I plan on running twin turbos on my T/A after i put a 383 in the car. My question is what turbo works well with a 383

 

We need more Info.

Whats your ET and HP goal.
Whats the current motor /car combo

How much do you want to spend.

 

well...right now i have a 86 305 and i was hoping to put a 383 in later, but i also want to put a turbo in with it. I dont' know what cam to put in, but I will be having a 2400 stall and 700R4 trans and a 3.73 10-bolt rearend as far as the motor goes I will be running 24 lb injectors unless i really need to upgrade (which i'm sure i'm going to have too) and thats it. I really would like suggestions as to what valve-train to get and stuff... Any help would be great...Thanks

 

bbsdesigns.net

He has a solid LOOKING turbo package...yet he has never provided a dyno sheet.

Very affordable to, heck just the headers are worth it

 

well...ummm....yea thanks but the headers really aren't worth it, not for $800 bucks I can make my own, but it does help me with what turbo to get thanks

 

dont mean to hijack anything, but I am interested in the same thing. I would like to turbo my soon to be 383, looking for around 400hp/475ftlbs at the crank. Single turbo, possibly twin. Which turbos would match well against this engine/power goal?

 

honestly, I'd say none - 400hp at the crank is easy with a N/A 383

If you are shooting for a 600hp 383, then a turbo would work... go with at least a T76, @ 6-10psi

 

now i was just wondering, how did you come up with T76, and do you know if they came stock in any car that would be in the junkyard for me to possible rebuild


And its ok hijack all you want

 

doward, how about with a TBI? Is 400hp N/A at the crank is easily doable?

 

well the problem i see there is that i don't think it would flow very well at all. Its like putting nike's on a fat guy it doesn't help anything. When I put my 383 in i'm going use SealthRam as my intake.

I'm sure it would work, but if your going to go thru all the troble of drop a new motor in... go big or go home

 

Reason I ask is i have the 350 TBI right now, and basically want to push the limit with it. Also, CA makes for some SMOG legality issues which inhibits a lot of things. Theoretically what would be a good sized turbo to match a 383, both in single and in twin setups? Obviously two different turbos for the different setups i imagine.

 

your gonna want to get at least 12bolt rear end, and a new tranny before you put a twin turbo 383 into your car. as was stated an N/A 383 can easily produce 400 crank HP and close to 500 crank tourqe. Hell a 350 can be made to make 400HP with out much fuss. (i'm planning on a Twin Turbo 383 my self, but not for quite some time, as my 350 is just now in the stages of starting to be rebuilt, I'm also looking at getting a 400 block to build once I get the 350 done.)

but yea, your rear end and tranny need upgraded before your eninge if your using stock parts.

 

well, lets say 400rwhp/475rwtq with the turbo, TBI. This is actually for my 94' z71 that will be running 40"s and 20"s, so i will most likely have a 14 bolt and something like 4.88's. Is 400rwhp/475rwtq achievable through a turbo'd 383 TBI?

 

Im goin to be gettin the BBSdesign single turbo kit. and if you do a serch he has posted dyno results on a relitvly stock L98 with stock chip. and i think the grand totaly was just under 540hp i thik it was like 537 or something. he has a video of his gta being dyno'd and i think at the end of it , it shows the results.

 

i have a 383 with dual throttle body injection ive been building for 2 years now, when building it i decided to twin turbo it- im using 2 stock turbos off of grand nationals while im welding up the headers and everything so it all works right them ill be upgrading later- but 2 GN turbos will feed what im doing sufficiently. just remember you cant slap a turbo on and call it a day- you have to have an adiquate fuel system, and know how to properly tune your car. also your trans and your rear wont hold up with the power- when tackling a project like this- its all about the weak link, beef up the tranny, rear, driveshaft and universals, get a nice chrome molly flexplate. ive been working on building this motor set up for 2 years now- and its not even half done, it takes time. not to be negative or anything- its just somthing to take a step back and look at befor you do. atleast for me- having a turbo car is alot of maintenece- and alot of money- what other cars do you need to run a scan tool all the time just so you know you wont blow a head gasket with too much detonation.

 

We've got a pair of Master Power 60-1's on the turbo car in my sig. I was going to go the junkyard route, but, when it came right down to it we got a good deal and spending a little extra for a turbo matched to our engine combo is worth every penny.

 

Buy a book by Corky Bell called "maximum boost" and read it. It sounds like you're just making guesses about what you'll need from what you said about injectors. 24# injectors is way small, hell even for a built n/a 383. I'm running 42 pound injectors in my mustang with a small twin turbo 5.0 setup.

 

definatly buy the maximum boost book- i learned alot reading that and Turbochargers by Hugh Macinis. yes 24 # injectors are small. on my V6 turbo i run 42 right now- and im upgrading to 50# on my Stage II buildup. also after your combo is built decide on your TC im running a 3000 stall on the street on my GN and i love it. go buy the 2 books befor starting anything, read, ask alot of questions, then start your buildup- also think about what internals youll use with your trans, my 200R4 didnt last long launching at 13lbs of boost.

 

What kind of power are you realistically wanting? The twin setup on my 383 (LT1) can handle 1000-1100hp. A pair of 60-1's would be a good setup w/o sacrificing driveability. Don't forget to upgrade the fuel system (I spent over $2000 on mine), chassis/suspension (another $3000) and drivetrain ($3500 for the TH400/12-bolt). All the power in the world means nothing if you can't use it.

 

Yes they are, they start spooling around 3,000 rpm and hit full boost by 3,500. Yee haa....

 

A twin setup w/ T04E housings would be just fine. If you need more, there's always the S & R trims or just switch to the 62-1 or an SC61. Monty Williams made 1200-some hp on a 427 w/ 60-1 HiFi's. I think he peaked out a little more than 3500 too.

 

Hey Ajt do you have any pictures of that? how far along have you gotten? That sounds pretty cool i know its been done on many other cars but hows it look in 3rd gen? good luck with that

 

im running a 383 in my 00 and 02 and dynoed out at 400 at the rears. you should have no problem with those number n/a

 

i plan on running a 383 stroker motor with a lt1 intake, 12 bolt rear end with 4.10 gears, th350 pro built transmission and either a banks twin turbo kit (too pricey) or somewhat home made turbo kit using some nice big turbos that will sit right behind the turbo vents on my twin turbo hood from usbody.com so when you look down them you can see the turbines

ahhh....cant wait

intercooled of course

that along with my 383 motor pushing 400+hp at the RW and tq about the same should put me somewhere in the range of 800hp and tq and 10 sec 1/4 times or better

 

I'm no turbo guru or anything but here's the way I see it. Before you decide what turbos you're gonna use, you need to decide on how you're gonna build the engine. You need to match up the flow characteristics of the turbos with the flow characteristics of the motor. IMO, to get the best results everything should be matched up with regards to the goals you set. You could always just slap on whatever turbo you want and see what happens, but you might end up with a setup that does not maximize the potential. Depends on how you want to do this. I also plan to do a turbo project, but I'm not even concerned about what turbos to get because the engine isnt done yet. I'm still at the point where I'm gathering basic parts (banks manifolds, etc) and building the rest of the car to support the setup I plan to put in there (cooling system, fuel system, drivetrain, etc).

 

 

rocluvr0013 its coming along slowly now- my transmission pump blew along with my 9" 3500 stall convertor in my gn so i had to rebuild and buy a new 3000 stall- then the other day i was raceing it and the tensionor bracket broke off and left 3 of the bolts in the front of the head- so tomorrow im gonna try and use an easy out to get them out if not the GN is getting the motor pulled and complete rebuilt with a new TE-63-1 turbo with a FAST system, and the camaro will be taking the back burner untill i can get the GN back on the road- but hey having a 10 second regal is fun so its worth it in the end- it still can never top my 3rd gen.