Welcome to the Australian Ford Forums forum.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated.

Go Back   Australian Ford Forums > Club and Speciality Forums > Forum Community Car Clubs > AU Falcon.com.au

Reply
 
Thread Tools Display Modes
Old 06-03-2021, 06:56 PM   #1
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Tickford-Yella Terra Heads

I though this may be on interest...

I managed to pick up a couple of heads from a Tickford TE50. Apparently they’re the same as the 220kW heads, ie larger valves, ported by Perfectune/Yella Terra.
Today I put them on the bench and lined them up with a standard intake manifold. It’s an interesting comparison.

I’ll now use bearing blue to show where to mod the intake manifold and then break out the old CC Specialty porting gear from my bike racing days!

Manifold ports vs head ports -

http://

http://

Milling to reduce shrouding around larger inlet valve -

http://

The Yella Terra milling/porting is easy to see when compared to the normal combustion chamber casting -

http://
pete r is offline   Reply With Quote Multi-Quote with this Post
3 users like this post:
Old 07-03-2021, 07:50 PM   #2
XC50077
Drive'n Cruise'n Live'n
 
XC50077's Avatar
 
Join Date: May 2013
Location: Western Sydney
Posts: 916
Default Re: Tickford-Yella Terra Heads

Great Pics,
Are intake and exhaust valve retainers and keepers the same?
Cheers
XC50077 is offline   Reply With Quote Multi-Quote with this Post
Old 04-05-2021, 03:00 PM   #3
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

Looks that way...
pete r is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 04-05-2021, 03:13 PM   #4
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

TE50 heads fitted with YT roller rockers and ported lower intake. The rockers are adjustable and 1.7:1 ratio. The only issue is the standard rocker covers won't fit...

pete r is offline   Reply With Quote Multi-Quote with this Post
Old 04-05-2021, 03:18 PM   #5
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

A quick trip over to Campbelltown and Sydney Speed Supplies for some spiffy tall valve covers -

pete r is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 04-05-2021, 03:19 PM   #6
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

The upper intake looked daggy as **** so a touch of Brand New was added -


Last edited by pete r; 04-05-2021 at 03:26 PM.
pete r is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 04-05-2021, 03:24 PM   #7
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

A 1" intake spacer was required because of the added height of the new rocker covers. And here she is in all her glory!


Last edited by pete r; 04-05-2021 at 03:27 PM. Reason: pic tag not working
pete r is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 04-05-2021, 03:35 PM   #8
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

It's a totally different beast now. Snappy as fook. Exhaust note is totally different, engine seems to have lost a little bit of bottom end but wants to spin like a top.
Must be because of the increase in rocker ratio increasing lift, valve opening and closing speeds and 50thou duration. Bigger valves, increased compression and ported lower intake obviously contributing too.

Off to the dyno next week for a before and after comparison. Then once I figure out Quarterhorse and get it tuned properly then a final dyno reading. The poor old ECU doesn't know WTF has happened!

pete r is offline   Reply With Quote Multi-Quote with this Post
3 users like this post:
Old 13-05-2021, 10:48 AM   #9
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

Before and after dyno results. I couldn’t ask for a better result, no loss of bottom end power, AFR ratio still good and open for tweaking at the top end. And it’s all Ford bits. 250rwhp must be 300+fwhp?

pete r is offline   Reply With Quote Multi-Quote with this Post
Old 13-05-2021, 10:53 AM   #10
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

pete r is offline   Reply With Quote Multi-Quote with this Post
Old 13-05-2021, 10:55 AM   #11
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

Pic is cropped. Bugga!
pete r is offline   Reply With Quote Multi-Quote with this Post
Old 13-05-2021, 02:35 PM   #12
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

Here we go - isn't that the loveliest curve? All gain, no loss

pete r is offline   Reply With Quote Multi-Quote with this Post
Old 13-05-2021, 03:43 PM   #13
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

pete r is offline   Reply With Quote Multi-Quote with this Post
Old 13-05-2021, 04:14 PM   #14
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

Couldn't get the youtube thingy to work so here's the raw link to the car on the dyno if you want a listen -

https://youtu.be/mAj0swgqVLQ
pete r is offline   Reply With Quote Multi-Quote with this Post
Old 13-05-2021, 04:35 PM   #15
GasoLane
Former BTIKD
Donating Member2
 
GasoLane's Avatar
 
Join Date: Mar 2005
Location: Sunny Downtown Wagga Wagga. NSW.
Posts: 53,197
Default Re: Tickford-Yella Terra Heads

Here ya go.....


Quote:
Originally Posted by pete r View Post
__________________
Dying at your job is natures way of saying that you're in the wrong line of work.
GasoLane is offline   Reply With Quote Multi-Quote with this Post
Old 13-05-2021, 04:36 PM   #16
speedzter
Regular Member
 
Join Date: Jan 2005
Location: vic
Posts: 434
Default Re: Tickford-Yella Terra Heads

Interesting how both curves flatten off around 4500 rpm.
it also appears to go fairly rich at the same point.
speedzter is offline   Reply With Quote Multi-Quote with this Post
Old 13-05-2021, 06:39 PM   #17
TICKFORD220
2009 xr turbo,2004 fiesta
 
Join Date: Oct 2017
Location: Perth wa
Posts: 662
Default Re: Tickford-Yella Terra Heads

Almost identical power to my old 220kw s3 manual,mine had stock 220 headers,twin manta system,ported lower intake,msd coil packs, advanced cam timing by 2 degrees,made 255 rwhp.
My timing chain was stretched and fkd after 100000km so i replaced with a rollmaster and advanced timing to make it a bit snappier down low.
Mine got tuned by chad at streetbuilt.
Good result there cobber.
TICKFORD220 is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 14-05-2021, 12:16 AM   #18
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

Quote:
Originally Posted by GasoLane View Post
Here ya go.....
You champ thanks Gaso
pete r is offline   Reply With Quote Multi-Quote with this Post
2 users like this post:
Old 14-05-2021, 12:22 AM   #19
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

Quote:
Originally Posted by speedzter View Post
Interesting how both curves flatten off around 4500 rpm.
it also appears to go fairly rich at the same point.
Yeah interesting aye. I’ve got the quarterhorse talking to the ECU and the laptop, and have some O2 sensor bungs ready to weld onto the exhaust. When it’s all connected I’ll see what the wideband says it’s doing and maybe try leaning things out a wee bit, see if the AFR can be a bit more linear. There might be a few more ponies hiding in there...
pete r is offline   Reply With Quote Multi-Quote with this Post
2 users like this post:
Old 14-05-2021, 12:25 AM   #20
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

Quote:
Originally Posted by TICKFORD220 View Post
Almost identical power to my old 220kw s3 manual,mine had stock 220 headers,twin manta system,ported lower intake,msd coil packs, advanced cam timing by 2 degrees,made 255 rwhp.
My timing chain was stretched and fkd after 100000km so i replaced with a rollmaster and advanced timing to make it a bit snappier down low.
Mine got tuned by chad at streetbuilt.
Good result there cobber.
Cheers digger!
Did the stretched timing chain make any noise at all?
pete r is offline   Reply With Quote Multi-Quote with this Post
Old 14-05-2021, 05:38 PM   #21
LoBelly
Regular Member
 
Join Date: Mar 2016
Location: McKinnon
Posts: 37
Default Re: Tickford-Yella Terra Heads

Thanks for this update - have recently acquired a '99 XR8 myself and am contemplating my options (also have some of the Tickford 220kw/GT40P heads on my shelf)

Having read Stu's posts on the quarterhorse I'm keen to give that a go

sound like you're very satisfied - would be keen to hear how you go with the tuning etc
LoBelly is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 15-05-2021, 03:42 PM   #22
pete r
Regular Member
 
Join Date: Jun 2009
Posts: 129
Default Re: Tickford-Yella Terra Heads

No worries mate, I’m starting from scratch and will keep you updated!
pete r is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 15-05-2021, 04:03 PM   #23
TICKFORD220
2009 xr turbo,2004 fiesta
 
Join Date: Oct 2017
Location: Perth wa
Posts: 662
Default Re: Tickford-Yella Terra Heads

Quote:
Originally Posted by pete r View Post
Cheers digger!
Did the stretched timing chain make any noise at all?
Not at all,i planned to advance the timing so i got a new timing set,once it came apart i found the the factory chain was rooted.
TICKFORD220 is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 17-05-2021, 05:56 PM   #24
auIILTD
5.6L x 2 pilot
Donating Member2
 
auIILTD's Avatar
 
Join Date: Dec 2009
Location: Canbra
Posts: 15,037
Valued Contributor: For members whose non technical contributions are worthy of recognition. - Issue reason: For the effort put into the Australia day cruise to Albury Tech Writer: Recognition for the technical writers of AFF - Issue reason: AU Tech article. 
Default Re: Tickford-Yella Terra Heads

Quote:
Originally Posted by speedzter
Interesting how both curves flatten off around 4500 rpm.
it also appears to go fairly rich at the same point.
Very typical of a factory tune. I was seeing my AFRs on my stock P250 dip down into the 10s.

Quote:
Originally Posted by pete r
Yeah interesting aye. I’ve got the quarterhorse talking to the ECU and the laptop, and have some O2 sensor bungs ready to weld onto the exhaust. When it’s all connected I’ll see what the wideband says it’s doing and maybe try leaning things out a wee bit, see if the AFR can be a bit more linear. There might be a few more ponies hiding in there...
Good work Pete. Very interested in following your progress.

I have started a EECV/QH tuning thread. It may help you. Have a read, and if you have any tuning questions, post them there and I will happily assist if I can.
https://fordforums.com.au/showthread.php?t=11478284

Good luck.
Stu
__________________
2002 AU II LTD

5.6L 342ci T3 Short, AFR165 heads, Comp XE270HR-12 Cam, Brembo 4/4s(355/330), T3 5 spokes, LC-1 wideband, Whiteline HD swaybars, TCE 3K Hi Stall, PWR Auto Trans Cooler, Koni shocks, King Low Springs, Hurricane headers, 100 cpsi cats, Twin 2.5" exhaust.

Quarter Mile: 13.73 @ 105.86mph


Runner Up NA/DA to BF Fairlane/LTD Geelong AFD 2024

2002 XR8 pursuit 250

Custom twin 2.5" exhaust w Herrod modifed extractors, Tuned with Moates QH
auIILTD is offline   Reply With Quote Multi-Quote with this Post
2 users like this post:
Old 17-05-2021, 06:38 PM   #25
auIILTD
5.6L x 2 pilot
Donating Member2
 
auIILTD's Avatar
 
Join Date: Dec 2009
Location: Canbra
Posts: 15,037
Valued Contributor: For members whose non technical contributions are worthy of recognition. - Issue reason: For the effort put into the Australia day cruise to Albury Tech Writer: Recognition for the technical writers of AFF - Issue reason: AU Tech article. 
Default Re: Tickford-Yella Terra Heads

Quote:
Originally Posted by auIILTD View Post
Very typical of a factory tune. I was seeing my AFRs on my stock P250 dip down into the 10s.
Quoting myself, apologies.

Here is a graph I logged of the factory tune in my P250. Factory tune commands stupid rich high in the rev range. Graph uses lambda not AFR on the right scale. Lambda X 14.64 = AFR. Follow the black line.



Same graph with fuelling corrected (2nd gear pull) - again follow the black line.


Cheers
Stu
__________________
2002 AU II LTD

5.6L 342ci T3 Short, AFR165 heads, Comp XE270HR-12 Cam, Brembo 4/4s(355/330), T3 5 spokes, LC-1 wideband, Whiteline HD swaybars, TCE 3K Hi Stall, PWR Auto Trans Cooler, Koni shocks, King Low Springs, Hurricane headers, 100 cpsi cats, Twin 2.5" exhaust.

Quarter Mile: 13.73 @ 105.86mph


Runner Up NA/DA to BF Fairlane/LTD Geelong AFD 2024

2002 XR8 pursuit 250

Custom twin 2.5" exhaust w Herrod modifed extractors, Tuned with Moates QH
auIILTD is offline   Reply With Quote Multi-Quote with this Post
2 users like this post:
Reply

Thread Tools
Display Modes

Forum Jump


All times are GMT +11. The time now is 08:05 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Other than what is legally copyrighted by the respective owners, this site is copyright www.fordforums.com.au
Positive SSL