:::RHMT::: Real Home Made Turbo

General Category => Forced Induction => Topic started by: jdmhatchracer94 on April 29, 2010, 12:45:02 AM

Title: 2.5" or 3" dp
Post by: jdmhatchracer94 on April 29, 2010, 12:45:02 AM
just wondering pros and cons the stock outlet on my hoslut is 2.5" so should I make a my dp the same size or go 3"?
What will help it more? Just gettin down to the last shit i need to finish before the dyno day.

suggestions comments flames whatever
Title: Re: 2.5" or 3" dp
Post by: bigwig on April 29, 2010, 01:01:13 AM
On a turbo, bigger exhaust is always better.
Title: Re: 2.5" or 3" dp
Post by: jdmhatchracer94 on April 29, 2010, 01:05:35 AM
what about starting with the 2.5" then about 6" down goin to 3". reason the the question is i dont think I have enough clearance for a 3" 90 without hitting the radiator
Title: Re: 2.5" or 3" dp
Post by: ratcityrex on April 29, 2010, 01:29:00 AM
how much power r u going for? Good to hear that you r getting this slut done! If you r going for anything over 250+hp I would go with 3" as soon s you could!
Title: Re: 2.5" or 3" dp
Post by: ryan89crx on April 29, 2010, 01:32:32 AM
If you can fit a 3" DP, why not run one?
Title: Re: 2.5" or 3" dp
Post by: ratcityrex on April 29, 2010, 01:58:23 AM
just wondering pros and cons the stock outlet on my hoslut is 2.5" so should I make a my dp the same size or go 3"?
What will help it more? Just gettin down to the last shit i need to finish before the dyno day.

suggestions comments flames whatever


Bigger is better, I dont care what she told you!! She was just trying to be nice and not hurt you fealings....


But for real, the bigger your dp, the easyer it will be for your turbo to spool up. And it will help the upper part of your powerband a bunch too.
Title: Re: 2.5" or 3" dp
Post by: bigdaddyvtec on April 29, 2010, 02:24:06 AM
4"
Title: Re: 2.5" or 3" dp
Post by: 92CXyD on April 29, 2010, 09:26:27 AM
Should set up a poll for this.

I vote 3" with an anti reversion chamber about 6" down to 3.5 to 4" exhaust w/ two resonators/glasspacks and a magnaflow muffler. ;D
Title: Re: 2.5" or 3" dp
Post by: bigdaddyvtec on April 29, 2010, 12:05:23 PM
Should set up a poll for this.

I vote 3" with an anti reversion chamber about 6" down to 3.5 to 4" exhaust w/ two resonators/glasspacks and a magnaflow muffler. ;D

THat doesnt suprise me coming from mr overcompliccated
Title: Re: 2.5" or 3" dp
Post by: 92CXyD on April 29, 2010, 12:06:37 PM
Should set up a poll for this.

I vote 3" with an anti reversion chamber about 6" down to 3.5 to 4" exhaust w/ two resonators/glasspacks and a magnaflow muffler. ;D

THat doesnt suprise me coming from mr overcompliccated

I knew you would approve. ;D
Title: Re: 2.5" or 3" dp
Post by: narfdanarf on April 29, 2010, 12:25:14 PM
4"

 :yes:  put the biggest shit you can fit on it.  I'd look into modifying the radiator to fit a 3" d/p.  but then again this is rHMT, you can probably run a 1 3/4 schedule 160 handrail and be fine.
Title: Re: 2.5" or 3" dp
Post by: onlyflash944 on April 29, 2010, 06:26:00 PM
the price difference between the two is so small, i'd run the 3".  exhaust turbines work on a pressure differential.  anything after the turbine to reduce restrictions will help.  end of story.
Title: Re: 2.5" or 3" dp
Post by: runsfromdacops on April 29, 2010, 06:35:40 PM
4"

 :yes:  put the biggest shit you can fit on it.  I'd look into modifying the radiator to fit a 3" d/p.  but then again this is rHMT, you can probably run a 1 3/4 schedule 160 handrail and be fine.

this :yes:
Title: Re: 2.5" or 3" dp
Post by: jdmhatchracer94 on April 29, 2010, 08:37:30 PM
thats what I needed to know. I talked to the guy at local exhaust shop about doin 3" from the cat back and he laughed then said it would slow the car down. I was like wtf douche do u have any idea?
Title: Re: 2.5" or 3" dp
Post by: onlyflash944 on April 29, 2010, 08:40:51 PM
thats what I needed to know. I talked to the guy at local exhaust shop about doin 3" from the cat back and he laughed then said it would slow the car down. I was like wtf douche do u have any idea?


mandrel bends.com + hf fluxcore = teh win
Title: Re: 2.5" or 3" dp
Post by: ratcityrex on April 29, 2010, 11:46:37 PM
thats what I needed to know. I talked to the guy at local exhaust shop about doin 3" from the cat back and he laughed then said it would slow the car down. I was like wtf douche do u have any idea?

Tell him to eat shit!! Tell him that your not paying him for his fucking opinion! Do work son!