Pro Stock 2595cc F20C engine
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Joined: Mar 2008
Posts: 3,221
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From: Austin, TX
What is the basis for the higher RPM limit as I have not found anyone remotely experienced pushing past the factory 9k, especially on a stroked motor.
Can't wait to see the end results. Thank you for sharing this.
Can't wait to see the end results. Thank you for sharing this.
Joined: Nov 2004
Posts: 1,239
Likes: 13
From: Denver
Those pistons are so short!!! I am wondering why you didn't weld up the holes in the exhaust ports for the air injection pump? I would think they would have a significant effect on flow out of that one valve.
Thread Starter
Registered User
Joined: Nov 2004
Posts: 33
Likes: 0
From: VA
These engines will make HP well beyond the 9000rpm stock rev range. The limit so far has me has been camshaft. I have been in the works for over a year trying to get some blanks made and to get them ground to what I am looking for. I finally have done that so that is really the last hurdle in getting an ultra-high revving n/a engine. There are multiple reasons for revving to that rpm not just for hp but in drag racing you have to build your rpm drops based on the rev range. This engine will have a close ratio dog box attached to it designed for the shift points I have desired.
As far as you guys thinking I don't have a clue what I'm doing I have been building Honda motors for close to 8 years now. I have built almost 300 customer engines and our race cars hold records in every class they have competed in. I'm sure alot of you guys might not be familiar with this because you don't follow the drag racing scene. I always get people that tell me I'm wrong and things won't work but I do this hands on 8-14 hours a day 6 days a week.
The K20 and F20 share much of the same dimensions internally and the cam profiles run in this engine are similar to what I am running on the dyno below.
This engine is my 2.4 Liter K20 run on E85. In our street hatchback we ran 10.7@130 at 2050lbs. This is one of my engines from 3 years ago and we still hold the record. No one has been able to beat it.
As far as you guys thinking I don't have a clue what I'm doing I have been building Honda motors for close to 8 years now. I have built almost 300 customer engines and our race cars hold records in every class they have competed in. I'm sure alot of you guys might not be familiar with this because you don't follow the drag racing scene. I always get people that tell me I'm wrong and things won't work but I do this hands on 8-14 hours a day 6 days a week.
The K20 and F20 share much of the same dimensions internally and the cam profiles run in this engine are similar to what I am running on the dyno below.
This engine is my 2.4 Liter K20 run on E85. In our street hatchback we ran 10.7@130 at 2050lbs. This is one of my engines from 3 years ago and we still hold the record. No one has been able to beat it.
