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is 3" exhaust on N/A TD42 too big ?

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is 3" exhaust on N/A TD42 too big ?

Post by InSanE »

I am planning on putting a turbo on my truck over the next 12 or so months but im due for a new exhaust just wondering if 3" with extractors will work well on a NA TD42 or will it cause more harm then good?
GQ LWB TD42, boost, lockers etc

http://forum.mudrhino.com.au/viewtopic.php?t=262&start=30
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Post by Tomo_89 »

just wait till you turbo it and then put a 3 inch on it.. 3 inch on an n/a you will have to redline it to get any torque
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[quote="Bluefreak"][quote="ofr57"]flex is over rated :finger:[/quote]

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Post by Dzltec »

If you want to future proof yourself, then do it. Just remember you will have to get and engine and dump pipe made to suit the turbo.

I really dont think it will effect your performance too much, but have never had a vehicle to dyno before and after to prove so.


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Re: is 3" exhaust on N/A TD42 too big ?

Post by madrolla68 »

InSanE wrote:I am planning on putting a turbo on my truck over the next 12 or so months but im due for a new exhaust just wondering if 3" with extractors will work well on a NA TD42 or will it cause more harm then good?
Fit it for future turbo setup ,BUT our dyno shows that extractors and 3" systems on N/A TD42's lose usable power and torque.

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Post by Guy »

Install your extractors and 3inch system, but get a small section of two inch pipe put in between the extractors and the rest. You will need to do a dump pipe from your turbo anyway, so it is no real loss.
If you firn that you want to go three inch all the way replace the 2 inch bit that you had made up ( bolted flanges)

The exhaust will only flow as well as it's most constricitve part.
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Post by figjam_1985 »

it will be loud with no muffler :D
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Post by bogged »

figjam_1985 wrote:it will be loud with no muffler :D
Mine wasnt that bad with 3in no muffler.. but its like power, everyones opinion is different.
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Post by Guy »

bogged wrote:
figjam_1985 wrote:it will be loud with no muffler :D
Mine wasnt that bad with 3in no muffler.. but its like power, everyones opinion is different.
NA or Turbo ..

Turbo does a remarkable jobas a muffler.
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Post by Tomo_89 »

non turbo without a muffler is farkin loud... trust me. the turbo really does cancel out a lot of noise. If your going to go turbo then why bother with the extractors? If you really want 3 inch then just do it up to the flange on the header pipes and this way it will bolt up to the dump pipes that come with turbo kits... extractors are just a waste of money if your going to get a turbo any time soon. I got them but wish i had just gone for the turbo straight away. it would have saved me a lot of money.
01 td42 GU patrol ute, with extra bits and pieces.
[quote="Bluefreak"][quote="ofr57"]flex is over rated :finger:[/quote]

You drive an IFS too, huh...???

:D[/quote]
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