an 8.7 with a glide from a th400, and nothing else. that might be because of a poor suspension setup, but a glide is generally a calmer leaving, milder trans.
for most of us, we're not grandmas. we're not prissy brits in bmw's drinking tea. do you have a cup holder in your car? i dont...
for most of us, we're not grandmas. we're not prissy brits in bmw's drinking tea. do you have a cup holder in your car? i dont...
yep I agree, the gears and converter are working in your favor for street habits with a a turbo car
Nothing against the 80e, i can see its place in full weight cars
I am 2700lbs and with a tight stall, low gear, and no lockup it goes down the highway great
you could just about have two PG's sitting side by side and weigh the same as one 80e
oh 60e
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since the thread is about a turbo car, a gear ratio is 3.08-3.25:1 would be best. @81 mph, with a 3.08 and a 28" tire the car would be turning roughly 3000rpm which is pretty comfortable IMO. thats one of the beautiful things about a turbo setup, they're happier with a tightish converter, and a shallow gear. and a glide might not be cheap, but a th400 can be built fairly cheap. but turbo cars LOVE the glide. i've read guys going from 9.3 to an 8.7 with a glide from a th400, and nothing else. that might be because of a poor suspension setup, but a glide is generally a calmer leaving, milder trans.
for most of us, we're not grandmas. we're not prissy brits in bmw's drinking tea. do you have a cup holder in your car? i dont...
for most of us, we're not grandmas. we're not prissy brits in bmw's drinking tea. do you have a cup holder in your car? i dont...
I try and do things one time now that I have learned some things. If you get a OD with anything over 800rwhp you will regret it and more then likely end up switching it out later. If you do the TH400 you will have to freshen the trans up every so often but it more then likely won't brake.
All things aside. If you have a 2-3 speed you need a big tranny cooler. Don't mess around with this if you intend on driving on the street alot.
just my 2 cents.
Well remember that the 4L80 is quite literally a th400 with overdrive and lockup, so handling the power is not a problem (Jake has a couple of mods for 4L80s coming out that should let it hold 2000hp).
I'm with u on the glide if i wanted fuel economy and turning low rpms i wouldn't be building a 850+hp car.i know there r trade offs with everything unless u r rich.I'm not so ill do me a glide or 400 with mega hp and leave cruising at 80 on the xway @600rpms to the electric cars.
