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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Rich's LS powered 944 track car

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Re: Rich's LS powered 944 track car

Post  pormgb on Wed Aug 20, 2014 1:34 pm

erioshi wrote:Odd thought, but have you guys considered looking into the electric power assist units like are found on the Prius and I believe some other hybrid cars?  I have read they are reasonably light, and ultimately allow for the assist level to be varied through software based on a number of inputs.

My Honda S2000 has electric assist and I love it!!
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Re: Rich's LS powered 944 track car

Post  944-LT1 on Wed Aug 20, 2014 2:21 pm

$1300  Shocked  Looks like you could mount it under the dash.

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Re: Rich's LS powered 944 track car

Post  Lemming on Wed Aug 20, 2014 3:04 pm

Rich,

No flow controller or restrictor yet, but the system is not yet tested.  I did get everything put together, put fluid in the system and ran the starter to prime and check for leaks.  I am using a 10-row oil cooler in the system.  Will know if it works by this weekend.

EDIT: Started the car up and ran it on the lift for 10 minutes. No leaks in the hydroboost system  Very Happy 
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Re: Rich's LS powered 944 track car

Post  pormgb on Wed Aug 20, 2014 11:20 pm

Found this information on LS1Tech.com, it may help understanding how LS1 power steering pumps match 944 racks.


The first depth is the C5/C6 Corvettes, Caddy CTS-V, Pontiac G8

Corvette LS1, LS6, LS2, LS7,(and I think supercharged LS9):
2.4/2.8 GPM 1250/1350 psi

Pontiac G8
2.0 GPM 1200-1300 psi
(of note for FD swaps, V6 model is 1100-1200 psi, I'm checking to see if it can work with the G8 accessories, doubt it)

Cadillac CTS-V, all years with LS6 and LS2:
1.9-2.1 GPM 1640/1740 psi

I think this is the shallow depth?:
2009+ CTS-V from LSA motor:
2.7 GPM, 1625/1850

Next grouping is GTO/F-body depth accessories

GTO - ALL YEARS w/LS6 and LS2,(04-06):
1.95/2.35 GPM 1100/1200 psi

Camaro/F-body 98-2002:
2.7/3.1 GPM 1200-1300 psi


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Re: Rich's LS powered 944 track car

Post  Rich L. on Thu Aug 21, 2014 8:15 pm

Here are a couple of ugly bits found while working on the power steering.

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Re: Rich's LS powered 944 track car

Post  Lemming on Thu Aug 21, 2014 8:25 pm

Never use cross-drilled for anything other than looks, certainly not for track use!
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Re: Rich's LS powered 944 track car

Post  Rich L. on Thu Aug 21, 2014 8:28 pm

They are OEM 965 "cast hole" rotors. I tried them because they're way cheaper than the 928 GTS rotors that have no holes. But I hear ya... GTS rotors ordered... $$ coughed up...
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Re: Rich's LS powered 944 track car

Post  Rich L. on Thu Sep 11, 2014 1:58 pm

Turn One pump is installed. Rotors are replaced with new 928 GTS ones w/o holes. And I've put Racer's Edge monoballs in the front control arms to match those in the rear. The car is aligned, new tires mounted, ready to go. However, I've blown my back out again so my trip to the track in Oregon next week may be off.

Rich
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Re: Rich's LS powered 944 track car

Post  Lemming on Thu Sep 11, 2014 6:02 pm

Sorry to hear about your back, hope you can still make your track weekend.

When you do get out, please get PS fluid temps with the new setup. I'm curious if there is really a difference. Is the pump the only thing that has changed in the PS/HB setup?

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Re: Rich's LS powered 944 track car

Post  Rich L. on Thu Sep 11, 2014 6:59 pm

No HB, just PS here. But yes, the pump is the only change since last time out when the fluid pushed over 200 in just a few laps.
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Re: Rich's LS powered 944 track car

Post  Rich L. on Fri Apr 24, 2015 3:26 pm

Well, looks like a blown steering rack. I've got fluid coming out of the boots on both sides after 3 days on track since the reinstall of power steering with a Turn One pump. There were warnings I read that this would happen... thought I'd try it anyway... bummer.

So does anyone know if a freshly rebuild rack will hold up better than the 20 year old one? Does this ps pump from Turn One need the pressure turned down? Any other ideas besides a manual rack? Tried that, didn't like it.

Rich
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Re: Rich's LS powered 944 track car

Post  docwyte on Fri Apr 24, 2015 5:35 pm

No issues for the past 5 years with my rebuilt rack and Turn One pump

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Re: Rich's LS powered 944 track car

Post  Techno Duck on Fri Apr 24, 2015 7:20 pm

My original 20 year old rack was actually still going strong; thought it was blown but ended up being a broken high pressure fitting. Survived a little over 3k miles; a bunch of auto-x's and one track day.

I bought a rebuilt one from CarSteering on eBay; cost was $250. Only a few miles on it, but so far so good.

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Re: Rich's LS powered 944 track car

Post  Rich L. on Sat Apr 25, 2015 4:43 pm

okay, thanks guys. ordered a rebuilt rack and we'll see how it does.
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Re: Rich's LS powered 944 track car

Post  Porvette951 on Sun Apr 26, 2015 10:47 am

hey doc, might need to remind me what your setup is, not using hb just rack? what cooler are you using? after Rich's experience, starting to wonder whether my dinky derale cooler is adequate.
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Re: Rich's LS powered 944 track car

Post  docwyte on Sun Apr 26, 2015 11:29 am

Mustang hydroboost, remanned rack from Zim's, and a medium sized PS cooler.  Got the cooler from Summit Racing when the car was first built.  So far, so good.  The cooler isn't the biggest and I considered installing a larger one this off season, but since its worked fine so far I left it alone.

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Re: Rich's LS powered 944 track car

Post  Rich L. on Sat May 30, 2015 10:01 am

The rebuilt rack survived a two day DE without leaks. I went with a dino ATF this time instead of synthetic. Car ran great. Caught a passed a v10 R8 driven by one of the other instructors. Granted, he was on street tires to my Nittos, but still it earned me some cheers.

Rich
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Re: Rich's LS powered 944 track car

Post  Rich L. on Sat Jun 27, 2015 2:18 pm

Well, the 3rd day ended early with rack/engine contact. What I noticed was inconsistent notchy-ness to the steering, particularly in sharp turns. With the car back home and on the lift, the engine has clearly settled and is the oil pan is resting on the rack and crossmember.  Suspect

Last time this happened, one of the engine mounts had failed. This time, however, the mounts look intact and all the bolts are still there and tight. I can't tell what has moved to let the engine settle like this. Suggestions? scratch

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Re: Rich's LS powered 944 track car

Post  Lemming on Sat Jun 27, 2015 2:31 pm

When mine dropped, it was the bushing in the engine mount. Also check the stud/bolt holding the mounts on to the crossmember to make sure it is not broken.
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Re: Rich's LS powered 944 track car

Post  Rich L. on Sat Jun 27, 2015 3:28 pm

Bingo! Nice call Tim.

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The bushing material is gone, that crusty black bit of plastic is all that's left. This let the engine move around a bunch, the sleeve banging around in the tubular part of the mount. Yikes!

Tim, what did you do to fix it? I'm poking through your thread, did you post?

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Re: Rich's LS powered 944 track car

Post  Lemming on Sat Jun 27, 2015 4:15 pm

I got new bushings from Eric.
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Re: Rich's LS powered 944 track car

Post  Rich L. on Sat Jun 27, 2015 4:19 pm

Do you think the new ones are better and will last longer? I just pulled the bushings out of my old mounts that failed with the captured bolt breaking. The bushings look fine even with way more miles on them the those in the newer ones. I guess I'll just install the older bushings in the newer mounts and hope for the best...

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Re: Rich's LS powered 944 track car

Post  Lemming on Sat Jun 27, 2015 4:22 pm

My first set failed, Eric sent me new bushings and mounts. I just checked the bushings and they look fine and it's been at least a year since I swapped them out.
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Re: Rich's LS powered 944 track car

Post  Rich L. on Sat Jun 27, 2015 4:49 pm

Okay, thanks.

Passenger side done. But the driver side is a bigger pain with the alternator and steering shaft in the way. Oh well... HERE I GO
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motor mount bushings

Post  944convert on Sat Jun 27, 2015 5:00 pm

Rich L. wrote:Do you think the new ones are better and will last longer?
Maybe Eric can tell us if and when a change was made.

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