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2.5" exhaust without extractors

Tech Talk for Cruiser owners.

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Joined: Thu Feb 23, 2006 10:42 pm

2.5" exhaust without extractors

Post by sambo2222 »

Just a quick question. I have seen on prevoius topics some ideas for increased performance from the 2.8D Hilux 3L, being 2.5" exhaust and extractors and K&N air filter. Not to mention a Turbo. My question is will just a 2.5" exhaust and K&N filter do the trick or does the 2.5" exhaust need the extractors. Also if I fit a 2.5" exhaust now and fit a turbo later will I have to change the exhaust again?

Any comment would be greatly appreciated.
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Post by whiteknight »

what i said on 4lux :)

I wont bother retyping it..
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Re: 2.5" exhaust without extractors

Post by pridhac »

sambo2222 wrote:Just a quick question. I have seen on prevoius topics some ideas for increased performance from the 2.8D Hilux 3L, being 2.5" exhaust and extractors and K&N air filter. Not to mention a Turbo. My question is will just a 2.5" exhaust and K&N filter do the trick or does the 2.5" exhaust need the extractors. Also if I fit a 2.5" exhaust now and fit a turbo later will I have to change the exhaust again?

Any comment would be greatly appreciated.
My 2p.

If you want your motor to last, use either Toyota air filter elements, or fit a Donaldson type aircleaner.

On my 2H, I recently fitted extractors (off eBay, $50) and 2.5" exhaust.
This mod made noticeable gains in power delivery. I do not think a larger bore exhaust on its own would make an appreciable difference.
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Post by chunderlicious »

exhaust and air filter will make a difference, extractors make it very noticable, and different brand extractors make different improvements. the exhaust will be fine with a turbo. BUT when you fit the turbo the exhaust will have to be changed to fit the turbo so you may aswell fit 3 inch new exhaust..... lol, but 2.5 will be fine.
turbos are nice but i'd rather be blown
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Post by MR04WD »

Ring AXT or DTS Turbochargers.....you WILL NOT have to change your exhaust to 3".DTS turbo-chargers are dynoed with best power delivery tests coming from a 2 1/2",this is what they recommend for best results. Yes,the turbo has a 3" dump pipe off the back of it,but an exhaust shop will reluce the size to meet 2 1/2" no worries.I did exactly this just recently....had extractors & 2 1/2" exhaust,but needed more poke,so I bolted on a blow-dryer ;) Still have extractors sitting in garage,PM me if you want em!
OVERKILL ENGINEERING
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Post by MR04WD »

Ring AXT or DTS Turbochargers.....you WILL NOT have to change your exhaust to 3".DTS turbo-chargers are dynoed with best power delivery tests coming from a 2 1/2",this is what they recommend for best results. Yes,the turbo has a 3" dump pipe off the back of it,but an exhaust shop will reluce the size to meet 2 1/2" no worries.I did exactly this just recently....had extractors & 2 1/2" exhaust,but needed more poke,so I bolted on a blow-dryer ;) Still have extractors sitting in garage,PM me if you want em!
OVERKILL ENGINEERING
www.overkill4x4.com
(02) 94766137
Posts: 15
Joined: Thu Feb 23, 2006 10:42 pm

Post by sambo2222 »

thanks heaps for all your help everyone. I think I will do the 2.5" exhaust and extractors for starters and then when i get approval from the minister for war and finance (Wife) i will go the turbo.
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Post by Toy80Diesel »

sambo2222 wrote:thanks heaps for all your help everyone. I think I will do the 2.5" exhaust and extractors for starters and then when i get approval from the minister for war and finance (Wife) i will go the turbo.
I agree on the exhaust, but why purchase the extractors? they won't be used for the turbo...
Shut Up, Get Out, & Start Digging...
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Post by MR04WD »

Toy80Diesel wrote:
sambo2222 wrote:thanks heaps for all your help everyone. I think I will do the 2.5" exhaust and extractors for starters and then when i get approval from the minister for war and finance (Wife) i will go the turbo.
I agree on the exhaust, but why purchase the extractors? they won't be used for the turbo...
Hes talkin about extractors in the mean-time until the handbrake will let him go turbs!
OVERKILL ENGINEERING
www.overkill4x4.com
(02) 94766137
Posts: 15
Joined: Thu Feb 23, 2006 10:42 pm

Post by sambo2222 »

MR04WD wrote:
Toy80Diesel wrote:
sambo2222 wrote:thanks heaps for all your help everyone. I think I will do the 2.5" exhaust and extractors for starters and then when i get approval from the minister for war and finance (Wife) i will go the turbo.
I agree on the exhaust, but why purchase the extractors? they won't be used for the turbo...
Hes talkin about extractors in the mean-time until the handbrake will let him go turbs!
spot on. but at the moment just to throw confusion into the equation I am reading about LPG injection. Has me thinking as myself and my mate stuff around a fair bit with NOS ( ski boat and fairlane) Might have a couple more beers and think about it some more
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