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Mmmmmm ... it's to be a 3.5 motor
Lot's of controversy on extractors .... Do a search on the subject....
I would put my doe into a good 2.5inch exhaust system and keep the headers
But ... It would be good for a "Blower kit" Powerrrrrrrrr
and a new dizzy system i hear ... Haltech???
I spent a long time trying to find this said nut & couldn't.Quote:
Originally Posted by mike 90 RR
There is a space no the shaft for the fan that has notches for a spanner to go on to, but I couldn't see how it would unwind anything. So I undid the bolts holding on the pulley wheels & pulled them toward the fan to check out the shaft - it runs directly in to the water pump with no notches there either, so I figured if I took off the water pump the whole shaft would come off anyway? :) So the fan belts already off lol
Spent hours looking for what you described.
NFI on the new dizzy system... Steve?? :)Quote:
Originally Posted by mike 90 RR
same with the exhaust system, I think its 2.5 or 2"
mmm, controversy?? for what fuel lol
or getting them running right?
mmm
/me goes off on search
Quote:
Originally Posted by RaZz0R
If you can ... put it all back (fan belt) and try it ... should take 20 miniutes ... (it's only one belt & a tensioner & the 4 bolts to the pulley)Quote:
Originally Posted by RaZz0R
yeah I'll do that tomorrow ;) cheers
still looking for the 3.5 and extractors in search & not getting anything ??
Ditto .... IM still looking for it too ... can't find the post i was after ;)Quote:
Originally Posted by RaZz0R
One of the boys basically spoke of readings given out on the Dyno
Put a post up in technical .... Extractors Yes or No?? :wasntme:
My theory is that they arn't restrictive /// only if you get bigger heads / ports will you need them (Larger ports)
Catch ya
mmmm, pitty ya all the way over there in WA, sounds like a convo to have over a beer :)
Might get over there when al this & a bit more is done - via alice of course haha.
mm, so are not restrictive.... only if you do a port job & get bigger heads....
Knowing more about bikes then cars in this department, I'll give this a shot.
So if that be true, your limits are only going to be your exhaust ports/ and or cams, if you bolt on extractors & a good system.Quote:
How do extractors work?
On a standard engine, burnt exhaust gases are dumped from the combustion chambers (cylinders) into a single piped manifold, which is attached to the exhaust pipe.
This dumping cause’s turbulence in the manifold, since there is not enough space for all the exhaust gases, a higher level of engine back pressure is created, making the engine work harder to force out exhaust gases, wasting engine power.
Because the exhaust gases cannot get out of the manifold, into the exhaust system efficiently enough, some of this gas is forced back into the combustion chamber, diluting the air/fuel mixture. Robing your engine of more horsepower and resulting in fuel combustion efficiency being reduced, causing the engine to run hotter and wear faster.
The system is a 2.5" full system, so mixed with the extractors, which are really just like big bore headers, it should flow as free as the ports will allow & perhaps a little more then the stock headers allow.
Tuning might be a small issue tho with the standard ECU, I want a new one anyway, but just down the track. biggest issue might be some popping till the standard one is tuned as much as it can be (If it can be??) I think most can be done in 5% increments??
But I'll keep on looking as a snorkel will be fitted as well.
Don't get me wrong .. Extractors do work .. but the head/motor needs to be Hi performance .... On 2 stroke bikes// they just luv them (tuned pipes)
If you have a good look at the design of the cast iron one that you have, you will notice that it is a two piece flow design (Casting as a 1 piece) that "turns" towards to 2 pipe exit
Another thing is .. motors need "some" exhaust back pressure to work properly .. not total freeflow
Bang for buck speaking .. At $600 ... not worth it (in my opinion)
But .. the 2.5inch system with straight through muffler ... worth it
I would dump the original muffler if it has the Landrover stamp on it
Performance wise .. I would stick my money on this http://www.aulro.com/afvb/discovery/...powerchip.html
The computer is found in 1990 onwards (black box) ... I think you have the silver box
My thoughts only
:) this has started a good convo wth my house mate as well hehehe
But yeah, at the end of the day if you want to it 100% right, a port & flow with shaved heads is the way to go. Back pressure comes from the pipe itself, set sections with set bends & the mufflers as well. :) It will work & maybe get 5 ~ 10% increase, but I am not doing it for performance, I am doing it coz I got them & coz I need a new pipe system anyway :) In the future I might go ahead & do a port or shave the heads.
Powerchip :) Now I found both a black box & silver one. The black on was attached on to rubber piping from the airfilter to the efi air intake, the silver one I found behind all that bolted on to a bracket. I figured the silver one to be the ECU & the black on to be the sensor for air intake?
Hey Mike,
Thanks for that info - the fans off :D
and I managed to undo the nuts for the pipes to the headers :) so headers are off!! YAY!
Going back out soon to do more ;)