Anybody using OBX forward facing headers? Pics please!
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Car: 1986 Trans am
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Transmission: T56 6 speed
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Anybody using OBX forward facing headers? Pics please!
Interested to see how some of you have your turbo setup done using the OBX (ebay) forward facing headers. VERY intgerested in single turbo setups especially using these. A buddy just bought them for his 91 bird and we want to get some ideas. The fit kind of sucked on the drivers side, but after some brake line re-routing and a bit of "clearencing", we got them in. Planning on cutting off the T3 flanges and welding on some 2.5" V-bands and going from there.
#2
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Re: Anybody using OBX forward facing headers? Pics please!
i'm also very interested in this . im subscribed
#3
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Car: 1986 Trans am
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Re: Anybody using OBX forward facing headers? Pics please!
My buddy and I started fabricating his single turbo kit with them. We cut the T3 flanges off the ends and welded on some 2.5" V-bands. I will post pics ASAP. Merge pipe is almost done. Got sick of waiting for replies lol, so we'll be the guinea pigs!
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Car: 1986 Trans am
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Re: Anybody using OBX forward facing headers? Pics please!
Pics as promised of where were at so far with my buddies setup. Merge pipe is finished for the most part. Just have to connect it to the turbo. Then we'll make the downpipe and it should be good to go! The headers actually worked out pretty good, and look sweet in the engine bay!
Sorry for the crappy pics. They're off my buddies cell phone. I'll get better ones once we get more work done.
Sorry for the crappy pics. They're off my buddies cell phone. I'll get better ones once we get more work done.
#5
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Re: Anybody using OBX forward facing headers? Pics please!
so they would clear my ac unit then ? thats what i been worried about .
#7
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Re: Anybody using OBX forward facing headers? Pics please!
i'm gonna put the turbo where the battery is an move it to the trunk . i'm gonna see is i flip my shorty header upside down if if it will work like that first . the obx is by second choice . i showed know here a few weeks tho .
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#8
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Re: Anybody using OBX forward facing headers? Pics please!
where did you plumb the oil cooler into ? sorry i'm off topic but i been wondering about this an since your in the middle of thhis build ...
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Car: 1986 Trans am
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Re: Anybody using OBX forward facing headers? Pics please!
Not running an oil cooler on his setup. If you meant the turbo oil feed line, it's "T'ed" into the back of the block right behind the distributor. Theres an 1/8 inch threaded oil port there where some years had an oil pressure sensor.
#10
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Re: Anybody using OBX forward facing headers? Pics please!
where are running the oil line back from the turbo to ? my oil pressure senser is in the spot you mentioned so i'll just have to t it there
i'm thinking about useing the fuel pump block off plate to run the return line to
i'm thinking about useing the fuel pump block off plate to run the return line to
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Re: Anybody using OBX forward facing headers? Pics please!
Thats where we have this one drained to...the fuel pump block off plate. Works good!
#13
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Re: Anybody using OBX forward facing headers? Pics please!
Couple new pics with my digital camera. Finished the merge pipe. Just have to fab up the downpipe and get the wastegate in there!
#14
Re: Anybody using OBX forward facing headers? Pics please!
Nicely done. Is that a rear spring isolator holding up the turbo? Why you did not go with a bigger pipe size after the y merge?
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Re: Anybody using OBX forward facing headers? Pics please!
And the piping that was on the setup before this was only 2" so this is WAY better than it being 2.5". Turbo setups in my experience do not need big merge pipe tubing because in the end it just causes you to lose exhaust gas velocity and slow down the spool.
#17
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Re: Anybody using OBX forward facing headers? Pics please!
make sure you ceramic coat the piping and the ex housing on the turbo....being right there it will heat up the hood quite a bit.....im using the forward facing headers too and im in the middle of redoing my crossover and down pipe due to under hood temps as well as the hood getting too warm
also where are you intending on putting the waste gate?
also where are you intending on putting the waste gate?
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Car: 1986 Trans am
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Re: Anybody using OBX forward facing headers? Pics please!
make sure you ceramic coat the piping and the ex housing on the turbo....being right there it will heat up the hood quite a bit.....im using the forward facing headers too and im in the middle of redoing my crossover and down pipe due to under hood temps as well as the hood getting too warm
also where are you intending on putting the waste gate?
also where are you intending on putting the waste gate?
#20
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Re: Anybody using OBX forward facing headers? Pics please!
i even had mine wrapped and a turbo blanket on my turbo....still got pretty warm under there....i have a feeling you will encounter higher engine temps but i may be wrong....keep me posted on how hot it gets while your spoolin that turbo for a good period of time.
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Re: Anybody using OBX forward facing headers? Pics please!
i even had mine wrapped and a turbo blanket on my turbo....still got pretty warm under there....i have a feeling you will encounter higher engine temps but i may be wrong....keep me posted on how hot it gets while your spoolin that turbo for a good period of time.
#22
Re: Anybody using OBX forward facing headers? Pics please!
Thanks for the pics. The way those fit in is very interesting, and may prove useful for figuring out what to do on my project.
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Re: Anybody using OBX forward facing headers? Pics please!
How close were they to hitting the steering box? What about header bolts are they a b*tch to fit? I use 1 1/4 Allen head bolts on mine with no problems at all but the header design seems to interfere and not allo for much room between the pipes and flanges but I could be wrong
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Car: 1986 Trans am
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Axle/Gears: Dana 44 w/ 3.55's
Re: Anybody using OBX forward facing headers? Pics please!
How close were they to hitting the steering box? What about header bolts are they a b*tch to fit? I use 1 1/4 Allen head bolts on mine with no problems at all but the header design seems to interfere and not allo for much room between the pipes and flanges but I could be wrong
Pretty sure those are the ebay OBX's. Look just like my buddies. Looks good so far!
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Car: 1991 Formula Firebird WS6
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Re: Anybody using OBX forward facing headers? Pics please!
I have a quick and maybe stupid question, why a merge pipe? why just not run 1 passenger side front facing header, plumb to turbo, and run a shorty on the other, Y piping in nearly the original place of the factory exhaust?
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Re: Anybody using OBX forward facing headers? Pics please!
Thanks Diggler, I am in the plan/start spending phase on my Formula, planning a single turbo build, already have a set of shortys on my car, and know I am going to have to buy/make at least one for the turbo, was thinking about getting a front facing set, and just leaving my shorty on the drivers side after the motor build. I figure a bank of 4 will spin a decent sized turbo up just fine instead of trying to feed all 8 to one turbo (because that, in essence, is what the merge pipe is for). I don't like the idea of running exhaust between the radiator and harmonic balancer.
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Re: Anybody using OBX forward facing headers? Pics please!
all 8 exhaust ports will need to be routed into the turbo. you can run your shorty header down, under the motor, and back up to the turbo, but you wouldnt want to simply run one side of the engine to the turbo and the other side out the back.
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Re: Anybody using OBX forward facing headers? Pics please!
I know this thread is over a year old but is there any update on the headers. Im looking at getting a pair and was just wondering if u had any negatives to say about them. Ta
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