Lexus developing million dollar super car - report

[S2kphile]

Can we get his color on the FRS/BRZ in the future? Please!

[Longhorn248]

Originally Posted by S2kphile

Can we get his color on the FRS/BRZ in the future? Please!

It will probably be a cheap $25k optional color

[Sport-Tech]

Originally Posted by Longhorn248

It will probably be a cheap $25k optional color

Too bad, I would have been all over this. Not a big fan of the car's appearance but that paint is awesome.

[ahausheer]

I thought lap times didn't matter?

[Dark]

Originally Posted by ahausheer

I thought lap times didn't matter?

No, it doesn't matter, but maybe I got infected when I went to autoblog too much.

[Dimman]

I dislike the LFA because Lexus high-jacked the project that was going to be a Supra replacement. Aluminum chassis with a V8. Car got adapted to the LFA and became carbon to offset the Lexus luxury weight gain and the V10 was specd the year after Toyota's best F1 season. Old motor got put into the ISF.

Could've had a 400+hp 3400 lb aluminum Mk5 Supra to mix it up with the GTR at more sensible price.

[Dimman]

Originally Posted by serialk11r

I don't think so, the key to carbon fiber trickling down should be a more automated process, and I don't think they broke much ground there.

Drivetrain is again not anything new (why didn't they make it 7 speed gearbox? :/) either. I wonder if they figured something out as far as low speed combustion stability goes seeing how the engine revs so high, but I think I'm probably just forgetting something simple.

A new hybrid supercar like I said would possibly give them more experience with electric drive but as far as motor controllers go there's not much to mess with, battery (and energy storage in general) tech isn't going to just radically change, and motors are going to be cost limited on lower end models.

The LFA is sort of a committee car. But if the committee had an unlimited budget. A LOT of the decisions were highly influenced by the anticipation of F1 success as a tie in.
A lot of questions (such as changing to a V10 and the primitive gearbox) can be answered by 'because (F1) racecar'.

As for the carbon tech there was a lot of automation involved with regards to something like a multi axis CNC loom (or something). Plus I think something about carbon reinforced automated molded thermoplastics.

As for low speed filling it has a 3 stage variable geometry intake system which will likely contribute there (Yamaha).

In my opinion the LFA was (and still is) an absolute slap in the face to Toyota performance loyalists.

The GT86/FR-S and BRZ are the apology.

[Dark]

Originally Posted by Dimman

The LFA is sort of a committee car. But if the committee had an unlimited budget. A LOT of the decisions were highly influenced by the anticipation of F1 success as a tie in.
A lot of questions (such as changing to a V10 and the primitive gearbox) can be answered by 'because (F1) racecar'.

As for the carbon tech there was a lot of automation involved with regards to something like a multi axis CNC loom (or something). Plus I think something about carbon reinforced automated molded thermoplastics.

As for low speed filling it has a 3 stage variable geometry intake system which will likely contribute there (Yamaha).

In my opinion the LFA was (and still is) an absolute slap in the face to Toyota performance loyalists.

The GT86/FR-S and BRZ are the apology.

Another slap in the face is coming, and it's twice as hard. LOL
As for Supra MkV project, I can understand why they axed the project. Even Infiniti version of GT-R and NSX were axed too at that time.

[serialk11r]

Originally Posted by Dimman

The LFA is sort of a committee car. But if the committee had an unlimited budget. A LOT of the decisions were highly influenced by the anticipation of F1 success as a tie in.
A lot of questions (such as changing to a V10 and the primitive gearbox) can be answered by 'because (F1) racecar'.

As for the carbon tech there was a lot of automation involved with regards to something like a multi axis CNC loom (or something). Plus I think something about carbon reinforced automated molded thermoplastics.

As for low speed filling it has a 3 stage variable geometry intake system which will likely contribute there (Yamaha).

F1 cars have 7 speeds, not 6 :P The V10 is cool though!

How is carbon fiber fabric usually made? I know the layup and stuff is the biggest cost problem with CF, not the material itself.

I wasn't talking about filling, I was talking about the fact that the ports are very high flow and the valve lift is likely huge, so there's very little charge motion at low rpm.

[Dimman]

Originally Posted by Dark

Another slap in the face is coming, and it's twice as hard. LOL

Funny thing is every time I see the LFA I love it. (Only supercar I took pics of at the autoshow...)

Love the car, hate the ideological BS that killed the Supra and prevents me from ever buying an LFA, EVEN IF I WIN THE FRICKEN LOTTO!

Does this mean I'm kinda into automotive S&M???

[Dimman]

Originally Posted by serialk11r

F1 cars have 7 speeds, not 6 :P The V10 is cool though!

How is carbon fiber fabric usually made? I know the layup and stuff is the biggest cost problem with CF, not the material itself.

I wasn't talking about filling, I was talking about the fact that the ports are very high flow and the valve lift is likely huge, so there's very little charge motion at low rpm.

Transmission was single auto clutch when vastly better twin clutches were around.

Can't the acoustic pressure differential increase low speed intake velocity?

[serialk11r]

Originally Posted by Dimman

Transmission was single auto clutch when vastly better twin clutches were around.

Can't the acoustic pressure differential increase low speed intake velocity?

Don't think it's going to do much.

By the way, I totally support their single clutch transmission choice. Weight savings, basically equally quick shifts. They just needed more gears, it's a fucking 9500rpm 4.8L V10 for god's sake, 6 gears doesn't do it justice at all. 7 or 8 gears is a requirement in my book. 7 if they want "because racecar" (it's an automated transmission, shift times should not be a problem), 8 if they wanted acceptable mpg at the cost of like 3 pounds.

[Dimman]

Originally Posted by serialk11r

Don't think it's going to do much.

By the way, I totally support their single clutch transmission choice. Weight savings, basically equally quick shifts. They just needed more gears, it's a fucking 9500rpm 4.8L V10 for god's sake, 6 gears doesn't do it justice at all.

Real world reviews make the single sound terrible in normal use. Should've had a manual option at least but paddles are F1y. Difference between it having the paddles and the GTR is that by all appearances the LFA is rather more lively and sensitive to the driver. The paddles are kind of out of character. But such worthy owners such as Paris Hilton are far more suited to comment than me...

As for the intake acoustics you don't think that an effective ~10-12 psi could kick start the intake
charge?

Edit: it has a very good torque spread, btw.

This is why the 86 is sort of an apology, can't say they didn't get a ton of relevant experience to apply to our car.

[serialk11r]

Ah I see. Real world use. lol. In the name of weight savings? That's good enough an explanation for me :P

Effective 10-12 psi? I don't know how the variable intake system actually works, but high lift, kinda short stroke, big ports don't build much velocity. The sound wave travels quite fast and I imagine most of the charge is in the cylinder already before it does anything.

Cramming air into the cylinder doesn't make it burn better, you need the fuel to be well mixed. Increasing pressure doesn't really help the fuel atomization that much, I don't think at least. It could possibly make it worse since the injector pressure is effectively lower. Of course these sorts of acoustic pressures are small and brief so that wasn't totally relevant.