Stroker question 4.250 crank
Thread Starter
Burning Brakes
Joined: Jul 2003
Posts: 867
Likes: 0
From: Houston TX
Stroker question 4.250 crank
My motor is done.
Its a 4.250 crank
steel block 4.030 bore
In a 98 A4 C5
Will use a set of 6.o heads that flow 310 or better
Questions:
Has anybody done one simular to this ?
What kind of ET and HP and Tourqe did you make ?
Cam Sugestions ?
Thank's for any help
Its a 4.250 crank
steel block 4.030 bore
In a 98 A4 C5
Will use a set of 6.o heads that flow 310 or better
Questions:
Has anybody done one simular to this ?
What kind of ET and HP and Tourqe did you make ?
Cam Sugestions ?
Thank's for any help
Team Owner
Joined: Apr 2001
Posts: 26,794
Likes: 614
From: Elmhurst, IL (West Suburb of Chicago) & Home of MEGA Horsepower
St. Jude Donor '06
Re: Stroker question 4.250 crank (fast 98 C5)
NOt quite but close. I have the same year 98 A4 C5 Roadster as you and opted for a little bit more bore (4.060) and slight less stroke (4.125) for 427 beautiful cubes on a 6 liter ironblock also. See my sig. for dyno numbers which you should be close to if your using the best flowing LS6 heads that $ can buy and aggressive cam like my MTI S1 cam with specs. of 244/244, .612 lift on a 112 lsa.
Who is building your motor? Best of luck! :cheers:
Who is building your motor? Best of luck! :cheers:
Thread Starter
Burning Brakes
Joined: Jul 2003
Posts: 867
Likes: 0
From: Houston TX
Re: Stroker question 4.250 crank (fast 98 C5)
Thank's for the reply. Speed Demon built the motor and my short block is done. Funny I have the same cam in it now that you have. I also have that cam in my current Speed Demon 408. I was just wondering how the extra stroke might effect HP andTQ and really ET. I'm at 11.11's now in Texas Heat and am hoping for a reliable consitant 10sec. daily driver.
Thank's Bill :cool:
Thank's Bill :cool:
Le Mans Master
Joined: Jan 2001
Posts: 6,429
Likes: 1
From: God's Replica
Re: Stroker question 4.250 crank (fast 98 C5)
so you are The One with the 4.25 crank hmmm :D
should be a stump puller. Odd combo, but should be great on the street.
I would go witha solid roller IMO.
Do you think you can update us on how it runs after say 500-1000 miles. I am curious to see if it has any oil consumption issues with that combo.
thanks :cheers:
should be a stump puller. Odd combo, but should be great on the street.
I would go witha solid roller IMO.
Do you think you can update us on how it runs after say 500-1000 miles. I am curious to see if it has any oil consumption issues with that combo.
thanks :cheers:
Thread Starter
Burning Brakes
Joined: Jul 2003
Posts: 867
Likes: 0
From: Houston TX
Re: Stroker question 4.250 crank (intel55)
Thank's for the reply: Yea it's for a daily driver who likes the drag strip.
Do you know anyone with this combo ?
Should I be woried about how long it will last and oil consumption?
I still have to build the ultimate Heads for this beast.
Have to sell old parts to do so.
I'm so happy with my current 408 its hard to spend more money
Thank's Bill
Do you know anyone with this combo ?
Should I be woried about how long it will last and oil consumption?
I still have to build the ultimate Heads for this beast.
Have to sell old parts to do so.
I'm so happy with my current 408 its hard to spend more money
Thank's Bill
