Jdm dc2r, boring out throttle body

[Kiz_EG6]

interesting, so a stock engine will make more power with just a larger throttle body? I wonder why honda sold cars with lower power than was possible? Why dont hondas all come with 65mm throttle bodies? Can you explain why you seem to believe that the honda throttle body is a source of restriction? (and for bonus points, maybe you could discuss port matching the throttle body to the intake manifold once it has been bored out. You know, which might also help the guy with his original question?)

...so if what you are saying is correct, then tell me why honda did not bring all their cars out with factory 4:1 extractors, as these make more power also, it's all about the cost and economy isn't it genious!?!

I would class a throttle body as a bolt on mod and there are plenty of bolt on's which honda could have released their cars with factory standard, which make more power, why don't they release them with a leaner fuel map too?

[tinkerbell]

...so if what you are saying is correct, then tell me why honda did not bring all their cars out with factory 4:1 extractors, as these make more power also, it's all about the cost and economy isn't it genious!?!

I would class a throttle body as a bolt on mod and there are plenty of bolt on's which honda could have released their cars with factory standard, which make more power, why don't they release them with a leaner fuel map too?

yes, like the first B16A went from 58mm to 60mm in the 2nd gen, and the Type R's got the 62mm ones...

the ORIGINAL POSTER has a JDM Type R with 62mm

so WHY is he going to GAIN power from boring it out further if he has stock engine?


FYI - i have a B20VTEC, and got my TB bored out to 63mm, and gained power, so i ALSO prove that on a MODIFIED engine it helps...

yellow-dc2 said it would provide power gains on a STOCK engine...


that is all.

[yellow-dc2]

yellow-dc2 said it would provide power gains on a STOCK engine...

And it will, for the same reason people put XF Falcon Throttle body's on stock SR20's and 4AGE motors, you don't need internal work for gains, the minimum he will need is a cat back exhaust to see considerable improvements.

Honda don't make engines to be the most powerful they can be, if they did this you would N/A 1.8 ltr motors revving to 12K and costing $200 on fuel, they make a balanced car not a super car!