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I meant to mention this earlier, but I'm also concerned about engine block availability in the States. In Japan, for example, I think you can buy a crate G16 motor from Toyota, but it is limited to Japanese residents only. With the car already being fairly limited in volume, how are third party parts manufacturers going to develop for the platform without relying entirely on donor cars?
 

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2017 Lexus IS350, 2007 Toyota Camry, 1995 Toyota MR2, 1996 Honda Acty
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What do you guys think about an E85 conversion? It can be beneficial with Florida temperatures.
To me, it doesn't seem to be worth it for my power goal of 400-450 WHP. If I stayed on pump gas, I wouldn't need to upgrade the fuel pump, which seems like a complicated ordeal on this car.
 

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Good points. Availability of E85 is a challenge. Racetrac stations are the only fuel stations with E85 in my area. If the GR Corolla is a daily driver then it may not make much sense. If it’s a second car then E85 can work.

If you want over 400whp with E85 then you’ll need to upgrade the fuel pump. Also the question is how much is enough. Not sure I want to go over 400whp since it puts too much strain on the head gasket, studs, and awd system. It’s nice to have options either way.
 

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Good points. Availability of E85 is a challenge. Racetrac stations are the only fuel stations with E85 in my area. If the GR Corolla is a daily driver then it may not make much sense. If it’s a second car then E85 can work.

If you want over 400whp with E85 then you’ll need to upgrade the fuel pump. Also the question is how much is enough. Not sure I want to go over 400whp since it puts too much strain on the head gasket, studs, and awd system. It’s nice to have options either way.
Motive says in the video that the stock fuel pump can handle 400 on pump gas but not on E85 because E85 requires considerably more flow.

Furthermore, the failing point of the head gasket/studs happened close to 500 WHP.
 

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I thought they achieved 380whp with E85 on a stock fuel pump?
Yes the head gasket busted at 500whp but it doesn’t mean there isn’t strain been built over time between 400whp and 500whp. Time will tell what these engines are capable of doing.
 

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I thought they achieved 380whp with E85 on a stock fuel pump?
Yes the head gasket busted at 500whp but it doesn’t mean there isn’t strain been built over time between 400whp and 500whp. Time will tell what these engines are capable of doing.
On E85. You need a lot more E85 to make the same power than you do on pump gas. On pump gas, the pump will be fine.

HKS has had their hands on this engine for quite some time, so I'm not really concerned at it handling 400-450. Even when the Motive head gasket failed, literally nothing else had damage. Aftermarket studs have since been developed.
 

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On E85. You need a lot more E85 to make the same power than you do on pump gas. On pump gas, the pump will be fine.

HKS has had their hands on this engine for quite some time, so I'm not really concerned at it handling 400-450. Even when the Motive head gasket failed, literally nothing else had damage. Aftermarket studs have since been developed.
I wasn’t asking about the energy properties between E85 and pump gas. We understand how it works. My question is, what’s the most Motive has achieved on E85 with a stock fuel pump. I thought it was 380whp but I could be wrong. If you feel it’s safe and reliable running 450whp, go for it. I hope that’s the case but I’ll wait for more examples.
 

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I wasn’t asking about the energy properties between E85 and pump gas. We understand how it works. My question is, what’s the most Motive has achieved on E85 with a stock fuel pump. I thought it was 380whp but I could be wrong. If you feel it’s safe and reliable running 450whp, go for it. I hope that’s the case but I’ll wait for more examples.
I found the video on the E85 with stock fuel pump information. The right details are 260-265kw (350whp) on E85 with a stock fuel pump. They also achieved 321kw (430whp) on E60 with a stock fuel pump. It may not be worth the trouble to covert to E85 for the cooling benefits.

 

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I found the video on the E85 with stock fuel pump information. The right details are 260-265kw (350whp) on E85 with a stock fuel pump. They also achieved 321kw (430whp) on E60 with a stock fuel pump. It may not be worth the trouble to covert to E85 for the cooling benefits.

I agree with that conclusion. Especially if the car sees mostly street use.
 
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