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double over head cam 

 

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 Post subject: double over head cam
Posted: Sun Aug 14, 2005 11:22 pm 
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how would i turn a ef over head can in two a double over head cam? can anyone help!
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Posted: Sun Aug 14, 2005 11:29 pm 
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the only way is to try and track down a crogdahle twin cam head.

but he stoped making them a few years back so you'll find it hard. also any one who has one will mega $$$$$ for it.

 

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 Post subject: double over head cam
Posted: Sun Aug 14, 2005 11:37 pm 
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is there any info on this head that i could read about
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Posted: Sun Aug 14, 2005 11:38 pm 
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i would like some 2

 

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Posted: Mon Aug 15, 2005 12:26 am 
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i think it would be easier to try and fit a ba 6 in it (wich wouldnt be that easy) as its to high for the e series engine bay, modified bonnet will do the trick :P
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Posted: Mon Aug 15, 2005 6:37 pm 
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Rapier wrote:
i think it would be easier to try and fit a ba 6 in it (wich wouldnt be that easy) as its to high for the e series engine bay, modified bonnet will do the trick :P


and it would also look pretty mean. :twisted:

 

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Posted: Mon Aug 15, 2005 6:53 pm 
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The reason there is not many, if any, DOHC I6 heads to be found is that they produced no more power then a stock head could, so other then being different, it would be the biggest waste of money in chassing power.

Put a BA motor in, will be far cheaper easier, and more parts avalaible.

 

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Posted: Mon Aug 15, 2005 6:56 pm 
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Do a google on "krogdahl dohc" for more info or whats left of it, they appear to be not doing business anymore.

 

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Posted: Mon Aug 15, 2005 10:02 pm 
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Dellboy999 wrote:
The reason there is not many, if any, DOHC I6 heads to be found is that they produced no more power then a stock head could, so other then being different, it would be the biggest waste of money in chassing power.

Put a BA motor in, will be far cheaper easier, and more parts avalaible.



you are joking arn't you. they could make alot more power. simply changing only the head and having the EF XR6 cam profile ground onto the twin cams produced 40hp more than the stock head. it also got a full bodied torana with a twin cam 202 to run in the nines on carbs with no nos.

the same head fitted both engines. the head came in 2 forms, large port and small port. you could order any size valve that could fit the chamber.

as for parts that easy too. it used all off the shelf parts. toyota bucket followers, standard size timming belt. all the tensioners and idler pullies were all off the shelf toyota. and the best bit with fitting one is you dont need a $7000 worth of motec to run it. that the b**ch about about the VCT in the BA motor.

 

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Posted: Tue Aug 16, 2005 6:06 pm 
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If you got a BA half cut the ECU is now in the engine bay. Just use that.

 

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Posted: Tue Aug 16, 2005 9:30 pm 
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Spork wrote:
If you got a BA half cut the ECU is now in the engine bay. Just use that.


you can't use it. it needs a signal from al the other other body control modules to work

 

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Posted: Tue Aug 16, 2005 10:09 pm 
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If you were keen had money and time a plenty a BA DOHC engine swap would be the go. The BA head will flow very well and the bottom end is good for 6000rpm. I guess you would just have to run without the vct control and advance up the cam or run custom profile cams to suit non activation of the VCT.

The engine height and sump may still be a problem though.

All up you would be so much better off just getting your head ported and polished and fitted with a oversize exhaust valves. This would improve the flow a hell of a lot for a quarter the price or less
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Posted: Tue Aug 16, 2005 10:26 pm 
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tickford_6 wrote:
Spork wrote:
If you got a BA half cut the ECU is now in the engine bay. Just use that.


you can't use it. it needs a signal from al the other other body control modules to work


they are getting around this by using the modules and the full loom ect,
although its about to become a lot easier , ive been told that the flash tune will soon be able to take the security out of the ecu so you dont need all the extra crap that goes with it. also makes them programable. :lol:

will make the transplant a weekend affair.
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Posted: Tue Aug 16, 2005 11:13 pm 
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xr8 dismantler wrote:
tickford_6 wrote:
Spork wrote:
If you got a BA half cut the ECU is now in the engine bay. Just use that.


you can't use it. it needs a signal from al the other other body control modules to work


they are getting around this by using the modules and the full loom ect,
although its about to become a lot easier , ive been told that the flash tune will soon be able to take the security out of the ecu so you dont need all the extra crap that goes with it. also makes them programable. :lol:

will make the transplant a weekend affair.


sounds like in a few months it would be alot easier to do.

but a weekend affair i think not. i'm yet to see any engine conversion in and running %100. let alone done that fast.

give it two weeks and she'll be going, but running smoothly all the time they never do.

 

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