here is what i have......a 1985 t/a awaiting a new 383 stroker with 11:1 hyperutectic pistons, 64cc combustion, 200cc intake with 2.02/1.60 aluminum heads, .480/.480 lift melling cam, edelbrock performer rpm intake with a edelbrock 750cfm performer carb.


i want the best exhaust set up that i can afford. i want a 3" single cat setup. i was lookin at the hooker 2460 but the yipe shrinks down to a 2.5" outlet y pipe. is there anything that is 3" all the way? i would appreciate any help and info that i can get.

 

I think you'd be best going with long tubes,but SLP's flow the best for shorties....at a price that is.
Good luck,
Mike

 

how much are slp's and can u do a 3" system the whole way?and if so do u know of any part numbers?

 

I second the LT headers. Check out Hooker 2210s or the LT hedmans if you want to do it on the cheap side. Check out some of the other exhaust set ups on the board to see some tricks in keeping ground clearence.

My plan was to run Hedman LTs with the 3"-2.5" S extentions, then a flowmaster scavenger Y with the 2.5 dual in and single 3" out and then pick up a 3" catback, and trim to fit. Ive now decided to just run the 2.5"extentions into a Hpipe I have laying around, and continue duals out to the axle and dump it there. Some have clearenced the tranny crossmemeber to help tuck the exhaust closer to the car by about a 1/2" or so

 

what is everyones thoughts on the edelbrock tubular exhaust systems? since i can get a 2.5" inlet with 3" outlet y pipe to match their headers. does anyone know of how well they perform?

 

stay away from the edelbrocks. i have had slp's on my stock 350 and they were a good header. i then sold the slps and went with edelbrock (dont ask me why cause i dont know) on my 383. didnt like them and people told me to go with long tubes. so i went with hooker 2210 and omg what a difference. my personal experience will tell you not to waste your time with shorties and just go with the lt's

 

A 383 is too much for Edelbrock 1-5/8" primaries. You really should try to go 1-3/4" for that engine...so SLP's,Hooker and I think Hedman.

 

I'd look for a 1 7/8" long tube personally.

 

What about Hooker 2055 shorties with 3" Y pipe? Seems to be pretty standard around here...

 

so far i cant seem to find a descent set of headers with a 3" y pipe everything is 2.5". the only thing i saw were the edelbrocks with a 2.5" in and 3" out. and that is for an 86 firebird on up to a 92 but i dont see why it wont work for an 85 anyway butg who knows maybe it wont but i was willing to try it anyway. if someone has some part numbersfor a y pipe that is at least 2.5" in and 3" out or 3" in and 3" out to go with a set of headers i would appreciate it. thanx all.

 

I'd fix this;
first.

Then yea, long tube 1 3/4" headers.

 

why what is wrong with my cam?

 

doesn't really match the combo. Big firebreathing tire smoking parts, then a weenie old melling cam...? I'd go bigger on the cam with 200cc heads, i'm guessing .480 lift is around 230* duration, with some lazy ramps on it right?

Just a wild guess

 

I ran the TES system last year on my Minirammed 383 along with a Hooker Aerochamber cat-back from Thunder Racing.

Stay away from it??? I'd say not if you need to have a budget exhaust system!

My Edelbrock TES equipped motor made 396 RWHP and also powered the car to a first place trophy in the 2005 NFME's autocross event. I also managed a best ever 12.40 at 114.5 MPH last October.

So there. Is that good enough?

Yes the TES will restrict the 383 over a set of Long Tubes. However they are a whole lot easier to insall and cost a whole lot less. Right now I am putting in my long tubes, but it's been rather involved, with new motor mounts, and modified K-members, and a new transmission crossmember, and a custom Y-pipe. So it is definitely NOT a cheap and easy upgrade. It'll make a difference I am sure, but as an interim exhaust, I dont think you can go wrong with a set of 6872's from Edelbrock, plus a Carsound slip-fit three inch cat converter and a Hooker Aerochamber cat-back from Thunder Racing. For less than $750 you can have all brand new stuff from the cylinder heads back to the tailpipe.

 

i think right now the heads are only set up for a max lift of .500 so for now i think it will be ok. how much of a difference can .020 lift make? it is all together now and i dont feel like ripping it apart and redoing the heads. ive been waitin to put it in and cant really afford to redo things right now. im confident that i will get a great deal of horsepower out of it. hopefully in a ballpark of 450? if im wrong please tell me.

 

well no, .020 lift won't do much....
what's the duration on that cam?

It's just it's kinda small cam, compared to everything else... I was thinking you'd do a .550" lift cam, 240ish intake duration type of thing.

No idea what power level that'll make. Should be pretty good, no matter what. I'd say sub 400HP at the crank though. Just my wild guess.

 

i really cant remember what the specs are on it. i'll have to call the place that i got itfrom tomorrow and find out but i thought it was 230 duration.
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[quote=ws6transam]

My Edelbrock TES equipped motor made 396 RWHP and also powered the car to a first place trophy in the 2005 NFME's autocross event. I also managed a best ever 12.40 at 114.5 MPH


what was your rear end gear ratio and how does my engine setup compare to yours?

just wondering what i can expect out of my motor.

 

melling 22301 specs



287/287 230/230@ .050"
.480/.480 lift 107 111

 

Taking a wild guess, I'd say it's going to be 400 HP at the crank. It's still going to be decent fun, and should have plenty of torque off the line. 108 to 110 MPH at the top end of the track?

 

how much does the hp differ from the crank to the rear wheels?
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what was your rear end gear ratio and how does my engine setup compare to yours?

just tryin to see what kinda track time i met get thanx

 

Usually fifteen to twenty percent. I use eighteen percent with a manual transmission a rule of thumb. Thus, 400 crank = 330 RWHP. I'd guess you would be in the high 12's, 108 MPH kind of territory.

 

Hey man I know where your coming from. I just dropped in a 383 into my 87 GTA and have been looking for a y-pie 3 incher and it seems to be that they are just not out there. I have the hooker shorties and there y-pipe is only 2.5. Most of these systems were designed for the stockt 5.0 and 5.7. That has been my experience dont let me discourage you though I sure would like to see you find then you can let me know! I tried some hedman longtubes but since my car is lowered, with the sportline springs, there just wasnt enough clearence to fab up the exhaust without going between the crossmember. Which is what I was tryng to avoid because of the excessive heat on the trans. Your best option in my opinion, which is what I believe I am going to do now, is to go with a set of long tubes and aquire an aftermarket crossmember designed to clearence the exhaust coming back off of the long tube collecters.

 

Hooker 2055 is the only shorty I know of with a Y-pipe that has a 3" outlet.

 

I think the best and easiest one to install would be a set of Dyno dons headers (1 3/4) with his y pipe, and then buy a mufflex 3.5 catback along with an ultra flo muffler. That combo should have unrestricted flow up to 500 hp at the motor. I am working on that right now with my combo.

 

I think the best and easiest one to install would be a set of Dyno dons headers (1 3/4) with his y pipe, and then buy a mufflex 3.5 catback along with an ultra flo muffler. That combo should have unrestricted flow up to 500 hp at the motor. I am working on that right now with my combo



where can i get these parts and part numbers. i am looking to upgrade my motor to around 500hp and i onlly have edelbrock headers and 3in hooker cat back so i will need to upgrade my exhaust.

 

Check the exhaust boards for dyno don. He makes and sells them, no website or anything just pm him. If you google mufflex performance you will find their website for the 3.5 catback. and jegs or summit sell the ultra flo muffler

 

what is the estimated total cost for the headers and the whole exaust? also are they long tubes???? i just dont want to bother him if i dont have the money ready to buy them and i want to know what it will take. thanx vinnie

 

roughly 1200

 

do you know if they are long tubes or not and how much just the headers are by themselves cost since i will buy them first.

 

they are shorty headers that are bolt in with no mods. You have to pm dyno don to get a price! In my opinion long tubes lower your ground clearance and are a pain to install, but you will see a little more power, how much? I can't see it being to much. Its a hard decision to make

 

yeah i really want long tubes but i dont think i ever seen any 1 3/4 shorties so i dont know what kind of power difference there would be either. like you said i dont think there would be much difference at all especially with a 3 1/2 system the rest of the way. i think that would be almost just as good as true duals with long tubes. thanx vinnie

 

Look into SLP shorties. They are 1 3/4 and they also have the 3" y-pipe avail. for those headers and would only be around $800 all together. Or maybe able to find a used set with the y-pipe on ebay. I just sold my set with the y-pipe on ebay and you can pick the up used for between $350-$600 complete.

 

For that kind of money look at Dyno Don's Headers and Y pipe. 1 3/4" shorties in many configurations. Do a search for his name, lots of info and PM him for pricing.