North American Turbocoupe Organization



Rapido XR4Ti 2.3L Turbo Aluminum Cylinder Head
David85TC Offline
Member
#1
check out the aluminum head and the piston kit almost at the bottom on the page.

Rapido XR4Ti 2.3L Turbo Aluminum Cyclinder Head

INTRODUCTORY OFFER (FOR A LIMITED TIME ONLY) --- ONLY $1149!!!

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http://images.google.com/imgres?imgurl=http://www.rapidogroup.com/xr4_cyclinder_head_021504.jpg&imgrefurl=http://www.rapidogroup.com/newprod.htm&usg=__y4D7uCz6M1fa52AUVCzhlBc6K3I=& h=289&w=511&sz=15&hl=en&start=98&um=1&itbs=1&tbnid=rRaM_BYBBEcyrM:&tbnh=74&tbnw=131&prev=/images%3Fq%3Dford%2B2.3%2Bturbo%2Bengine%26start%3D84%26um%3D1%26hl%3Den%26sa%3DN%26rlz%3D 1R2SHCN_enIS354%26ndsp%3D21%26tbs%3Disch:1
1985 Turbo coupe 71,000 miles Medium Red Metallic with Gray cloth interior, all option except leather and passenger power seat. All stock. But unfortunatly she has bad rust.

1988 Turbo coupe 88,000 miles Sandalwood with base leather seats, all option except moonroof and passenger power seat. Bone stock.

1985 30th Anniversary T-bird.
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tr_guy79 Offline
Senior Member
#2
Hmmm... Interesting... I wonder what BoPort can massage out of it...


-Shane
3rd Annual Philly Tri-State NATO Meet - http://natomessageboard.com/ultimatebb.p...p=1#000003

'87 - Range Roller 4* adv / 50 trim t04e / Ported E6 / Gutted Knifed intake / Stinger 3->2.5" / Adj. Cam Pulley / Warlboro 255

To Do: PIMP/MS2, FMIC, Bigger Inj
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jangus Offline
Senior Member
#3
I'd like to know how they managed to keep the stock port locations and chambers and still managed to improve coolant flow to reduce blowing headgaskets (usually comes from detonation, not overheating). There's only so much room in the casting, and if they kept everything stock location and enlarged the ports, they have LESS room for coolant flow. What a bunch of crap.
The only reason it runs cooler is because it's ALUMINUM. HELLO.
And the price give is for a bare head. No valvetrain or cam.
88TC 5speed, 160,000+, ranger roller, Evergreen T3, cone filter, manual boost controller.
One parts car still waiting to be taken apart.
Waiting in the garage: SC throttle body, SC intercooler, graphic equalizer, among other things.
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dd88T/C Offline
Senior Member
#4
I can see how the head gasket blowing is prevented. Heat is a cause of detonation. Heat will also cause a cast head to warp, thus causing a gasket to pop. Lower engine temps means less chance of detonation, less chance of warping a head, and less chance of popping a gasket. However, I am not sure about the coolant flow. That ones a mystery.
'88 tc daily driver
.48 t3, stinger fmic, boblog, ebay twin piston BOV, 3" stinger dp, 3" exhaust shop straight pipe to the axle, ported/knifed lower, gutted upper, 3" intake tube & k/n filter, kirban fpr (42 psi), walboro 255, gillis @ 22 psi, pony wheels
shelf:
sn95 tb, rr, zeitronix zt2 wideband, magnaflow muffler/turndown, MAF swap, tune
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TurboCoupe50 Offline
Posting Freak
#5
Gotta love their write up...

Quote:The Rapido Aluminum replacement cylinder head is not a high flow, high performance, racing cylinder head, although it does flow marginally better than a stock cast-iron cylinder head. Out of the box, it will IMPROVE your vehicles performance by virtue of "better power to weight" and "lower center of gravity". These differences will be immediately noticeable to all but the already "brain dead". Particular attention has been devoted to improved coolant flow to "eliminate the combustion chamber hot spots" the original cast-iron head is famous for. This trait contributes, in large part, to the cast-iron head tendency to blow head gaskets and to develop (and ultimately fail due to) cracking.
1988 Turbo Coupe331 AOD

1972 Comet GT

1969 Fairlane Cobra 428CJ 4-Speed
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Rob.. Offline
Member
#6
That head has been around for about a year or so.
I want to live in a world where monkeys don't dig up the dead and parade about in their shoes.
88 7F, SS big valve head, port matched in/ex, gutted and powdercoated intake, A-237, stealth T3/T4 Garrett hybrid, Abaco 85mm mass-air meter conversion, tripminder, Walbro 255 high pressure, SVOJohn tuned.
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T-BirdX3 Offline
Senior Member
#7
Ok, who is going to be the first to try it? Big Grin
'88 T-Coupe 5 speed/'88 T-Coupe Auto
'87 T-Coupe 5 speed/'87 T-coupe 5 speed(76k orig mile)
..... and there was light!
http://i1224.photobucket.com/albums/ee36...tled-2.jpg
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TurboCoupe50 Offline
Posting Freak
#8
Not me, :eek: I can buy TWO heads with valves for that kind of money... Actually I paid about about $250 less for my Trick Flows, but that was in '99...
1988 Turbo Coupe331 AOD

1972 Comet GT

1969 Fairlane Cobra 428CJ 4-Speed
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Pete D Offline
Administrator
#9
I think that head has been out for 3-4 years. I don't think I have heard anybody post here that they are using it??
Pete Dunham


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David85TC Offline
Member
#10
Well how about now? anybody tried it?? Big Grin
1985 Turbo coupe 71,000 miles Medium Red Metallic with Gray cloth interior, all option except leather and passenger power seat. All stock. But unfortunatly she has bad rust.

1988 Turbo coupe 88,000 miles Sandalwood with base leather seats, all option except moonroof and passenger power seat. Bone stock.

1985 30th Anniversary T-bird.
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