Extractors

Submitted: Friday, Jun 18, 2004 at 16:36
ThreadID: 13894 Views:1464 Replies:4 FollowUps:2
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Hi everyone, I have a 100 series cruiser powered by a 4.5 litre petrol engine. I am thinking of trying to improve the fuel economy by fitting extractors. Currently I get 16.8L/100km on highway running. Has anyone out there tried this mod? - I fitted extractors to my 2.8Hilux and the improvment was around 12%.
thankyou, pricetec.
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Reply By: tour boy - Friday, Jun 18, 2004 at 18:09

Friday, Jun 18, 2004 at 18:09
This may be a silly question, but don't they have them fitted standard like the 80 series 4.5 did?
AnswerID: 63795

Reply By: V8troopie - Friday, Jun 18, 2004 at 22:37

Friday, Jun 18, 2004 at 22:37
If you are after economy, fit a diesel engine ;-)
My 75 series troopy gets 14L/100km, city running, with a 6.2L V8 chevvie diesel engine.
Klaus
AnswerID: 63829

Follow Up By: flashnick - Saturday, Jun 19, 2004 at 00:17

Saturday, Jun 19, 2004 at 00:17
Doh - I think he was only looking at spending $3-400

Nick
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FollowupID: 324994

Reply By: Member Eric - Saturday, Jun 19, 2004 at 08:18

Saturday, Jun 19, 2004 at 08:18
If you want to go back wards , then fit them, The standard exaust on a 4.5 is a header system , this is much better than any other extractor you can get . You also wont get the ptoblems of melting everything in site ( which happens with extractors) . If you want a little more grunt swap the exaust pipe for a mandrel bend with some flow through mufflers . if you want economy get gas fitted
AnswerID: 63866

Reply By: Member - DOZER- Saturday, Jun 19, 2004 at 13:15

Saturday, Jun 19, 2004 at 13:15
Gday
i have fitted extracters on my 80 (they come std with headers aswell as your 100) and found that it made the exhaust noisier, and any increase in economy would be minimal. I would not recommend you spend the 8-1100 dollars asked for a set, but rather get a unichip fitted to your std motor.
As Eric said, you cant beat a std system for best overall quiet performance.
Andrew
b4 you bag me out, walk a mile in my shoes, then your a mile away and have my shoes :)

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AnswerID: 63915

Follow Up By: pricetec - Monday, Jun 21, 2004 at 08:52

Monday, Jun 21, 2004 at 08:52
Thankyou all for your replies, Yes the diesel is the way to go - infortunately for the same money I would have had a 8 year older truck. I had noticed that there was a reasonable header system on it and could not see a lot of improvment in the extractor headers. Both systems simply run 123 and 456 out together whereas the tuned system on the Hilux is 14 23. The system for the cruiser is massive and would certainly present heat problems - the local exhaust man has fitted a number of extractor systems to turbodiesels even brandnew 100's but has no experiance with petrols and it looks like he won't gain any from me. thanks for your advice.
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