944Hybrids: 924/944/968 and 928 V8 Conversions
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HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 2:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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External vs internal slave

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External vs internal slave Empty External vs internal slave

Post  joecitizennn on Tue Dec 27, 2011 3:15 pm

In all the project cars I have looked at I see the use of an internal slave cylinder for the throwout. In the 944 conversion shopping list I saw mention of using the slave from an 84-88 vette which seems to be an external type. Is there clearance for this setup, because i would prefer to have an external slave if possible. Any pictures would be great.

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External vs internal slave Empty Re: External vs internal slave

Post  944-LT1 on Tue Dec 27, 2011 6:21 pm

The LS conversions use an internal slave cylinder. There is no provision on the C5 bellhousing for an external slave cylinder i.e. mounting location and access for a fork.

The LT conversions use an external slave cylinder. The bellhousing for the LT conversions mainly came from RH which was a custom made housing.

You dont mention what engine youre using or what bellhousing.


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External vs internal slave Empty HTOB

Post  fliermike45 on Tue Dec 27, 2011 7:16 pm

The internal slave cylinder is in fact a combination unit, it's a slave cylinder and throw out bearing.

Hence the name HTOB....Hydraulic throw out bearing.

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Post  suboptimalfit on Tue Dec 27, 2011 7:40 pm

The 928 5speed kit from Renegade uses the '84-'88 Vette bellhousing,EXTERNAL slave, and the small 153 tooth flywheel.

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External vs internal slave Empty Re: External vs internal slave

Post  joecitizennn on Tue Dec 27, 2011 7:47 pm

I understand the mechanical aspects of either system, I just happen to dislike the internal type as they have been a pain in my azz in past experience. My engine is a 1997 aluminum head lt1 which I was going to mate a sbc bellhousing to and use a gm throwout/slave and home made adapter. If there is enough clearance to use an external slave however, I want to go that route. Very interested in what people have been using... pictures especially.

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Post  joecitizennn on Tue Dec 27, 2011 7:49 pm

I guess I should add here that this engine is going in a carrera bodied 924s.

I would post pictures but I don't know if I can here.

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External vs internal slave Empty Re: External vs internal slave

Post  joecitizennn on Thu Dec 29, 2011 1:48 pm

Have been looking through the gallery here and still have yet to see evidence of anyone using an external slave or a 924 or 944 lt1 conversion. Been looking at bellhousings from firebirds and camaros from the 80s and though the slave bracket sticks out far, it does tilt down at an angle and I am thinking it might fit.

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External vs internal slave Empty Re: External vs internal slave

Post  spence on Thu Dec 29, 2011 1:57 pm

Here's an example...
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I have a LT1, but I'm using a hydraulic throwout bearing so I can't help you... I think it would be very tight with an external slave, but it's been done before.
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Post  joecitizennn on Thu Dec 29, 2011 5:12 pm

I saw that picture, but other pictures if internal slave cylinders lead me to think that he did not use this setup. Also there is no explination of what the bellhousing is off of. I would guess corvette? Since the camaro parts are easier to find I was hoping they could be used. I may just have to find out the hard way.

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External vs internal slave Empty Re: External vs internal slave

Post  spence on Thu Dec 29, 2011 5:19 pm

He used it... It's a custom bellhousing from renegade hybrids.
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Post  joecitizennn on Thu Dec 29, 2011 7:40 pm

Sounds expensive. Has anyone tried to use a manual bellhosing from an 80s camaro?

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Post  spence on Fri Dec 30, 2011 4:07 am

I'm using a 1978 GM A Body Bellhousing (#464697); so I'm sure an 80's Camaro bellhousing would work on a LT1 too.
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Post  joecitizennn on Fri Dec 30, 2011 6:57 am

I am sure it will bolt up to an lt1, but that gawky big tab that sticks out for the slave sylinder attachment looks troublesome. It angles downward on the drivers side, and i expect it may interfere with the firewall.


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External vs internal slave Empty Re: External vs internal slave

Post  spence on Fri Dec 30, 2011 7:33 am

Here's an underbody shot of my car. It may give you an idea on room with the external slave. It would be pretty tight (if it would even fit)!

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Post  joecitizennn on Fri Dec 30, 2011 8:33 am

I have seen that picture too. In fact that is a picture that got me thinking of using a bellhousing other than a c5 setup. Nice pictures and impressive build BTW.

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Post  spence on Fri Dec 30, 2011 2:04 pm

Thanks, good luck with whatever you decide to do Very Happy
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