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4JG2 Intercooler install

Getting the best performance from your Isuzu
TimboTheKiwi
Posts: 28
Joined: Tue Aug 15, 2017 7:21 pm

4JG2 Intercooler install

Post by TimboTheKiwi »

Hi all,

I have a 4JG2 UCS69 Wizard - Looking for some clarification. I have a intercooler off a bighorn I found cheap and am wanting to fit this. As oppose to cutting a hole in the bonnet and getting a scoop which is a bit of work, I was intending on fitting a wee 10" fan to the underside of the intercooler.

Question being, will the intercooler touch or rub up against the bonnet if there is no scoop cut out?


Appreciate any advice.
tonkamu
Posts: 109
Joined: Sun Jan 01, 2017 9:18 pm

Re: 4JG2 Intercooler install

Post by tonkamu »

Not sure if the wizard is more like a Mu or bighorn, im thnking its more of a mu? If it is the same size as a mu engine bay wise, you won't be able to fit a fan or the intercooler plastic shroud with out making new shorter mounts or having a body lift that drops the engine abit into the bay. FYI you need an opening in your bonnet to get an air flow with out outside air you might aswell forget about a fan and just have the intercooler.
Dinger95
Posts: 30
Joined: Sun Mar 11, 2012 4:12 pm

Re: 4JG2 Intercooler install

Post by Dinger95 »

On the bighorn there is a rubber baffle that contacts the top mount intercooler, not sure on the wizard if it would contact the bonnet or not.
Without the hole in the bonnet you would just be pulling hot engine bay air over the cooler, in their stock config they get heat soak from the engine and some add fans to the topside to compensate.

You would likely be better off with a intercooler front mounted, if you want to leave the bonnet stock.
TimboTheKiwi
Posts: 28
Joined: Tue Aug 15, 2017 7:21 pm

Re: 4JG2 Intercooler install

Post by TimboTheKiwi »

Thanks for the advice chaps.

Not sure if it's all worth it getting a FMIC plumbed up, but the heat soak issue mentioned does make sense.

Will keep thinking.

Thanks again :)
rustyvr4
Posts: 12
Joined: Tue May 08, 2018 5:07 am

Re: 4JG2 Intercooler install

Post by rustyvr4 »

i have the mu. same motor etc as your wizard. going for fmic. https://www.trademe.co.nz/motors/car-pa ... 401461.htm will also use https://www.trademe.co.nz/motors/car-pa ... 401524.htm this will allow for a gap beside radiator for intercooler plumbing to run. as i,m not into off roading so clogging up fmic wont be a problem.
rustyvr4
Posts: 12
Joined: Tue May 08, 2018 5:07 am

Re: 4JG2 Intercooler install

Post by rustyvr4 »

20190215_162359.jpgi have no air con in the way for this placement. stage 1 complete. more to come.
DonaldNZ
Posts: 57
Joined: Mon Dec 31, 2018 10:49 am

Re: 4JG2 Intercooler install

Post by DonaldNZ »

Anyone know if a bighorn bonnet with scoop fit the wizard ?
if it does I'd consider taking the two tone hit of a different bonnet colour so I could run a inter cooler.
DonaldNZ
Posts: 57
Joined: Mon Dec 31, 2018 10:49 am

Re: 4JG2 Intercooler install

Post by DonaldNZ »

I did help with the wiring for a air con cooled inter cooler kit from aussie on a 500+hp commodore that had a switch on the dash that would divert ac from the cabin to the inter cooler heat exchanger, the word was it made a very significant improvement and he could def feel the extra kick of power. Our question would be at 120hp would the benifit cost in hp be worth it. not to mention the $k's in blinging it parts and setup.
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geeves
Posts: 1980
Joined: Mon May 11, 2009 1:56 am

Re: 4JG2 Intercooler install

Post by geeves »

The bonets don't swap but a dremmel will make the scoop fit
isuzurob
Posts: 480
Joined: Mon Jun 18, 2012 3:25 am

Re: 4JG2 Intercooler install

Post by isuzurob »

If your wanting to make power ac is the last thing you want to be using
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