Submitted: Friday, May 09, 2014 at 18:16
ThreadID: 107695 Views:1394 Replies:4 FollowUps:0
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has anyone had extractors fitted to a 4.5l patrol and if so has is improved the performance of the motor?
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Reply By: Tony H15 - Friday, May 09, 2014 at 23:30

Friday, May 09, 2014 at 23:30
I fitted extractors to a 2.4 litre naturally aspirated hilux diesel years ago, made enough difference for me to fit them to every diesel I owned after that - except the turbos obviously. Big difference to consumption, from 10 LP100 to better than 8 on both 2.8 diesels, but only a slight difference to power.
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Reply By: Batt's - Friday, May 09, 2014 at 23:55

Friday, May 09, 2014 at 23:55
To get the full benefit of the extractors you should do the rest of the exhaust system in the same size pipe as the extractors. I have never done a 4.5 ltr troll but have done plenty of other vehicles and have always been impressed with the gain in power. Usually it helps the economy a bit because you will now use less throttle to get the same results when you settle back into your driving routine after you have fun playing around with the extra power. Make sure you buy a quality brand not cheap stuff to get better results.
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Reply By: MAVERICK(WA) - Sunday, May 11, 2014 at 00:09

Sunday, May 11, 2014 at 00:09
yes.....revs quicker and can hold the revs a bit longer. As said you need to go the whole way and do all the exhaust through to the back. make sure you get a decent straight through muffler to assist. Sounds good as well just don't expect any great increase in fuel economy - that requires the right foot to operate "sensibly". rgds
Slow down and relax......

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Reply By: Member - Scott M (NSW) - Sunday, May 11, 2014 at 08:24

Sunday, May 11, 2014 at 08:24
Can't speak for the Patrol but my old HJ47 didn't have extractors, the new one does - big difference to the engine performance - new one revs better and blows less smoke.
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