integranator

iTrader: (2)

I'm not too sure if i should be complaining, but with my maxrev manifold, the welds on the #1 and #4 runners seem to be halfway into the tubing. --- Bear with me here--- exhaust gases will hit into this weld, then go into the rest of the manifold, and it seems like these welds would slow down the flow of the exhaust gases.-- Don't worry, i'll post pics soon of what i'm talking about. Please someone prove me wrong.

Tinker219

the log style manifold is based on pressure, not flow.
so no, a little bit of weld hanging in there will not hurt anything to a noticeable degree....1/1000th of a hp???
pics help though...

TurbothisLS

must show pics to help

BROOD

The effects of those welds would be marginal....borderline negligible on a log style manifold....like said above.


[Modified by SLPR, 8:18 AM 2/19/2003]

integranator

iTrader: (2)

Does anyone host my pics for me...for somereason my computer isn't let me host em' anywhere.

Pat

I'm interested in seeing those pics too. I had a thread on my problems with the maxrev manifold. you can email them to me at pjc22@hotmail.com and I'll
put them up on we-todd-did-racing

Foozball26

loss in power will not be felt, but if you want it to be smooth grind that **** out with a file or dremel. but again it wont hurt

ahobbs

Foozball knows because his max-rev kit is great and one of the fastest Cars i've drivin in.

JCR

Is it true that each max rev manifold will turn out different because its not forged somthing i read in search about it being hand welded or made?

93LSivic

Not really true, its not like they are held together with vice grips that then welded. They are assembled in a jig, so most manifolds will be nearly identicle. Also they are hand welded, not robot welded or anything like that.

As far as the post goes...I wouldnt worry about it man. If your more worried about flow characteristics then start complaining about how the stock LS head flows for ****....almost like its constipated.

Foozball26

antwaine you should feel it now at 15 psi even more fun and less traction

Full-Race Javier

its a log mani...they are put together and welded by hand, no jigs. as for the bead burning through the material, its schedule 40 piping...really thick! in order to penetrate all the way through, the current must have been maxed out. im curious to what this thing looks like.

Overblown-Teg

Your telling us they build these with out a JIG? they just have some really good eyes in order to get all the flanges in the right positions to have the turbos actually fit. While I agree the log portion can be welded without a jig they must use one for the turbo flange. I have also penetrated sch 40 before. Its not that hard. You just need to heat the weld properly.

Tomakit

[QUOTE] They are assembled in a jig, QUOTE]

Tom

Overblown-Teg

Quote(its a log mani...they are put together and welded by hand, no jigs.)Quote

Full-Race Javier

the "pocket" for the turbine flange is cut in a mill and positioned via a jig. that's the only jig used.....everything else is by hand. can i see a pic of your sch 40 weld?

integranator

iTrader: (2)

Now these pictures are when u are looking DIRECTLY straight into the manifold.

See how the weld is directly in the path of airflow? Cuts out like 1/4 of the path.


This one isn't bad:

integranator

iTrader: (2)

What im trying to say is-- it looks like the path of the exhaust gas would just slam into that weld? But maybe im completely wrong, cas' i've seen another manifold look like this as well. It seems like they were in a rush or something, and welded the flange to the tubing off center??

Full-Race Javier

thats not "burn through", the inside of the port is welded to smooth the transition out. you can hog it out with a die grinder but as stated before, it wont make a huge difference. the log manis utilize pressure and heat to spin the turbine....flow isnt really accounted for in a log mani design.

integranator

iTrader: (2)

So should i not care about it?? If i were to try to grind it down, i would start grinding into the actual tubing, and it might be unstable then.

Full-Race Javier

since it's a log mani, i wouldnt grind it down......if u do, there's plenty of material there. it shouldnt be a problem

Pat

at least they welded the inside of those flanges, they didn't on mine

boosted hybrid

Grind it down. I did this on my max-rev manifold, and on my GF's d-series max-rev manifold going on her car. There isnt going to be any side effects from doing so, other than a smoother transition into the manifold.

integranator

iTrader: (2)

Word-- Thnx guys, what do u think i should grind it down with?

Cramerox

i say just leave it alone....u might accidently damaged the weld than all hell will... just leave it alone in my opinion.