Im having heat issues with my 2.1 zvh, on a long run its fine, motor ways fine, general cruising is sweet, but as soon as i do short full boosts it gets realy hot pretty much at the top of the gauge.

Would i benifit from a oil cooler ?

Turbo cooler ?

Disconecting the water feed from turbo ?

Any info appreciated

 

There should be a sticky thread about this! LOL.

What rad do you have?

 

Is it just a problem with the zvh ?

Im running a radtec alloy rad with a huge pro alloy 500 cooler in front

 

I'm running pro-alloy rad and IC... But also have an Aritec turbo cooler which made a massive difference on full boost temps....

This is as the water heated by the turbo is ordinarily returned to the cold side of the radiator..therefore heating the water back up before it re-enters the block!?!?

The little turbo cooler now takes some of the temp out of the returned turbo coolant..
I am however not running a massive spec engine..Just blueprinted 1600cvh with kent cam, chip and -31 actuator.

Hope this sheds some light for you mate.

 

Ive herd good thing about the turbo coolers im going to order one i think, where have you mounted it mate ?

 

Well the Airtec one I bought is really easy to fit. It uses the original mount for the standard IC and bolts through the little hole next to the near side headlight.
Unfortunately it wont fit if you have a standard IC and rad.
Mine came with silicone hose and all the fittings, not to bad for £70.00.
If you got for the pro-alloy one its a bit harder to fit, unless you have their front mount IC and it bolts straight to it! Even though I have the Prolloy IC I did however go for the Airtec as it's half the price......

 

turbo cooler wont solve your problem,if your getti plenty of airflow to the rad thens theres a prob elsewhere,thermostat workin ok?

 

you running twin fans with this ic.?

 

Yeah mate got a twin fan setup although they arnt that big

Havnt checked the thermostat, ive herd about a lower degree item is this correct ?

 

saff lower degree switch. fans should be at least 10 inch. Marcus.

 

Get a switch wired into the fans, so you can have them on/off at your pleasure!

What size fans you got? Might need to buy new ones if you say they aint that big

 

iv got twin 10s on mine sound like thermostat to me, try a 75 or 83 degree 1

 

The radtec intercooler I have fitted to mine is designed to allow air passage to the rad also.

I bet the fins to your intercooler are very thin but compact robbing the rad of its cool air. You should have the setup i.e. rad/int designed by 1 company. Have a look at the fins on a genuine RS500 intercooler and you will see they are spaced quite wide to give the rad some air also.

 

Take the thermostat out and see if it still gets hot as quickly....if it still runs way too hot with no stat at all you've got problems elsewhere as the radiator will be cooling as well as it's ever going to with the stat out, as in the water will be flowing round the rad from cold.Wouldn't advise running no stat in cold weather tho.

 

im in the same boat mate but i think im going to try some better fans first!

 

As above, Rad' may be very sludged up if a bit long in the tooth, may need beefier fans (have you checked Fans are spinning in the right direction???)

Good mod' ( and cheap too) is to fit a 82 degree 'stat & 88 degree fan switch

 

Thanks for all the info people

Where can i get the diferent stat and switch from ?

Has any one tried drilling the thermostat ?

Measured my fans earlier and they a measly 9"

Been looking at some high powered 12" bad boys from burtons they expensive though

 

Got my stat & fan switch from Burton ( think 'bout £10 for the pair) but no doubt cheaper elsewhere.

Have you checked fan direction??

 

Yeah fans are going the right direction but jus not big enough.

Its off to jamsport tomorrow gonna have a chat with jamie and see what he thinks

 

hi paul do you wana sell the engine as its so much grief????