Boost for Mountain car?

[BAYoung]

Hello! I been out of the Mustang game for a few years, but decided to come back with a 2021 GT premium 401a car. Magride, 10 speed, active exhaust, B and O speakers, etc.

I moved from Texas to Wyoming for work, and since I will be living pretty much at the bottom of mountains, have decided to build my car for an aggressive cruiser/mountain carver. Have full suspension going in this winter, with wheels, tires, front hubs, and going to have a go at MMR GT350 CCBs next year.

I want to boost the car eventually. Looking at a whipple kit. Will have a vented hood, oversized heat exchanger, bigger radiator, etc, even though it doesn't get that hot here. Will be doing a Fore fuel sytem for E85 as well.

Any ideas, thoughts, comments, or to call me an idiot? Let me know!

pic of my car. vv

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[Idaho2018GTPremium]

Since you’ll be at high elevation you can run a bit more boost than at sea level to get more air pumping through it. So, smaller pulley for the win!

 

[SheepDog]

Do it!

Considering that you are at about the same altitude as I am, similar conditions exist.

One thing to note is that stated boost levels from whatever kit you decide on, will produce about 3 PSI less at 5,000 ft.

 

[BAYoung]

Do it!

Considering that you are at about the same altitude as I am, similar conditions exist.

One thing to note is that stated boost levels from whatever kit you decide on, will produce about 3 PSI less at 5,000 ft.

About 10psi and e85 is the plan. Its not gonna be super crazy. Douglas is 4850 altitude.

 

[BAYoung]

Since you’ll be at high elevation you can run a bit more boost than at sea level to get more air pumping through it. So, smaller pulley for the win!

I plan on about 650whp.

 

[SheepDog]

About 10psi and e85 is the plan. Its not gonna be super crazy. Douglas is 4850 altitude.

If you want to see 10 PSI, pulley for 13 PSI

 

[BAYoung]

If you want to see 10 PSI, pulley for 13 PSI

Im really thinking about 650whp, but ill keep it in mind nonetheless!

 

[SheepDog]

There are all sorts of great roads in Western Wyoming to enjoy your car on, with generally no people, and Wyoming has some of the best maintained roads in the country.

 

[SheepDog]

Im really thinking about 650whp, but ill keep it in mind nonetheless!

10 PSI actual will get you right around 650-700 at your altitude, which equates to more like 800 wheel at sea level with the same pulley which would generate 13ish PSI. Whipple or anyone else will advertize their boost pressure at sea level for a given diameter pulley. If you buy a 10PSI pulley, you will really see like 7 PSI, Which at 5,000 feet will net you closer to 580-600. You have to account for not only the loss of boost pressure, but that no matter what you will still make 20% less power than at sea level.

As an example, my pulley is rated for 14PSI at sea level. I see about 10.8-11 PSI at 7700 RPM. my corrected HP was 838 wheel which is about what it would make at sea level, on 14 PSI. My actual uncorrected HP at this altitude with 10.8 PSI was 700 Wheel

Also to consider is DA, or Density Altitude which factors in the density of the air relative to temperature and barometric pressure and humidity. The DA on this pull was 7054'

 

[ice445]

You definitely want an upgraded radiator if you live at altitude, even with NA power. I'm just to your left, and every time I would go into the mountains with the stock rad, the temps would love to creep into the 230's after a long climb. With the PP rad or an aftermarket one and shutters locked out, it rarely even gets above 200 now unless it's some monster pass.

 

[BAYoung]

You definitely want an upgraded radiator if you live at altitude, even with NA power. I'm just to your left, and every time I would go into the mountains with the stock rad, the temps would love to creep into the 230's after a long climb. With the PP rad or an aftermarket one and shutters locked out, it rarely even gets above 200 now unless it's some monster pass.

Im a performance pack car. Sorry if i didnt put it in there. And i plan on vented hood and fenders and big heat exhchanger.

 

[horsepower addiction]

I would run a centrifugal torque booster system and a boost controller. You will not have to worry about any fluctuations in boost from altitude. It will make the same boost from sea level all the way up to Denver. And with the 10r80 you will make boost so fast you will almost swear it is a P.D system.

 

[BAYoung]

I would run a centrifugal torque booster system and a boost controller. You will not have to worry about any fluctuations in boost from altitude. It will make the same boost from sea level all the way up to Denver. And with the 10r80 you will make boost so fast you will almost swear it is a P.D system.

Im just limiting the car to about 650. Im pretty set on a whipple, I'd consider ESS, but eh.

 

[5550snotamerc]

Don't neglect the brakes . Not sure where you are in WY but Teton pass elevation is 8,400 and Burgess Junction in the east is about 8,000 so that is about the max. Compressed air will definitely help with that.

 

[BAYoung]

Don't neglect the brakes . Not sure where you are in WY but Teton pass elevation is 8,400 and Burgess Junction in the east is about 8,000 so that is about the max. Compressed air will definitely help with that.

I will be living in Douglas i think. My plan is MMR carbon ceramic brakes for the gt350. Apex wheels with 295 or 305 fronts and 305 rears.

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