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Exhaust / Extractors for GQ on gas

Tech Talk for Nissan owners.

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Exhaust / Extractors for GQ on gas

Post by XXL Maverick »

How much should I pay for a decent exhaust / extractors set up for my 94 Mav dual fuel??? Is there enough extra power to make it worth it? :?: :?: :?:
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Post by bazzle »

Not in my opinion.
Just put onn a 2 1/4 exh and flow thru muffler.

bazzle

edit: 2 1/2" exh :)
Last edited by bazzle on Fri Aug 13, 2004 12:31 pm, edited 1 time in total.
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Post by XXL Maverick »

Thanks Bazz.... How many beer vouchers would that set me back. Only had it for 'bout a month. Haven't looked that far into it yet. As with everything; have HUGE plans but limited funds. :cry:
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Post by blkmav »

I payed $700 fitted. Did it make a difference? I upgraded from 31s to 34s at the same time and didn't notice a difference in performance. So I guess it did make a difference. Sounds great in the bush too!
Weekdays - Prado GXL D4D with some stuff
Weekends - Mav shorty with lots of stuff
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Post by ludacris »

Put on the extractors because performance will increase noticibly.Dont forget the straight through sports muffler and no bigger than 2 and a half inch exaust system.Try and get pacemakers as you can wrap them.
Cris's 4 X 4 Accessories & Suspension 0404 736 325 Rock Sliders From $499
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Post by EricB »

Who is good to use in Melb?

I was just quoted $750 for pacies and a 2 1/4 straight through system.

He said 2 1/2 can be a bit loud with no extra gains.
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Post by blkmav »

These guys did mine -
Performance Exhaust
49 New St Ringwood
9870 4977

These guys are also good -
Starr Performance
13a Ceylon St Nunawading
9894 8860
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Post by EricB »

Was it $700 with Pacemakers?
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Post by blkmav »

Genie
Weekdays - Prado GXL D4D with some stuff
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Post by CJ Burns Esq »

When you get it done check the specs of the extractors as some are made for top end power and some for torque. If you're in the bush alot you want torque and this may explain why some have had no noticable top end improvement with their new extractors.
I did the extractors and a 2 1/2 in mandrel bent system on my 3.0l petrol and the low down performance has increased substantially and more than overcome the loss I got from fitting the 33" Coopers onto it. It used to struggle at low revs now it just plods along.
Also a K&N cleanable filter.
CJ
CJ
http://www.4wdlinks.com.au/gallery/cjburns7
http://cjburns7.tripod.com
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Post by Draven »

Doh, now im confused....in a previous thread I thought a 2 1/2 inch exhaust was to big for a 4.2 petty ? Like a loss of bottom end torque or something ??
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Post by EricB »

Does anyone know if pacemakers are good for low down power or higher revs?
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Post by marin »

Draven wrote:Doh, now im confused....in a previous thread I thought a 2 1/2 inch exhaust was to big for a 4.2 petty ? Like a loss of bottom end torque or something ??


From what i have heard, if you go LARGER than 2 1/2, you start to lose bottom end.....
Rum injected

TD42T shorty... got some bolt on and some custom stuff.

Read about it [url=http://www.patrol4x4.com/forum/showthread.php?t=18848]here![/url]
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Post by EricB »

When getting Extractors for my GenIII i know different brands had different improvements. Also some were 4 into1 ,or 4 into2 into1
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Post by LOCKEE »

I used Unique Exhausts in Bayswater, do a lot of comp trucks.

Pacemakers, 2 1/2" Press Bends and Stainless Straight through muffler dearer but will last with Comps and hard 4x4 use. My last GQ use to eat mufflers from revving hard and then engine braking.

Dynoed on the weekend. Std had 55 KW at the wheels. Electronic Ignition and new exhaust = 70kw at the wheels. Not mallacca horsepower but actual.

Dearer for the system but well worth it.
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Post by EricB »

LOCKEE wrote:I used Unique Exhausts in Bayswater, do a lot of comp trucks.

Pacemakers, 2 1/2" Press Bends and Stainless Straight through muffler dearer but will last with Comps and hard 4x4 use. My last GQ use to eat mufflers from revving hard and then engine braking.

Dynoed on the weekend. Std had 55 KW at the wheels. Electronic Ignition and new exhaust = 70kw at the wheels. Not mallacca horsepower but actual.

Dearer for the system but well worth it.



Nice gain, how much was the system and what headers did you use?

How much was the Electronic Ignition?
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Post by bazzle »

Hopefully the power increase was at realistic revs like when you need it in the bush or general driving.
ie. 1500 to 2500rpms??

Bazzle ;)
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Post by EricB »

My TB42 is lacking from 1500-2000rpm :?
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Post by Draven »

Yea..what mods have ya done ? I found that decent electronic ignition helped a lot
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Post by EricB »

What brand?

No mods to engine yet I just did a major service to get her in good nic
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Post by Draven »

Well...Im 'really' not sure what ignition...but a MSD coil and LPG leads
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Post by LOCKEE »

Sandy from Aus4wd for ignition

Main Power is from 2250 to 4600 RPM, fine for the driving and comp work I do.
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