Supercharging support mods
 

Hey guys,

Im looking at the harrop supercharger for my brz which is meant to provide 182 rwkw and 266nm torque (250bhp and 196 ft lbs). Im not going for crazy speed or power, just a nice little boost.My car is a daily driver which will be on the motorkhana/skidpan/track day every month or two for some fun nothing too serious. The car currently has a skunk2 CAI which will probably be removed for the supercharger, and borla UEL catless headers. The main thing is reliability. What kind of supporting mods will i need? I live in sydney so temps vary from 10-40 deg celcius, but in the hotter months i wont be tracking it, maybe just wet skidpan.

Im thinking ill need a new clutch. Will i need an oil catch can or oil cooler? How necessary would all new brakes be, or would upgraded rotors/pads be enough? Cheers guys!


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I'd suggest looking through the Harrop thread on here. It will probably help you.

Since you daily it, but won't be going too crazy, I'd say work on finding a place to give you a solid tune first and foremost. If you aren't driving it too crazy during the summer months (our winter :p), then you could always skip an oil cooler since the Harrop uses a Water-2-Air intercooler. BUT some may say otherwise. Your choice. Your clutch may or may not hold, but you won't need something too crazy. I'm on a stock clutch with my Cosworth kit and it puts out similar power.

Other supporting mods are tires and maybe some suspension stuff. But in terms of engine, I think you have a general idea. The brakes and pads probably need a bump.

Cheers mate, that helps a bit. I didn't see a harrop thread on the front page, I'll look a bit harder :)

I've got eibach pro kit springs on giving a 1.5" drop atm. Not sure of which tyre I'll choose but I'd rather get the car performing how I want then worrying about rubber. Have I got that idea backwards at all?

oil cooler
catch cans
clamp all the intake hoses
likely clutch do it if stock one slips
likely uprated pads and fluid change as minimum if your doing track work increased acceleration and speed. if still not enough then change up.


The intercooler just cools the intake air after compression (which creates heat) of the intake charge air by the SC. Keeping the intake air cool increases efficiency (more power less knock prone)


An oil cooler will keep your oil temps under control, with the extra power and hence heat from the supercharged engine.

Hi Guys.... We fit these on standard cars with no need for any supporting mods as a daily driver.

182KW is pretty easy on the standard clutch. We do have an oil cooler available now too which RRP for $899 AUD and is full kit which includes a custom air dam which funnels air through the horizontally mounted cooler.

I would consider looking at brake upgrades for track work if you find out your running out of stopping power.

regards

Andrew

Link/Pics/Specs ? Sounds very cool and a lot like something I was building utilizing an e46 m3 oil cooler core.

I imagine it looks a lot like an f80 m3 oil cooler setup?

I'd recommend getting Oil Temp, Oil Pressure, and Water Temp gauges so you can monitor the heat. If things are getting hot than you need to increase your cooling capacity with an oil cooler/radiator ducting/larger radiator/hood venting. Also, an AFR gauge is very helpful for tuning and can save your engine if something causes you to run lean under boost.

If you track the car you will need more than the stock brakes. My first supercharged track day was amazing until the the brakes started to overheat after about 8 laps. I'd recommend at the very least fluid, ss lines, and better pads. If that's still not enough to prevent fade, I'd get slotted rotors/brake cooling ducts or a BBK depending on your budget.

Dual catch cans are a very good idea as much more oil vapor is going to be pushed out of the crankcase under boost and you dont want oil in your SC/Intercooler/Maf Sensor/Throttle Body/Intake Manifold.

If your oil is overheating severely with a cooler, you may want to change to a heavier oil such as 5W-30.