after i finish my trans am swap in class i want to make my camaro into a turbo.. i have an 18g turbo from an evolution 5 lancer and a huge greddy front mount with 3 inch in and oulets... problem is i have a 670 cfm holly street avenger and i would like to keep it carbed and i know this is possible.. but my problem is finding a kit to mate a turbo kit to a carb... anyone know of any good ones for less than 3 grand?

 

**subscribe** for the very good info that i know is coming

 

You'll need a "carb hat" basically. You'll also need to tweak the carb. Check on turbomustangs.com for info on how to modify a holley for blowthrough.

I think your turbo will be too small though

 

hmm.. well this turbo only had 78k on it from the start plus its been rebuilt with needle bearings and i know for sure the evolutions 4g63 5 motor put 10 lbs boost through them stock.. if its handling your talking about im not sure thats a problem..

aside from that a carb hat.. like what the vortech superchargers use on their crate supercharged gm motor? i understand the concept but finding a box like that would be costly

thnx for the help though

 

the turbo is too small you requre at least twice as much air NA than the evo's 4cyl. a carb hat is a little cap that goes on top. CSU and Extreme velocity are the two that most use. Allthough you can get the spectre one from autozone/pep boys whatever for about $60 if you dont want to shell out the $$ for a nice one. My advice for a budget turbo is the Master power T-70. Under 600 new shipped and has put many cars into the 9's.

 

Yea, that's what I meant. It's probably a peachy keen turbo for a weenie little import engine, but once you're playing with the big dogs with a decent sized V8, you either need two of them, or a real life sized turbo

A guy made a carb hat out of a saucepan on here ( don't laugh! ). That essentially all it is, as long as it seals it doesn't really matter what it looks like. But if you can pick one up for $60 i'd jump on it.

There's probably other things you need to "boost reference", i'm not sure about these though, i've never done a turbo setup myself. PCV, brake booster, etc.

 

hmm all this does help thnx guys... as for the small turbo hmm...my dad has a supra in his junk yard (dont ask how it got there but he hid it for big buyers) any chance the turbo from a 2jzgte toyota engien can handle im only planning on running maybe 8 lbs i dont want anything rediculous going on..

if i had the cash for a huge turbo trust me id be all over it but i can pull this turbo off the supra for 200 bucks from my dad

 

Remember this isn't an import forum, we have no idea what those goofy number-letter designations mean. For the most part we know the GM ones, LG4, L69, L82, etc etc, but those 2jzgte.... That's new to me. What's the displacement?

Either way, imports only make wee, and extra-wee sized engines, so I still think it's far too small. If it was that easy everyone would be doing it. You'll need two turbos from 2.5-3.0L engines to feed a V8, or a single BIG one, ie aftermarket only basically.

When I say too small I mean you might be able to get 3psi, but it'll be choking your exhaust so bad that 3psi won't be worth it.
You can't really do twin turbos unless they match, in case thats your next question

 

I agree, you need a bigger turbo, shop around, the turbo off a turbo diesel truck would work, a hx40 is a good choice, and fairly easy to find, sell the evo turbo and you should have a decent start on a good turbo, shoot i found mind for $10, the cold side piping shouldn't be too much, and I used a vaccum secondary carb on my build, referenced for boost.

just buy an ebay tubing kit and silicone connectors and a carb hat. rebuild your carb and hook it up. should cost you like $3-400
100 for tubing,
50-100 for silicone connectors
30-50 for a overhaul kit for your carb and
70-100 for a carb hat.

 

[quote=Sonix;3591879]Remember this isn't an import forum, we have no idea what those goofy number-letter designations mean. For the most part we know the GM ones, LG4, L69, L82, etc etc, but those 2jzgte.... That's new to me. What's the displacement?

the 2jz is a dual over head cam 3.0 inline 6 non turbo making a comp ratio of 10:1 and 220 horse.. most all supras came twin turboed using 320 horse at 12 psi these turbos are huge toyota wasnt messing around when they made the supra... these turbos are huge im talking t-77 equivelent huge

sorry not trying to argue imports but i have 2800 to deal with and i have access to piping blow off valves gaskets and front mount for free i am lookin to spend as little as possible and if using this supras turbos makes that happen ima try it

 

you have 5.7L of engine. supra had 3.0L.....you need 2 turbos minimum to make the same airflow requirements.

 

oh ok .. i think im beggining to understand then even though the toyota turbos are quite large they are still made to produce for tha 3.0 not a 5.7... hmm.. well looks like im going to be searching for 1 huge turbo now.. thnx for all the help even considering my stubborness with these import turbo's

 

 

Yea, the math isn't all that hard 3.0 < 5.7 Then again the 3.0L might have spooled to 7000RPM and flowed a ton of air, and the 5.7L might spin to 5000RPM and have less than average heads.... Still though, you can easily make 320HP NA with your 350, so you wouldn't be gaining anything.

If you'd like more convincing (someones word on the internet doesn't seem to have the same convincing power as your own math), find out exactly what turbo it is that you have. Then look up a turbo map from whoever made that turbo.

Then figure out your requirements for your engine (RPM, displacement, guess at the volumetric efficiency, boost ratio desired) and see if they match, or get close. Then you'll come to the same conclusion we have And, better yet, you can fudge the numbers to find out what pressure you would make with that turbo, or at what RPM it would max out.

 

hmm now that you say.. i dont know why i am worried about boosting it when i desperately need to get a new set of heads.. mine work for the firday night street races in my city but if im going to get serious i need to look into some after markets.. and yah i did a lil bit of homework and asked a few of my tech specialist family.. i was told to look around for a turbo off a deisal truck with an equal or higher cid