High Revv, Light Weight, What am I missing?/Different type of Conversion Options

[Gunn1]

With all of the talk about light weight, high horsepower replacement engines for our favorite Porsche, have we forgotten all of the lightweight, high revving 4 strokes out there? There are dozens of possible alternatives currently being housed in various motorcycle brands. Are there any working examples of this type conversion out there? Thinking besides the lightweight, they tend to be compact and have smaller cooling, electrical and mechanical systems. Would seem using one for a conversion would be a no brainer. What am I missing?
Thanks

[thelogo]

Its all about usable power

But the engine i would say generally makes the personality of the car

So i think turbo chared straight 4 or a straight 6 would be ideal

But something about ethl glycol and huge radiator s just seems so un porsche to me (IMG:style_emoticons/default/beer3.gif)



My goal would always be like 290 horse and 290 tourque
The so called limit of the transmission

[Mueller]

Its all about usable power

But the engine i would say generally makes the personality of the car

So i think turbo chared straight 4 or a straight 6 would be ideal

But something about ethl glycol and huge radiator s just seems so un porsche to me (IMG:style_emoticons/default/beer3.gif)



My goal would always be like 290 horse and 290 tourque
The so called limit of the transmission

Using the stock transmission would be silly...why bother with a poorly geared transmission? If one could install a different engine then they should have the skills/means to upgrade the transmission to something better.

[Cracker]

The problem is with allot of bike motors, the transmission is integrated into the engine case - they are ONE unit. There is no separating them. The OTHER problem is they make peak torque atvpower and very high rpm's. My engine makes peak power at 12,500 a Busa about 9,500 - my engine has maximum torque of 79 ft lbs. Someone try to pull this off and I'll race them to 130 mph - I'll start out in 4th gear too... (IMG:style_emoticons/default/rolleyes.gif)

T

Its all about usable power

But the engine i would say generally makes the personality of the car

So i think turbo chared straight 4 or a straight 6 would be ideal

But something about ethl glycol and huge radiator s just seems so un porsche to me (IMG:style_emoticons/default/beer3.gif)



My goal would always be like 290 horse and 290 tourque
The so called limit of the transmission

Using the stock transmission would be silly...why bother with a poorly geared transmission? If one could install a different engine then they should have the skills/means to upgrade the transmission to something better.