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Post by skooda on Aug 23, 2005 18:43:03 GMT 11
I have seen a similar idea done on a rx7 but insted of running through both coolers he split the flow to go through them both at the same time (if that makes sense). It was a hill climb/ club day car and he was happy with the results.
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Post by Benzev on Aug 23, 2005 22:41:06 GMT 11
I agree a snorkel is the way to go!! Lengthening your intake path increases engine torque and with a snorkel the added bonus of cooler air! An intercooler before the turbo would seriously affect your performance in a negative way! A turbo creates low pressure(vacuum) before it so if you obstruct the intake with another intercooler you restrict the air volume able to come through which would overload your turbo! Air after the turbo is pressurised and isn't affected by the restriction of an intercooler(unless the intercooler was way too large for the capacity of the turbo).It's all about air volume which is the reason for the existance of the turbo and intercooler! Cool air takes up less space! It's like 1+1=2-1 if you put that intercooler before the turbo!
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Post by Graham on Aug 28, 2005 2:27:34 GMT 11
An intercooler can only cool air to ambient temperature, and hopefully the pre-turbo air is already at ambient temp, so it's not worthwhile.
The benefit of a frount mount intercooler (after the turbo) is that the cooling efficiency is better with speed and there is no heat soak from the engine into the top-mount intercooler. The disadvantage is that due to the larger air capacity of the piping, it will take a little longer for boost pressure to develop, so more 'lag' is introduced. I don't think it would hurt a 3.1 but it seems the 2.8 engines take a little longer to come on to boost.
Cheers! Graham.
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Post by geeves on Aug 28, 2005 19:37:47 GMT 11
Very true . Also a disadvantage of front mounted intercoolers is that they fill up with mud off road. If youve never had to take your radiator out to clean it this might not be a problem.
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Post by Benzev on Aug 31, 2005 21:07:22 GMT 11
Cross a few rivers after swamping that should keep it clear!  |
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Post by maletimaru on Sept 4, 2005 15:27:35 GMT 11
Heehee with my Mu I am lucky to have the ute so my snorkel will be well clear of water going behind the front driver's seat where the rear window is!!! lol
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Post by geeves on Sept 4, 2005 20:00:08 GMT 11
Im guessing your going to run a pipe under the body then up through the floor of the tray. Should look good and work well. Dont use Marly under the floor section or a stray rock is bound to get it. I would use 4 inch stainless steel or aluminium for at least this part even if it does cost a wee bit more. Anything else is just too frajile.
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Post by maletimaru on Sept 7, 2005 23:06:14 GMT 11
Nah hah!!!!
I am going long way round!! lol I am going up through bonnet and over windscreen and roof!!
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Post by mattmu2 on Oct 21, 2005 17:25:48 GMT 11
hey guys (and gurls) im new, i just brought a 3.1 mu and was wondering if there was much point in intercooling it if so were would you recoomend it be placed and were can i source one from?? as well as is it easy to fit your self or am i better off geting it installed for me?
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Post by geeves on Oct 24, 2005 15:57:23 GMT 11
Count on about 5 - 10 kw improvement with no other work. Fitting on a 3.1 Mu isnt straight forward as the turbo is sealed and cant just be turned to suit as on the 2.8. Read all the posts here there are lots of good ways to do this but its not simply a bolt on accessory. Youll have some engineering to do depending on which method you use wether it be a front mount custom job or a complete transplant from a bighorn including the turbo and scoop
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Post by anthonyqld on Nov 8, 2005 13:01:50 GMT 11
Any more pics of the scoop
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Post by geeves on Nov 8, 2005 14:47:44 GMT 11
just sent a pic to your hotmail. Sorry its a little dark
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Post by Jimmu on Mar 22, 2006 22:26:03 GMT 11
The top mount cooler I have does not have a line tapped into it to run boost gauge off.
I am also guessing that the boost compensator would be running of this line as well?
Would I be better off tapping a hole for the line before the core, in the core or after?
A close to the intake as possible would give the best reading I should think but I am not sure where there would be possible...
I notice the pics above it is running from the inlet side of the core.
Jimmy
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Post by jeremp on Jan 13, 2007 4:56:49 GMT 11
All the pics are red Xs. Can you repost them?
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