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#1 | ||
Regular Member
Join Date: Jun 2009
Posts: 129
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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:// ![]() |
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#2 | ||
Drive'n Cruise'n Live'n
Join Date: May 2013
Location: Western Sydney
Posts: 916
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Great Pics,
Are intake and exhaust valve retainers and keepers the same? Cheers |
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#4 | ||
Regular Member
Join Date: Jun 2009
Posts: 129
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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...
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#7 | ||
Regular Member
Join Date: Jun 2009
Posts: 129
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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 04:27 PM. Reason: pic tag not working |
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#8 | ||
Regular Member
Join Date: Jun 2009
Posts: 129
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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! ![]() |
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#9 | ||
Regular Member
Join Date: Jun 2009
Posts: 129
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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?
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#10 | ||
Regular Member
Join Date: Jun 2009
Posts: 129
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#11 | ||
Regular Member
Join Date: Jun 2009
Posts: 129
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Pic is cropped. Bugga!
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#12 | ||
Regular Member
Join Date: Jun 2009
Posts: 129
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Here we go - isn't that the loveliest curve? All gain, no loss
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#13 | ||
Regular Member
Join Date: Jun 2009
Posts: 129
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#14 | ||
Regular Member
Join Date: Jun 2009
Posts: 129
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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 |
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#15 | ||
Former BTIKD
![]() Join Date: Mar 2005
Location: Sunny Downtown Wagga Wagga. NSW.
Posts: 53,197
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__________________
Dying at your job is natures way of saying that you're in the wrong line of work.
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#16 | ||
Regular Member
Join Date: Jan 2005
Location: vic
Posts: 434
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Interesting how both curves flatten off around 4500 rpm.
it also appears to go fairly rich at the same point. |
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#17 | ||
2009 xr turbo,2004 fiesta
Join Date: Oct 2017
Location: Perth wa
Posts: 662
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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. ![]() |
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#19 | |||
Regular Member
Join Date: Jun 2009
Posts: 129
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Quote:
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#20 | |||
Regular Member
Join Date: Jun 2009
Posts: 129
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Quote:
Did the stretched timing chain make any noise at all? |
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#21 | ||
Regular Member
Join Date: Mar 2016
Location: McKinnon
Posts: 37
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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 |
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#23 | ||
2009 xr turbo,2004 fiesta
Join Date: Oct 2017
Location: Perth wa
Posts: 662
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#24 | ||||
5.6L x 2 pilot
![]() ![]() Join Date: Dec 2009
Location: Canbra
Posts: 14,975
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Quote:
Quote:
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
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#25 | |||
5.6L x 2 pilot
![]() ![]() Join Date: Dec 2009
Location: Canbra
Posts: 14,975
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Quote:
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
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