PUNISHER TA

iTrader: (13)

Shhhh... They're watching...

Stumped1215

iTrader: (9)

pmed

03supercobra

iTrader: (38)

Go ride in a turbo/auto car and you will see. I have driven both and would choose an auto every time.

p8ntslinger676

Faster, ya they are every time, but i would still choose a stick, i guess its really up to the person which they perfer

PUNISHER TA

iTrader: (13)

After several hours of research... I think I am going to go with a TH400, but with a high rear gear

1st ; ~100MPH
2nd; ~170
3rd; ~220

75MPH in 3rd; 2300RPM
40MPH in 2nd; 1800


What does everyone think of a setup like that?

Drivability?

Would the longer gears make spooling better or worse?


Again, this is a street based setup, and of course Id like to go to the track a couple times and see what I can do, but most of my use will be trips down to mexico to race turbo busas to 200+

Sarg

iTrader: (6)

Honestly why not go with the 4L80 and keep a 4th gear for those several hour long cruises? Every bit as strong as the 400.

PUNISHER TA

iTrader: (13)

idk, im just guessing here...

Seems like all the fast big turbo guys are running powerglides through the quarter... so I figured Id go with a TH400 so I had an extra gear for highway, and it seems to line up well...

How do you calculate the optimal number of shifts..? Obviously more is not better

Sarg

iTrader: (6)

I believe Mightymouse went into the 8s with a 4l80.

PUNISHER TA

iTrader: (13)

I was talking about the guys in the 7s.. I realize 8s is very fast, faster than I plan on going... but just because he did it on with 4L80, doesn't mean he couldn't have gone faster with a TH400 or glide...

SPRAYED 01

iTrader: (22)

So you want to go at least 8s, cruise it on super long highway trips and get good mileage. Just curious, what have you budgeted for this build?

RacerXLs1

iTrader: (14)

My ideas!!

Twins maybe twin 72's
4l80e with brake just in case you want to hit the track..
Maybe something in the 400 cube range,now I'm not the brightest person when it comes to turbos but I think that setup would do you.. I think back halting these cars are a waste but that's why we all have our own..

FlashWS6

iTrader: (18)

Transmission isn't the limitation on "Mightymouse's" old car, which is my new car, the limitation is safety and street-ability. Cage was only certified to 8.5's which it has gone faster than already.He didn't street race it, but I do. Doesn't help that the car is only on a T4 flange and almost no timing. It has the capabilities of going faster and trapping much higher but I won't sacrifice the reliability of it just to be a little faster on the highway

No street able stick trans will hold the power, Mighty mouse tried it and so did my good friend Tiago. Both of which are arguably the fastest Street cars on this site..

Stumped1215

iTrader: (9)

Exactly what I was wondering. This will be alot of car for a 23 year old in college.

rotary1307cc

iTrader: (5)

This is lol

qqwqeqwrqwqtq

427 and a 106 is going to suck ***** on the street, even with an auto but especially with a stick.

I too really enjoy a manual trans turbo car but it has to be twins. I've done a fair amount of high speed highway racing and I can tell you a 600rwhp nitrous car will probably have 20 cars on you before you even get into boost with a 427/106/M6 combo.

As for twins selection, I didn't see a power goal mentioned.

PUNISHER TA

iTrader: (13)

You are making a lot of inferences there... I never said I wanted to run 8s, Ive said numerous times, its just a street car, any track times are just for fun... but its damn hard to refrence power on this site, without citing 1/4mile times... Not enough people on here have a vbox to record 60-130, 100-200etc.

I have no budget... Just like the first time around, I started my 454 LSX build when I was 19... I decided what I want, set a goal, and did whatever was necessary to reach it.. I will be following that exact plan for this build as well.


You're trying to make me sound like an idiot, and a bitch... Which I don't appreciate, you don't know me. I never said I need to get good fuel mileage... Do I NOT want to cruise on the highway at 5000RPM? Yes... but that is a non-issue regardless, because it also needs to be geared to do ~220. Once the gearing is figured out, and of course the car will be setup for street duty as far as cooling, what would be stopping my from taking a 300mile cruise to a car show or whatever..?

My last build was a lot of car for me... and I wanted to be happy with it.. but I got bored like the second week of driving it... So here I am.

PUNISHER TA

iTrader: (13)

Yes, I already had twins as an option.. The compressor maps on the 72s really seemed to fit my setup pretty well.

Exactly, I think... Im not even sure how far Ill take the cage on this build, 6-8pt rollbar minimum, but im undecided on whether or not I would like dealing with the rollcage.. I started with a 8.5cert 10pt rollcage in this T/A, but I was too tall, and without new seats it wasn't going to work at all..

PUNISHER TA

iTrader: (13)

Thats helpful, Im not sure what you're laughing at, but let me take a stab in the dark and guess you don't like the 106 either..

Please look through the compressor maps and find me a single turbo that would let me run up to 20psi on a 427 at 7000RPM

Dropping down to a 91, I'd be all over the choke line...




Thanks for taking yor response seriously.

There really isn't a power goal, I'd like to run a 427... I figure the first year, Ill start out at ~7psi or so, and then I can move and upgrade from there...

But, after my research last night, I think I would be pretty satisfied with a manual valve body auto.


Let assume, I already have a 427 built for boost and want to go with a single turbo setup... What size should I go with?

Lets also assume(for a second), that I would be running 33x18.5-15 ET Streets... Could I brake boost enough and hook well enough from a 60roll or 100roll, to not suck?

ws602

iTrader: (2)

I have a build that I will be posting up soon . I had similar goals in mind I had Brian at Late model engines build me a soild roller Lsx 427 and josh at kytp build me a twin turbo kit that retains ac with precision 7675 on it. I would call josh and tell him your goals and he could steer you in the right direction.

qqwqeqwrqwqtq

Well I happened to encounter quite a few slicked up turbo cars with a stalled auto. From what I've seen, cruising along on a concrete road (so it's not like you stopped on the highway and did a burnout or prepped anything), the stalled auto cars would have a lot of problems with traction from a roll, lag at first and when the thing finally lights up and the torque curve goes vertical the tires get blown away. Just the way the power came in with the auto/converter. You could fix this with a tight converter but then you are going to need a responsive turbo setup, not a huge single. BTW with a manual valve body auto, I don't believe you can do any wide open throttle downshifting without damaging the trans.

With the stick I could be up a gear from optimal and load the engine harder, if it got a little tire spin it was easy to modulate.

IMO I don't think you could consistently brake boost it and get it to work correctly. A good set of twins will punch it from a roll and be gone instantly so you will always be playing catch-up. Even if you run for a mile you will need to have 500+hp on whoever you are racing to make it up in that distance.

As for single turbo selection I will bow out of that one as I personally wouldn't do it.