Engine Dowling?
#1
Rotary Freak
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Engine Dowling?
Engine Dowling......what is it, when is it required? I notice most of the high hp cars in Aus have their engines Dowled. When is this required? Is it more needed on a drag car than a road race car? At what hp level is it recommended?
#4
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Originally posted by poor college student
what exactly is it?
what exactly is it?
#5
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There also seems to be an increasing thought that maybe a very rigid type of plate 'ontop' on the sump would be better for reducing flex.
I've also seen this method done a few times..
but as others have said, really not worthwhile until your running crazy ammounts of boost in a high Hp application.
Edited because it was incoherent, possibly because of the bottle of red wine consumed before posting.
I've also seen this method done a few times..
but as others have said, really not worthwhile until your running crazy ammounts of boost in a high Hp application.
Edited because it was incoherent, possibly because of the bottle of red wine consumed before posting.
Last edited by White_FC; 03-22-04 at 06:24 AM.
#7
Originally posted by RotaryRevn
Thanks guys, so it won't be necessary for my plans on a measly 400 hp
Thanks guys, so it won't be necessary for my plans on a measly 400 hp
From what ive heard the 87-88 Blocks have a tendancy to twist once there in the 350 HP range and up. The rear plate always seam to crack this happened to a friends Turbo II pushing 375 RWHP the car ran high 11's. This is why having the motor pinned is recommended, but I still have to say its all about tuning. BDC told me he doesent believe in pinning his motors. But I say everyone has a different opinion on this subject.
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#8
Lives on the Forum
Originally posted by Donn Hecht
but I still have to say its all about tuning.
but I still have to say its all about tuning.
I've seen motors not even breaking 300hp to the wheels crack dowel pins due to detonation.
I believe RICE RACING is making 550 to the wheels with an undoweled motor.
Keep the engine out detonation, and the doweling becomes almost unnecessary.
-Ted
#9
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Originally posted by RETed
Keep the engine out detonation, and the doweling becomes almost unnecessary.
-Ted
Keep the engine out detonation, and the doweling becomes almost unnecessary.
-Ted
Absolutely!
Friend of mine is making 550 to the wheels on his daily driven street ported series 4 block with no doweling.
Granted thats on 116 octane and 23 psi but still moderate timing.
And i've made around 400 rwhp for 2 years on my stock j-spec no problems.
Jason
#10
Rotary Freak
Thread Starter
Great info guys, it's nice to hear it's in the tuning, I plan on getting my motor professionally tuned so hopefully I won't have any problems.
Last edited by RotaryRevn; 03-26-04 at 12:19 AM.
#12
Lives on the Forum
Originally posted by j200pruf
Is dowling used in high HP N/A's power that a very large bridge or P-port would make?
Is dowling used in high HP N/A's power that a very large bridge or P-port would make?
It's mostly for high boosted turbo motors.
-Ted
#13
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i was told by a good builder/tuner around here that running higher boost around 15psi on a decent single turbo would twist the block a bet and you should get your engine dowled. at least two or three..
#15
Originally posted by bcty
i was told by a good builder/tuner around here that running higher boost around 15psi on a decent single turbo would twist the block a bet and you should get your engine dowled. at least two or three..
i was told by a good builder/tuner around here that running higher boost around 15psi on a decent single turbo would twist the block a bet and you should get your engine dowled. at least two or three..
Well like RETed said, as well as Rx_treme, and my self previously stated and agreed upon. Its all about tuning. Then again everyone is entitled to there own opinion. I would say if your not boosting very high like White FC stated then it wouldnt be necessary. But im thinking of doing it as a preventive step more like a precaution, due to the fact that I have someone here locally offering to pin my block, and brush the plates for $275.00 which is not exspensive at all considering they do very good work, and its all done with the proper equipment.
#17
I wish I was driving!
Originally posted by RETed
And who might that be?
-Ted
And who might that be?
-Ted
He's said before that dowelling is necessary above 300 hp... but I completely disagree.
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