Fordmods Logo

Hybrid DOHC motor (DOHC head on SOHC block) 

 

Page 3 of 3 [ 40 posts ] Go to page Previous  1, 2, 3

 
 Post subject: Re: Hybrid DOHC motor (DOHC head on SOHC block)
Posted: Sat Oct 12, 2013 2:41 am 
Getting Side Ways
Offline

Posts: 496

Joined: 14th Sep 2011

Ride: BF II Gas Ute

Location: Canberra
ACT, Australia

Hi,

An advantage of doing this is the same engine number for rego. I have seen a Toyota push-rod engine with a factory DOHC head. Many motorbikes have an extra spark, ( like firing 2 at once ) and it works fine. At the end of the exhaust stroke, so it wont backfire.

I thought there was a DOHC aftermarket head made for the EA ? Interesting project though, I always like it when someone does " what cant be done " With a 3.1 block ( shorter stroke I thought ? ) It would make good power / revs without a Turbo. Oil may be an issue with continuous high Revs, I remember reading that they changed the Oil pump type for the extra 500 revs of the new engine to maintain proper lubrication

 

_________________

Regards 96ELGli

Top
 Profile  
 
 
 Post subject: Re: Hybrid DOHC motor (DOHC head on SOHC block)
Posted: Sat Oct 12, 2013 7:47 pm 
Getting Side Ways
Offline
User avatar

Age: 39

Posts: 2832

Joined: 7th Nov 2004

Gallery: 4 images

Ride: Lincoln LS, MKII Escort, ED

Location: geelong
VIC, Australia

turned out cutting and shutting the DOHC sump to suit e-series wasn't as impossible as was widely believed. so this project didn't need to be completed - with a lot of machining work it would have been possible but not worth the effort (when the sump mod was possible).

Had it turned out the sump couldnt be modified for clearance i would have continued down this path.

 

_________________

Because i can.

Top
 Profile  
 
 
 Post subject: Re: Hybrid DOHC motor (DOHC head on SOHC block)
Posted: Thu Apr 24, 2014 10:29 pm 
Stock as a Rock
Offline
User avatar

Age: 40

Posts: 184

Joined: 27th Nov 2004

Ride: Cortina TE

Location: Perth
WA, Australia

I think you have given up too easily trying to put a DOHC head on a SOHC

Because the Holden Boys use Ford SOHC heads on their 186 blocks now.
they used to use 250xflows but OHC is more power.


Image

this is the 250xflow setup
Image

 

_________________

Image

Top
 Profile  
 
 
 Post subject: Re: Hybrid DOHC motor (DOHC head on SOHC block)
Posted: Thu Apr 24, 2014 10:49 pm 
Getting Side Ways
Offline
User avatar

Age: 39

Posts: 2832

Joined: 7th Nov 2004

Gallery: 4 images

Ride: Lincoln LS, MKII Escort, ED

Location: geelong
VIC, Australia

holy s**t, i had heard of the 250xflow trick before (but didnt 100% believe it). it would be a ridiculous amount of work to do either of those conversions. i bet NONE of the head studs or oil/water galleries realy line up on one of those

 

_________________

Because i can.

Top
 Profile  
 
 
 Post subject: Re: Hybrid DOHC motor (DOHC head on SOHC block)
Posted: Fri Apr 25, 2014 7:57 pm 
Getting Side Ways
Offline
User avatar

Age: 56

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

P100 Ute wrote:
I think you have given up too easily trying to put a DOHC head on a SOHC

Because the Holden Boys use Ford SOHC heads on their 186 blocks now.
they used to use 250xflows but OHC is more power.


Image

this is the 250xflow setup
Image


I noticed the head is on backwards for the Xflow head......cams are opposite sides, Xflow and Holden red 6.

 

_________________

http://youtu.be/jJTh9F3Vgg0

Top
 Profile  
 
 
 Post subject: Re: Hybrid DOHC motor (DOHC head on SOHC block)
Posted: Sat Apr 26, 2014 8:05 am 
Getting Side Ways
Offline
User avatar

Age: 58

Posts: 434

Joined: 18th Jul 2009

Ride: NL FAIRLANE BA TURBO POWERED

Location: ballarat
VIC, Australia

Exposed cam drive looks like a bit of work is required to get these to fit.
Top
 Profile  
 
 
 Post subject: Re: Hybrid DOHC motor (DOHC head on SOHC block)
Posted: Sat Apr 26, 2014 9:19 am 
Getting Side Ways
Offline
User avatar

Age: 56

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

fezlane wrote:
Exposed cam drive looks like a bit of work is required to get these to fit.


Yeah.....not something you can just whack together at home, eh?

 

_________________

http://youtu.be/jJTh9F3Vgg0

Top
 Profile  
 
 
 Post subject: Re: Hybrid DOHC motor (DOHC head on SOHC block)
Posted: Sat Apr 26, 2014 6:44 pm 
Getting Side Ways
Offline
User avatar

Age: 39

Posts: 2832

Joined: 7th Nov 2004

Gallery: 4 images

Ride: Lincoln LS, MKII Escort, ED

Location: geelong
VIC, Australia

cjh wrote:
fezlane wrote:
Exposed cam drive looks like a bit of work is required to get these to fit.


Yeah.....not something you can just whack together at home, eh?


Definitely not, i would expect that even a lot of "professional" engine re builders wouldn't want to build one of these (or what i was working on with the falcon motors) it reeks of "old school engineer" to me. if fezlane hadnt managed to modify his DOHC sump to fit i would have pushed on with the project and started getting machining done.

 

_________________

Because i can.

Top
 Profile  
 
 
 Post subject: Re: Hybrid DOHC motor (DOHC head on SOHC block)
Posted: Sun Apr 27, 2014 12:37 am 
Fordmods Junkie
Offline
User avatar

Age: 45

Posts: 1000493

Joined: 6th Nov 2004

Gallery: 2 images

Ride: AUXR6 HP With Ducati SupA Bike!

Location: Perth
WA, Australia

96ELGli wrote:
Hi,
I thought there was a DOHC aftermarket head made for the EA ?



krogdhol heads ?

they actually fit both the ford and holden motors too
had DOHC as well as twin spark

 

_________________

RIP SCOTT

Top
 Profile  
 
 
 Post subject: Re: Hybrid DOHC motor (DOHC head on SOHC block)
Posted: Sun Apr 27, 2014 9:37 pm 
Getting Side Ways
Offline
User avatar

Posts: 1412

Joined: 21st May 2005

Location: Melbourne
VIC, Australia

Pity they were so expensive. Could have been a lot of them running around by now.

 

_________________

EL Fairmont Ghia - Manual - Supercharged
- The Car
- The Headlights

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 3 of 3  [ 40 posts ]  Go to page Previous  1, 2, 3

Who is online

Users browsing this forum: Google [Bot], Google Adsense [Bot] and 42 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Sat Nov 23, 2024 11:46 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names