Thanks a lot and... what happen with your duratec im?
Top Speed's 300hp NA Duratec Build
4
We have decided to ditch the turbo zetec engine in our sedan race car and go with a naturally aspirated duratec. We should have the car running by the end of the summer.
We are currently flow testing 2.0, 2.3 and 2.5 heads to decide on the best combinations. Physically the 2.5 intake ports are much larger than the 2.0
The final setup hasn't been decided as we are waiting on flow numbers from the different heads.
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To see pictures of the rest of the car check out this thread
http://forums.focaljet.com/forced-i...eds-turbo-zetec-zx4-racecar-build-thread.html
We are currently flow testing 2.0, 2.3 and 2.5 heads to decide on the best combinations. Physically the 2.5 intake ports are much larger than the 2.0
The final setup hasn't been decided as we are waiting on flow numbers from the different heads.
To see pictures of the rest of the car check out this thread
http://forums.focaljet.com/forced-i...eds-turbo-zetec-zx4-racecar-build-thread.html
81 - 100 of 131 Posts
We should have the final ones out soonThanks a lot and... what happen with your duratec im?
Do the oil pump, pan, pickup have to be from a 2.0 or will a 2.3 work as well?
Thanks for the great info. Is the oil port that needs plugging feeding the VCT?
It has to be a focus oil pan and the pan has to match the oil pump and pickup. So it as to be all focus 2.0 stuff or all focus 2.3 stuff you can't mix n match.Do the oil pump, pan, pickup have to be from a 2.0 or will a 2.3 work as well?
YesThanks for the great info. Is the oil port that needs plugging feeding the VCT?
Nice. Any chance you can change the x-axis value to RPM instead of wheel speed? Thanks.
No, I wish I could, but the rpm signal on the dyno did not get a good reading.
Do you recall approximately the max and min RPM?
The rev limiter was at 9k
Well HELLO!!! That's pretty stout. Thanks.The rev limiter was at 9k
Is that 2.5 crank forged?
Its not a 2.5 crank. We are using a balanced 2.3 ranger crankIs that 2.5 crank forged?
is the stroke the same in the 2.3 and 2.5?
did you key the balancer pulley?
did you mod the timing chain tensioner for high rpm use?
did you key the balancer pulley?
did you mod the timing chain tensioner for high rpm use?
No, the 2.5 is a longer stroke.is the stroke the same in the 2.3 and 2.5?
is the stroke the same in the 2.3 and 2.5?
did you key the balancer pulley?
did you mod the timing chain tensioner for high rpm use?
2.5 stroke is 100mm
2.3 stroke is 94mm
We didn't key the crank but we should have.
I thought 2.5 crank & 2.3 crank where different? I know rods are. But to get it to stroke from 2.3 to 2.5 I was thinking crank & rods.
The main journals are the same and the rod journals are different. you can put a 2.3 crank in a 2.5 block or a 2.5 crank in a 2.3 block with the right piston rod combo.I thought 2.5 crank & 2.3 crank where different? I know rods are. But to get it to stroke from 2.3 to 2.5 I was thinking crank & rods.
Can you elaborate on this?The main journals are the same and the rod journals are different. you can put a 2.3 crank in a 2.5 block or a 2.5 crank in a 2.3 block with the right piston rod combo.
Also, you didn't answer my question on the timing chain tensioner.
81 - 100 of 131 Posts
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