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  • 1 Post By 1795
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  #1 (permalink)  
Old 09-27-2019, 06:44 PM
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Default Do I have to use an HTOB on an AP car?

I have seen a significant number of reports regarding failure of HTOBs.
I would be keen to use an external slave in a conventional clutch actuation setup rather than an HTOB if I have the space to do that.
Can anybody with an AP 427 or a AP 289FIA, fitted with a Windsor engine, tell me if:
1. they have been able to fit an external slave and clutch fork
or
2. they think there is room to fit an external slave and clutch fork

(I'm using a QuickTime bellhousing/scattershield; not sure if that would make a difference)

Cheers
Glen

Last edited by xb-60; 09-28-2019 at 01:10 AM.. Reason: Edit
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Old 09-29-2019, 04:18 PM
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I don't think so Glen unless you modified the tunnel.
I had to shave the bellhousing as per manual to get it in. Very Limited space.
That is with a TKO 600 behind a 302 Windsor.

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Old 09-30-2019, 01:49 AM
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I don't think so .....
I take it that means definitely not, Brett?
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Old 10-03-2019, 04:52 AM
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I’ve seen failures of badly done HTOB’s, but ford specced them for the T5, Saab specced them for most stuff and there are plenty out there.
If you’ve read about failures it sounds to me like you’re willing to throw money at a ghost rather than identify the root cause and correct it.
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Old 10-04-2019, 12:00 AM
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Treeve,
Quote:
Originally Posted by xb-60 View Post
I have seen a significant number of reports regarding failure of HTOBs
....here on Club Cobra forum.

I don't want to "throw money at a ghost" and I also don't want to have to remove the engine and transmission if the HTOB fails.

Not quite sure what you mean?

Cheers
Glen
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Old 10-09-2019, 04:11 AM
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I mean: if the failures are legit, then find out what caused them and fix that, rather than reinventing your whole installation. HTOBs can only fail for a small number of reasons. Alignment, and over stroking. Over stroking is pretty common when badly set up. Easy to fix by putting it in properly in the first place. Also cheaper than trying to go to a fork arrangement and all the packaging that would go with it.
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Old 10-09-2019, 04:22 PM
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Understood.
I know that correct alignment is essential and that overstroking will cause damage.
It also appears that McLeod HTOBs are more likely to have 'issues'.....and Tiltons are the more sensible choice.

Cheers
Glen
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Old 10-09-2019, 04:41 PM
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Glen,

I know that Tilton has a good reputation. I have been racing with a McLeod HTOB for three years now with no failures under race conditions. Maybe I got one of the good ones.

Jim
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Old 10-09-2019, 08:22 PM
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I got mine from Mal Wood in Warwick QLD.
Not a problem with install and setup with any questions answered over the phone.

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Old 10-10-2019, 03:54 AM
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Brett - Tilton or McLeod?

edit: went (as a visitor) to a Vic. Cobra Club mtg tonight and your car was spoken of very favourably by Vic. members who were at the Cobra Nats

Last edited by xb-60; 10-10-2019 at 04:06 AM..
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Old 10-10-2019, 05:15 PM
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Default Htob

Hi Glen
Mal uses ACE which I think they make themselves.
Yes, #98 was a crowd favorite and went well to boot.

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Quote:
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Brett - Tilton or McLeod?

edit: went (as a visitor) to a Vic. Cobra Club mtg tonight and your car was spoken of very favourably by Vic. members who were at the Cobra Nats
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