Supercharging and track days?

[tosha]

Completely understand they are different. Someone who's had the track days needs to respond.

Stock PP1 with supercharger will start getting into overheat on CHT within few laps.

I wish I didn't do the SC to be honest. Constant battling and chasing solutions with heat is one of two biggest reasons why I moved on to a different car for track days.

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[RTR077]

Stock with Roush SC.

I do have to keep a close eye on CHT - I have no cooling mods. To that end I typically run for 12-15 minutes per session, which is fine with me. Of course, ambient temps will help/hinder.

Based on my own experience, a SC doesn't add much value to your track time....but it is fun!

 

[tosha]

SC doesn't add much value to your track time....but it is fun!

Totally agreed on both

 

[Boyd]

@tosha and @RTR077, thank you for honest responses. This is my fear, that my car won't be any fun to do the fun stuff anymore. And I'm not a street racer (anymore... lawman took all the fun outta that) nor a Parking Lot Champion. I dont want my fun time cut short because something I've done to the car makes it incapable of handling me. Track days cost too much for that.

So I'm going to pass on supercharging. Thanks!!

 

[Boyd]

Stock PP1 with supercharger will start getting into overheat on CHT within few laps.

I wish I didn't do the SC to be honest. Constant battling and chasing solutions with heat is one of two biggest reasons why I moved on to a different car for track days.

Gotta ask... What was the 2nd reason?

 

[John Papageorgiou]

170 deg Reische thermostat, engine and trans oil coolers and interchiller tell tuner to turn cooling fans early and your good to go.

 

[EFI]

170 deg Reische thermostat, engine and trans oil coolers and interchiller tell tuner to turn cooling fans early and your good to go.

Is that from experience? What sort of temps are you running after 15 minutes on track with the Whipple?

 

[tosha]

Gotta ask... What was the 2nd reason?

Financial - cost of consumables and the car itself, sending it into a wall or blowing up the engine is too much for me. Also, too much stuff that still needs to be done to make it really good on track and no time to do it on my side.

This is my fear, that my car won't be any fun to do the fun stuff anymore.

I took it to the track last week, and I can tell you it's too much power, you can't use it except for straights. and even on the straights... I decided to floor it at around 70mph and barely caught it from kissing the wall. The way it pulls after 100mph is addictive though

 

[qwiknotch]

Totally agreed on both

The front straight at Buttonwillow is fun as hell. Glad I have 15" brakes. Lol

 

[gsxr1300]

Doesn't the Mach1 have the cooling upgrades from the GT500?

 

[EFI]

Doesn't the Mach1 have the cooling upgrades from the GT500?

I think the radiator might be different on the 500s than the PP/Mach/350 one but I could be wrong.

Everything else should be the same yes, but the Coyote motor has higher compression and it will put out more heat than the 5.2 Predator so the same cooling capacity won't be enough. Then there's also the hood which does quite a bit of cooling on the 500 that won't happen on the Mach.

 

[tosha]

I have fully vented racelouvers hood, radiator that is 2x size vs pp1, fully ducted front, opened up grill, and I still don't take it out if it's more than 70F ambient. I short shift all the time. I have fried both of my cats and if I keep running it, piston rings failure is just a matter of time. The engine is not designed for this, and no amount of highway pulls examples will change that. Yeah, someone did a 150 pull and it went fine, great achievement. Try to do it on an uphill repeatedly from 40mph for 30 minutes with no cool down. Then multiply it by 8 - that's just one day. Multiply by 20 for a year if you're any serious about it.

High speed track with lots of elevation change like WGI is always a heat management struggle instead of learning to drive the car. This power is mostly unusable despite having 305 square tires setup. It may be fine for beginner, but I wouldn't recommend it at all for anyone beyond that.

 

[Boyd]

I have fully vented racelouvers hood, radiator that is 2x size vs pp1, fully ducted front, opened up grill, and I still don't take it out if it's more than 70F ambient. I short shift all the time. I have fried both of my cats and if I keep running it, piston rings failure is just a matter of time. The engine is not designed for this, and no amount of highway pulls examples will change that. Yeah, someone did a 150 pull and it went fine, great achievement. Try to do it on an uphill repeatedly from 40mph for 30 minutes with no cool down. Then multiply it by 8 - that's just one day. Multiply by 20 for a year if you're any serious about it.

High speed track with lots of elevation change like WGI is always a heat management struggle instead of learning to drive the car. This power is mostly unusable despite having 305 square tires setup. It may be fine for beginner, but I wouldn't recommend it at all for anyone beyond that.

Thank you for your honest and experienced opinion.

 

[tosha]

Thank you for your honest and experienced opinion.

For sure, I'd love to see some other real opinions that either confirm my experience, or provide a path to a working solution. I am looking into some options for next year and would be great to discuss those with others having experience here. For example, I do want to try to play with throttle mappings for different gears and modes with PCMTec, so that lower gears have reduced torque output for better modulation and less heat generated, and have 5-6 gears for top speed. I don't fully give up yet

Unfortunately, there is a lot of bad advice from people who either read something somewhere, or extrapolate street races experience to track setups. This "put 170F thermostat and all your problems are solved" was the absolutely terrible way to spend money. It may be a good idea for a car that's sitting in Florida traffic and then needs to do a highway pull, but it's useless for sustained loads, and it makes things worse in cool weather driving. I'm planning to send it to trash bin first thing after winter.

 

[Biggsy]

I think a supercharged set up can work but I believe it’s best to know the type of event it’s going to be used in. 20-30min sessions maybe not. But I know of 2 that just compete in time trials so for 2-3 laps they are fine.

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