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

Mon Jul 08, 2013 3:56 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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Hydroboost mounting plate

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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  944-LT1 on Fri May 04, 2012 11:22 pm

fliermike45 wrote:...photograph it from all angles so the future hybrid builders could see all revealed.

You bet! Cool
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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  xschop on Sat May 05, 2012 6:23 am

Grenade Hybrids should have consulted with you guys..... maybe they would have gotten the cereal bowl mod right.. Every pic I've seen the bowl had to be chopped/rewelded to clear the driver's head.

Mike, on your setup, could you slot holes on the square HB adapter plate that matched the firewall vertical holes and give you some angle adjustment?
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Hydroboost mounting plate - Page 2 Empty Slot holes

Post  fliermike45 on Sat May 05, 2012 6:44 pm

Looks like I'm going to have to do that, I have jigged up 12 degrees on the bench and it makes a big difference. We need to talk about a billet angled plate, will send you a PM tomorrow with some sketches and ideas.

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Hydroboost mounting plate - Page 2 Empty Jigged Hydroboost

Post  fliermike45 on Sat May 05, 2012 7:49 pm

Here are the pics of the Ford Hydroboost set at 12 1/2 degrees.


Hydroboost mounting plate - Page 2 Cimg1728

Hydroboost mounting plate - Page 2 Cimg1729

Hydroboost mounting plate - Page 2 Cimg1730

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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  xschop on Sat May 05, 2012 9:05 pm

Your answer is your cereal bowl, just drill the HB plate 72mm x 72mm to match the cereal bowl....longer pushrod of course.
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Hydroboost mounting plate - Page 2 Empty Cereal bowl went to the cereal bowl heaven.

Post  fliermike45 on Sat May 05, 2012 9:38 pm

Cereal bowl went with the rest of the redundant stuff, do you have a spare one?

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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  xschop on Sun May 06, 2012 2:12 am

I use mine for mock-ups. IIRC there is like 34mm extra length of a pushrod when it is used.
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Hydroboost mounting plate - Page 2 Empty cereal bowl

Post  87-944S on Sun May 06, 2012 8:01 pm

Autoatlanta has them for twenty bucks or so.
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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  Admin on Mon May 07, 2012 7:31 am

Cereal bowl hits the motor! you'll need to modify the bowl to make it fit, then your booster will be to far forward. You need to mount the hydro booster as close to the fire wall as you can. Also move it 1/4" towards the driver side strut tower, that will give you better clearance as well. The angle looks to be to great, The push rod has to determine the angle of the plate. It has to go in and out perfectly straight or it'll bind on the edge of the hole where the push rod goes in.

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Post  xschop on Mon May 07, 2012 9:42 am

In that case, mod the clevis for the offset.
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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  948inVA on Mon May 07, 2012 2:56 pm

Mike, this is the plate that came with my hydro boost - it's yours if you want it. I'm using Eric's plate so have no use for it.

Hydroboost mounting plate - Page 2 Imag0314

Hydroboost mounting plate - Page 2 Imag0315
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Hydroboost mounting plate - Page 2 Empty Truck coils with HB

Post  fliermike45 on Thu May 31, 2012 8:16 pm

Have completed the physical work for the HB unit install.
Have searched the threads and need info and pictures concerning truck coils and whatever is required to fit them higher on the engine.

My coils are now on the shock tower, but getting at the rear spark plug is going to be impossible from above. I had to refit the rear plug wire from underneath the car.
Guess I have to move the coils.

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Hydroboost mounting plate - Page 2 Empty Truck Coils

Post  87-944S on Thu May 31, 2012 8:55 pm

The coils bolt right on to the existing valve cover, you need to get the coils with the brackets. Here's a pic of mine:

https://944hybrids.forumotion.com/gallery/Personal-album-of-87-944S/Truck-Coils-Painted-Valve-Cover-Huge-Wires-pic_1085.htm

You also need longer wires, I used Taylor 409s.



Last edited by 87-944S on Thu May 31, 2012 8:57 pm; edited 1 time in total (Reason for editing : Added wire infor)
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Hydroboost mounting plate - Page 2 Empty Truck coils

Post  fliermike45 on Thu May 31, 2012 10:12 pm

Many thanks,
Do the truck coils fit with the LS1 fuel rail?
Can I use the LS1 coil connector loom? If not, is the LS2 coil loom plug compatable with the LS1 harness?
I have Accel wires which are longer than the stock LS1 wires.

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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  xschop on Sun Aug 12, 2012 1:08 pm

I'm making a few of these custom Hydroboost firewall plates with adjustability (1/4") sideways movement. All 100% CNC'd billet aluminum Firewall plate and Steel HB angle plate. Price will be $200 shipped US-48. and I will need a head count of those interested in the first run. Will post pics soon.
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Hydroboost mounting plate - Page 2 Empty hydro boost

Post  kevin924kevin on Sun Aug 12, 2012 2:28 pm

Xschop, can u do one with the clutch slave hole built in also? For which HB unit is this for?
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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  xschop on Sun Aug 12, 2012 4:50 pm

This is for the Mustang Hydroboost, but any other hydroboost unit that is flat at the mating surface and screws on with a large set-nut will work also Very Happy

Specs.....FW Plate 3/8" T6061-T6 alloy
HB angle plate 3/16" tempered steel

Hydroboost mounting plate - Page 2 WP_000097


Last edited by xschop on Mon Nov 05, 2012 10:10 am; edited 1 time in total
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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  acorad on Mon Aug 13, 2012 11:48 am

I'm in.
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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  xschop on Wed Aug 15, 2012 10:23 am

Last call before I order more material.
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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  948inVA on Wed Aug 15, 2012 5:47 pm

This would definitely help with installation.. assuming the firewall plate can be bolted in first, and then the rectangular angle plate w/ hydroboost afterward. Problem I had was that the valve cover had to be removed to get the plate in (w/ HB unit bolted to it), but it's still a tight fit and I definitely scraped some paint in the process. I also welded the bolts to the plate, which gave me less room to slide it in. Do you have any pics of it installed?
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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  xschop on Thu Aug 16, 2012 9:51 am

That is exactly the way I designed it. It has slightly oversized holes at the firewall and slotted holes at the HB steel plate to ensure the rod side-side angle is adjusted easily before final bolt-down. The 12* is achieved/adjusted by washers on the lower two carriage bolts. I will send Allen button-head bolts on the next ones for even easier installation.

Eric Kramer should be getting his billet plate today and said he'll post final install pics.
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Hydroboost mounting plate - Page 2 Empty Re: Hydroboost mounting plate

Post  Arthropraxis on Mon Oct 08, 2012 9:22 am

Any more info on the hydroboost mounting plate? It sounds like the angle plate is flat and the angle is adjusted by shims/washers, is that correct?
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Post  xschop on Mon Oct 08, 2012 10:56 am

Correct, it is adjustable by adding or subtracting washers on the longer bottom two bolts, which I now have special ordered Allen button-head bolts and locknuts for easier install. The Pic above had carriage bolts. I have two complete plates left. I honestly don't know when I'll be able to build more as I'm in limbo with new home construction/moving etc. I may even sell the 948 so I can start my next build immediately in my new "shop" Smile
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Post  xschop on Mon Oct 08, 2012 11:59 am

Only one left. I'm not 100% sure if the BMW system bolts on and what thru-hole diameter the angle plate would have to be for it and it's lock-nut. Anyone know?
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Post  87-944S on Mon Oct 08, 2012 4:50 pm

I had to cut a 2 5/8 inch center hole for mine, with a 4 hole mounting pattern that is the same as Porsche cereal bowl to vacuum booster bolt pattern.
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