Their May Be Hope! PSI........
11-12-08 | 12:43 PM
#33
Not to dampen enthusiasm, but it remains my belief that the ECU won't help much.
TOMs can change the ECU in japan and their supercharger runs a whopping 0.8 lbs more boost than the LMS one does on the stock ECU. (and takes 100 octane fuel to do that much)
It's the 12:1 compression that is the enemy to boost here, not the lack of ECU programming.
The Camry engine by the way has a 10.8:1 CR, so it's unsurprising it can handle more boost.
They added 67 hp at the engine, so probably around 55 at the wheels. That's a whopping 15 more than the LMS supercharger adds... and with the benefit of no parasitic loss from turbo vs. blower.
So they're like running, I dunno, maybe 6 lbs, and all of that extra lb thanks to the lower CR.
I suppose if they could have the lower CR -and- ECU flashing they could let it use 100 octane fuel and maybe manage 7 lbs, but that still doesn't help us much.
I'd love to be wrong, but I remain pretty sure a 12:1 CR isn't going to get much over 5-6 lbs of boost on just pump gas no matter what you do with the ECU
TOMs can change the ECU in japan and their supercharger runs a whopping 0.8 lbs more boost than the LMS one does on the stock ECU. (and takes 100 octane fuel to do that much)
It's the 12:1 compression that is the enemy to boost here, not the lack of ECU programming.
The Camry engine by the way has a 10.8:1 CR, so it's unsurprising it can handle more boost.
They added 67 hp at the engine, so probably around 55 at the wheels. That's a whopping 15 more than the LMS supercharger adds... and with the benefit of no parasitic loss from turbo vs. blower.
So they're like running, I dunno, maybe 6 lbs, and all of that extra lb thanks to the lower CR.
I suppose if they could have the lower CR -and- ECU flashing they could let it use 100 octane fuel and maybe manage 7 lbs, but that still doesn't help us much.
I'd love to be wrong, but I remain pretty sure a 12:1 CR isn't going to get much over 5-6 lbs of boost on just pump gas no matter what you do with the ECU
Like I said above some time ago, you're holding your breath for nothing.
The camry turbo system doesn't add significantly more power for its CR than the existing supercharger options for the 2IS add. And they're not very attractive options.
Waiting around for someone to magically invent a way to add a lot of boost to a motor with a 12:1 CR is a waste of your time.
If you want a bit of boost, despite the outrageous cost for the gains, you have options right now. There was so little interest in this though that LMS discontinued their kit.
If you want to add at least as much power for cheap for the track, Jeremy has shown you the way there with nitrous.
If you want a lot of boost you're going to need to use a different engine (or rebuild yours with custom parts and a significantly lower CR, which'll cost you more than just getting a faster car)
04-13-12 | 06:26 AM
#37
And i feel like Kurtz is right about this thread, that it wouldnt open up any huge gains if our ECU was opened up.
04-19-12 | 10:58 AM
#38
04-19-12 | 11:47 AM
#39
custom rods, custom pistons, custom valve springs, custom valves, custom cams, highly customized heads, custom intake manifold, custom fuel system (not direct injection), and a standalone ECU so good luck running the OEM dash and lux features on it.
04-19-12 | 12:40 PM
#40
He's basically using a stock 2GR-FE (which isn't the motor in the IS350) cylinder block... and everything else is custom.
custom rods, custom pistons, custom valve springs, custom valves, custom cams, highly customized heads, custom intake manifold, custom fuel system (not direct injection), and a standalone ECU so good luck running the OEM dash and lux features on it.
custom rods, custom pistons, custom valve springs, custom valves, custom cams, highly customized heads, custom intake manifold, custom fuel system (not direct injection), and a standalone ECU so good luck running the OEM dash and lux features on it.
You'll notice they're going to look into direct injection as well. which means D4-S is really just around the corner.
I'm more interested in what he said about the engine:
Mr Kittle has utilised several of Toyota’s 3.0-litre engines in his creations, and says the new 3.5-litre V6 has the strength to cope with the enormous horsepower it produced for the Jimco 2000.
“The new 3.5-litre engine has a very strong bottom-end, with its six-bolt main steel crankshaft which we run unmodified,” Mr Kittle said.
“The engine is pretty much bullet-proof, and our goal has been to make the power smooth and useable.”
What's here is not a solution so much as a similar problem that's been solved. Most of us won't be running the immense amount of custom parts listed. But most of us won't want (need) 800hp.
the dollar/hp ratio is anything but static but drop that 800hp to say, 400 or 500hp with minimal custom parts....
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