Fordmods Logo

building a turbo Xflow engine 

 

Page 1 of 2 [ 22 posts ] Go to page 1, 2  Next

 
 Post subject: building a turbo Xflow engine
Posted: Thu Sep 06, 2007 9:30 am 
Parts Gopher
Offline
User avatar

Posts: 53

Joined: 4th Mar 2007

Location: Melbourne
VIC, Australia

Hi fellas, I'm in need of a bit of advice on building a 6 cylinder engine up for a little cortina I plan to use as a fun drag car.

I've got an old 250 from a XF sitting here that needs a rebuild and I'd like some input as to what is the best way to go about it. I'm not after a 10 sec flyer, just a strong bottom end, N/A for starters, then a change to straight LPG and a small turbo later on. This all needs to be done on a budget and I don't mind if it takes a bit of time. A couple of mechanically minded mates are along for the ride and I'd rather try things out of the ordinary instead of following along a tried path

I've read that a E-series crank will fit into a 250 block, apart from weight saving is there any other advantage to this?
What head work needs to be done?
Is it a better option to ditch the 250 xflow and drop a EF/EL I6 into it?

Any help and ideas on this is much appreciated.
Thanks guys
Cuz

 

_________________

Who cares how it looks, power is everything, looks are for metrosexuals.....

Don't vote...it only encourages them.

Last edited by cuz351 on Thu Sep 06, 2007 10:42 pm, edited 2 times in total.

Top
 Profile  
 
 
Posted: Thu Sep 06, 2007 4:09 pm 
Getting Side Ways
Offline
User avatar

Posts: 3115

Joined: 20th Dec 2004

Ride: Falcon

Location: Adelaide
SA, Australia

There are a couple of e-series cranks to choose from but they are all at least as heavy as the x-series and some are up to 4kg heavier (EF). They are however better balanced.

You cant really just build a hi-performance NA engine and then turbo it later. Pick one and build it. For a NA engine you want to build everything light and smooth with high compression and high rpm in mind. For boost you want beefy and strong with low compression and boost in mind. If you want to build either properly it will be the opposite approach to building the other.

If you are building a NA engine, start with 200ci rods and the ACL pistons to suit. The extra rod length and compression will raise the redline and give you more power with the big cam you will be running. Pick a cam that will suit the rev range and power levels you are after (as well as what fuel and ignition - efi or carby). The XF heads have smallish ports so I am sure they will benefit from porting but I dont have much experience with those heads so wont offer any advice. Top the engine off with roller rockers to keep the valve train pumping along nicely at the higher rpm.

If you look around the forums you will see some VERY good examples of 250 power corty's

 

_________________

Stoke me a clipper, I'll be back for Christmas

Top
 Profile  
 
 
Posted: Thu Sep 06, 2007 5:16 pm 
Getting Side Ways
Offline

Age: 35

Posts: 1353

Joined: 15th Mar 2007

Gallery: 7 images

Ride: AU XR6

Power: 171 rwkw

Location: thornton
NSW, Australia

THE XF MOTOR WILL PROBLY BE CHEAPER AND EASYER BUT PROBLY WONT MAKE THE POWER OF THE INJECTED MOTOR IF YOU WANT TURBO MAYBE LOOK AT A EFI 4.1 THERE IS SOME SIMPLE BUT EFFECTIVE SETUPS OUT THERE AN THE INTAKE IS JUST BUILT FOR IT

 

_________________

9/98 AU1 XR6hp-about to retire from the road and be reborn on the race track.
86 ZL mint grandpa spec with premo sound and 150000km
07 TTG 60000km stock as, mods to come.
97 el futura about to be MOCKed

Top
 Profile  
 
 
Posted: Thu Sep 06, 2007 5:20 pm 
Getting Side Ways
Offline
User avatar

Age: 85

Posts: 1088

Joined: 30th Jan 2005

Gallery: 16 images

Ride: F350

Location: Brisbane
QLD, Australia

Just buy a clevo and be done with it.
Stock it will run harder than aworked I6, and will be a shed load cheaper too.
Top
 Profile  
 
 
Posted: Thu Sep 06, 2007 5:29 pm 
Getting Side Ways
Offline

Age: 35

Posts: 1353

Joined: 15th Mar 2007

Gallery: 7 images

Ride: AU XR6

Power: 171 rwkw

Location: thornton
NSW, Australia

might be cheaper but not as much fun as when you pull up next to a v8 with the pipes dumping at the diff and you leave it in a cloud of tyre smoke

 

_________________

9/98 AU1 XR6hp-about to retire from the road and be reborn on the race track.
86 ZL mint grandpa spec with premo sound and 150000km
07 TTG 60000km stock as, mods to come.
97 el futura about to be MOCKed

Top
 Profile  
 
 
Posted: Thu Sep 06, 2007 5:43 pm 
Getting Side Ways
Offline
User avatar

Age: 85

Posts: 1088

Joined: 30th Jan 2005

Gallery: 16 images

Ride: F350

Location: Brisbane
QLD, Australia

ebxr82nv wrote:
might be cheaper but not as much fun as when you pull up next to a v8 with the pipes dumping at the diff and you leave it in a cloud of tyre smoke


I wouldnt know......lol
Top
 Profile  
 
 
 Post subject: Re: Help me build a drag strip engine
Posted: Thu Sep 06, 2007 7:50 pm 
Getting Side Ways
Offline
User avatar

Age: 49

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

cuz351 wrote:
Hi fellas, I'm in need of a bit of advice on building a 6 cylinder engine up for a little cortina I plan to use as a fun drag car.

I've got an old 250 from a XF sitting here that needs a rebuild and I'd like some input as to what is the best way to go about it. I'm not after a 10 sec flyer, just a strong bottom end, N/A for starters, then a change to straight LPG and a small turbo later on. This all needs to be done on a budget and I don't mind if it takes a bit of time. A couple of mechanically minded mates are along for the ride and I'd rather try things out of the ordinary instead of following along a tried path

I've read that a E-series crank will fit into a 250 block, apart from weight saving is there any other advantage to this?
What head work needs to be done?
Is it a better option to ditch the 250 xflow and drop a EF/EL I6 into it?

Any help and ideas on this is much appreciated.
Thanks guys
Cuz



Here's one X-flow that hauled ar5e. Ran on premium ULP, ran 10:1 comp, crow cam, double valve springs, adjustable competition timing chain set, modified 600 vac sec Holley, ported head, port matched 4 barrel inlet, port matched Genie comp extractors, modified dizzy with MSD 6AL ignition, adjustable roller rockers, and is a 4 sp man.
It had 265/70R15's on it and would smoke them in 3rd with a 2.92 LSD and no brakes used. It would rev to 6000 rpm.
Unfortunately, an antipump-up lifter decided it had had enough, but wasn't being flogged at the time.
So now the bits are for sale.

 

 

Attachments:
Nathans XF Ute with big tyres on 265-70R15 001.jpg
Nathans XF Ute with big tyres on 265-70R15 001.jpg [ 336.38 KiB | Viewed 31 times ]
Nathans XF Ute 250 Xflow..jpg
Nathans XF Ute 250 Xflow..jpg [ 420.41 KiB | Viewed 62 times ]
Nathans XF Ute 250 Xflow. 001.jpg
Nathans XF Ute 250 Xflow. 001.jpg [ 593.96 KiB | Viewed 88 times ]
Nathans XF Ute 250 Xflow. 005.jpg
Nathans XF Ute 250 Xflow. 005.jpg [ 448.94 KiB | Viewed 90 times ]

 

_________________

http://youtu.be/jJTh9F3Vgg0

Top
 Profile  
 
 
Posted: Thu Sep 06, 2007 9:32 pm 
Parts Gopher
Offline
User avatar

Posts: 53

Joined: 4th Mar 2007

Location: Melbourne
VIC, Australia

Thanks for the replies fellas. My decision on wether or not to turbo it has been made. I just got back from picking these bits up:

Image

Image

Image

Turbo is a HT18S-2S
Intercooler is from a BA turbo with less than 30,000kms on it
3" dump pipe
Homemade log style manifold

Well now it looks like I need to build a crossflow capable of handling boosted strip duties and find a suitable TC cortina to put it all in.

 

_________________

Who cares how it looks, power is everything, looks are for metrosexuals.....

Don't vote...it only encourages them.

Top
 Profile  
 
 
Posted: Thu Sep 06, 2007 10:01 pm 
Getting Side Ways
Offline
User avatar

Posts: 1863

Joined: 30th Apr 2006

Location: Melbourne
VIC, Australia

Good stuff mate, shuold make for a real surprise!
Top
 Profile  
 
 
Posted: Thu Sep 06, 2007 10:05 pm 
Getting Side Ways
Offline
User avatar

Age: 32

Posts: 3687

Joined: 4th Mar 2005

Gallery: 23 images

Ride: XR6 Turbo

Location: Taree
NSW, Australia

What times did that ute do? any power read outs?

 

_________________

SS Inductions CAI, K&N Filters, M-spec FMC, Turbosmart BOV, 8psi capa tune, X-force cat.

Mods going on: Nizpro springs, bosch 040 pump + Walbro gss341, 600cc injectors, PWR transcooler, 20% Underdrives, 15psi Actuator, Kingspring SSL's, 15psi tune.....More coming

Top
 Profile  
 
 
Posted: Thu Sep 06, 2007 11:07 pm 
Getting Side Ways
Offline
User avatar

Age: 49

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

Molloy wrote:
What times did that ute do? any power read outs?



It was punching out 170+ HP at the wheels ( the big wheels and the 2.92 diff gears ). It needed more tweeking, but alas it didn't get there, so now a 351C is going in it now. Not sure on how far he wants to go with that.

 

_________________

http://youtu.be/jJTh9F3Vgg0

Top
 Profile  
 
 
Posted: Fri Sep 07, 2007 11:34 pm 
Parts Gopher
Offline
User avatar

Posts: 53

Joined: 4th Mar 2007

Location: Melbourne
VIC, Australia

Nice. Anyone have a rundown on a build list for me? I read that 200 rods in a 250 make it very strong

 

_________________

Who cares how it looks, power is everything, looks are for metrosexuals.....

Don't vote...it only encourages them.

Top
 Profile  
 
 
Posted: Fri Sep 07, 2007 11:41 pm 
Getting Side Ways
Offline
User avatar

Age: 49

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

cuz351 wrote:
Nice. Anyone have a rundown on a build list for me? I read that 200 rods in a 250 make it very strong


If you run 200 rods in a 250, you need to use the special pistons for that setup. It changes the stroke to rod-length ratio. It the same when using 302C rods in a 351C. ACL make those pistons for it.

 

_________________

http://youtu.be/jJTh9F3Vgg0

Top
 Profile  
 
 
Posted: Fri Sep 07, 2007 11:43 pm 
Parts Gopher
Offline
User avatar

Posts: 53

Joined: 4th Mar 2007

Location: Melbourne
VIC, Australia

Righto.

What kind of work do I get done to the head?

 

_________________

Who cares how it looks, power is everything, looks are for metrosexuals.....

Don't vote...it only encourages them.

Top
 Profile  
 
 
Posted: Fri Sep 07, 2007 11:55 pm 
Getting Side Ways
Offline
User avatar

Age: 49

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

The usual 3 angle valve cut, with back cut inlets, tidy up the ports, and port-match them. Use a high volume oil-pump using a 15W engine oil with an engine oil cooler.

 

_________________

http://youtu.be/jJTh9F3Vgg0

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 2  [ 22 posts ]  Go to page 1, 2  Next

Who is online

Users browsing this forum: FordFan86 and 20 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 Tue Dec 19, 2017 9:41 am All times are UTC + 11 hours

 

 

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