VCMC 350hp Turbo FR-S Review on Tuned

[OmarGC]

<3

[Frost]

I didn't know race car throttles were either on or off.

I know that they tend to have extremely linear and fast access to massive amounts of power but they are not on/off machines.

Then again, I tend to follow rally racing more than track racing.

Someone correct me or edumacate me.

[Trashed675]

Why gut out the majority of the interior but leave the radio?

[jdzumwalt]

One thing I just noticed is the car did not have a cage. A track car needs a cage. The also after watching the heat is coming from the cooling system not the oil, a larger radiator with a heat exchanger would solve all problems.

Gregg

[Pete156]

They put $20,000 into this car?

[Dezoris]

Originally Posted by Pete156

They put $20,000 into this car?

20k and still not done. I get that it's a work in progress proof of concept, but that's absurd. What series are you going to run a car like that in?

None.

[gchin]

Maybe the power band is too narrow and feels too much like on or off. Seems like VCMC said that they just installed the turbo and may not have had time to refine it.

[cf6mech]

Vented hood like everyone else, oil cooler,....maybe a different radiator, but I doubt it and the heat problems should be fine.

[SUB-FT86]

I'm only impressed about the weight.

[WingsofWar]

Originally Posted by gchin

Maybe the power band is too narrow and feels too much like on or off. Seems like VCMC said that they just installed the turbo and may not have had time to refine it.

ehh your on the right track..

they have effectively moved the powerband down the RPM scale with 9psi. omitting the low end scavenging at 3k the stock frs powerband starts around 5000rpm and peaks around 6800rpm. The FA20 revs more freely, and mating this with a lightweight flywheel will get you to the desirable powerband quicker.

with a quick spooling turbo at 9psi, your looking at a roughly 4k-7k powerband. Its not exactly narrow, its broader. But because its broader in this sense, you can get on power at a much quicker rate. Thats why the FRS feels more on and off.

Narrow powerbands typically take time to build. much like honda's and the FRS where the powerband is a very narrow window found in the upper range of the revboard.



What was unclear about the video to me was how the car experienced heat after 20 min. Which can be attributed to many things. Rad Heat soak from the turbo wasn't as apparent due to some obvious turbo blanketing, but i dont really know how effective they were at keeping ambient temps in control.

How were oil temps? how were intake temps? how were EGTs? how were water temps? how were engine bay temps, what are the provisions in place to aid heat exchange, are they obstructed?...to me these temperature readings are all important when building a track car.

They said open up the front air dam might work, IMO i think they should consider a radiator shroud instead, and shield the core from the turbo, and place a NACA hood ducts to feed fresh air into the turbine housing.

[DriftEightSix]

Originally Posted by WingsofWar

They said open up the front air dam might work, IMO i think they should consider a radiator shroud instead, and shield the core from the turbo, and place a NACA hood ducts to feed fresh air into the turbine housing.

Lower mounted turbo that is already well behind the rads and intercool could that help?

[gmookher]

SC>Turbo
(Heatwise atleast, it will cost alot to pull off turbo application right- see Crawford, that's done right)

[Asterisked Accolade]

I've been subscribed to Drive and FLD for over a year and i was super excited when this video popped up on my feed. I was also glad that Matt Farrah liked it.

[SnapOv3st3r]

Job well done. Although Matt did have a gaf. At the beginning he said it was on Hoosiers, and later he says Hankooks.