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carsonmx114's Avatar
 
Join Date: Jun 2005
Location: backwoods, alabama
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Does anyone know if I can delete the VSS from my LS1 ECM? Does the speed sensor in the porsche trans stand alone? Does it use a body control module? I'm about to get my ECM flashed and any info would be helpful.
Thanks,
Lee

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Old 07-05-2011, 03:12 PM
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well the interior is coming along..just a few more odds and ends and a nice set of coca mats. i bought a quick release for the steering wheel. but, there is not enough depth to the steering wheel adaptor to allow me to use my horn button. i will have to have a one half inch spacer made in order to use the fitti horn button. oh well ! all in all i think that i will be pleased with the lightweight interior..
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71 911 all alum 434 sbc 585 chp 1959 austin healey bn-6 sbc zz4 motor 200r4 aod transmission......1959 Austin healey bn6 250 chev in line six cylinder, tremec 5 speed
Old 07-09-2011, 08:03 AM
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i have been working on the car but had a couple of issues. car cranked on first attempt and runs fine. considering all the wiring and gauge replacement and drive by wire throttle i was very pleased and maybe a bit surprised.one small leak from a valve cover gasket and a leaking water line...not clamped tight enough. but, could not get the clutch to release properly. pulled the motor and trans and regreased the guide tube and ensured all was well in side the bell housing. installed a new clutch cable and still not quite right. pulled the pedal cluster and the nylon bushings on the clutch release arms were worn considerably. ordered a bronze bushing kit frpm stoddard and just finished rebuilding the pedal cluster and reinstalling it. will make hopefully final adjustments to the clutch and hargett shifter tomorrow......i had a spacer machined so that i could use the fitti porsche horn button with the quick release steering wheel mechanism purchsed from dave at TRE. worked out just right and added another one-half inch to the quick release hub which added three-fourths of an inch for a total of 1.25 inches.
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71 911 all alum 434 sbc 585 chp 1959 austin healey bn-6 sbc zz4 motor 200r4 aod transmission......1959 Austin healey bn6 250 chev in line six cylinder, tremec 5 speed

Last edited by lin7310948; 07-24-2011 at 11:29 AM..
Old 07-24-2011, 11:23 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #83 (permalink)
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pic of the cab with steering wheel finished and in place. gauge package worked out well and anxious to check out the GPS speedometer. oops not quite finished in this picture. i replaced the socked head screw.s with button head screws
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71 911 all alum 434 sbc 585 chp 1959 austin healey bn-6 sbc zz4 motor 200r4 aod transmission......1959 Austin healey bn6 250 chev in line six cylinder, tremec 5 speed
Old 07-24-2011, 11:35 AM
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just about ready for the time being. still will probably redo the sport seats in the original perforated centers and solid vinyl bolsters. work to be completed on the ventilation system. rebuilt the pedal cluster using bronze bushings, new clutch cable and set to factory adjustment specs...but the clutch is still dragging slightly. only been around the block a couple of times and hopefully will loose just that final little bit?? i may have to retune the sensitivity of the drive by wire accelerator pedal...maybe once i start driving i will adjust. oh well still lots of small things but by and large the car should be ready!! a couple of pics in street trim...the flowmaster hushpower pro series muffliers sound really good at idle and slow speed... now if i could just afford a nice set of work meister five spoke wheels...
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71 911 all alum 434 sbc 585 chp 1959 austin healey bn-6 sbc zz4 motor 200r4 aod transmission......1959 Austin healey bn6 250 chev in line six cylinder, tremec 5 speed

Last edited by lin7310948; 08-03-2011 at 04:42 AM..
Old 08-03-2011, 04:33 AM
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A real beauty! You have done an amazing job! Years of fun ahead!
Old 08-03-2011, 05:13 AM
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thanks yan. that is one of the strong points of the conversion...ls7 parts are plentiful and fairly inexpensive and lots of ls expertise available, and an engine compartment that allows access for most maintenance!and a really simple engine compartment for 700 chp.
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71 911 all alum 434 sbc 585 chp 1959 austin healey bn-6 sbc zz4 motor 200r4 aod transmission......1959 Austin healey bn6 250 chev in line six cylinder, tremec 5 speed

Last edited by lin7310948; 08-03-2011 at 06:50 AM..
Old 08-03-2011, 06:47 AM
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I can't agree more. My 89 911 LS1 might not have 700 chp but 1/2 of that is pretty fun to drive.! I have been trying to figure out a stalling issue when the clutch is depressed. RH says it is because of the light flywheel. The only thing is that it doesn't happen all the time? Have you had any issues with the stalling? Anyone else - chime in...

thanks!
Old 08-03-2011, 07:11 AM
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yan, does it stall when you press the clutch in or stall when you let it out? the mast motorsports ecu has a safety wire for the clutch when cranking. the switch must be grounded when the car is to be started. i changed to an on-off switch and placed the switch in a non visual place and i use as an anti theft deterrent..
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71 911 all alum 434 sbc 585 chp 1959 austin healey bn-6 sbc zz4 motor 200r4 aod transmission......1959 Austin healey bn6 250 chev in line six cylinder, tremec 5 speed
Old 08-03-2011, 09:35 AM
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Have fun passing the 'purists' on the track.
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Old 08-03-2011, 10:09 AM
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Stalling happens when you press the clutch in. It could happen when you are coming to a stop and press the clutch in and hold it in. If you are quick with the clutch and then into neutral it won't stall. If you raise the idle mechanically to about 900 rpm that is usally enough to keep the car from stalling. The stalling doesn't happen all the time. When it is happening - it keeps happening. The odd thing is that it only started happening about a month ago.

thanks again,

Yan
Old 08-03-2011, 10:32 AM
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Quote:
Originally Posted by Yan2947 View Post
I can't agree more. My 89 911 LS1 might not have 700 chp but 1/2 of that is pretty fun to drive.! I have been trying to figure out a stalling issue when the clutch is depressed. RH says it is because of the light flywheel. The only thing is that it doesn't happen all the time? Have you had any issues with the stalling? Anyone else - chime in...

thanks!
I have this problem with every GM V8 conversion I've done, which is quite a few at this point. You need a VSS to stop this. Do you have your check engine light hooked up? If not you should, and it should be off.

These guys make some conversion VSS sensors that work very well.

V-8 Vehicle Speed Sensors (VSS), Speedometers, V8 Conversions, Stealth Conversions
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Old 08-03-2011, 10:44 AM
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The check engine light is not hooked up. Do other guys have a VSS hooked up on their ls1/7 conversions? Does the LS1 have an output for check engine?

thanks!
Old 08-03-2011, 11:21 AM
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Quote:
Originally Posted by Yan2947 View Post
The check engine light is not hooked up. Do other guys have a VSS hooked up on their ls1/7 conversions? Does the LS1 have an output for check engine?

thanks!
The check light comes off the same harness as the ADL connector, the light is +12v and then grounded by the ECU to light. If you don't have an ADL or a light it's going to be difficult to tell if you're ever running correctly.

I've seen a lot of people try and get by without using all of the sensors and they always have odd running conditions or, "something not quite perfect" about their conversion.

The transplant should run as perfectly as the donor vehicle it was removed from. There are sensor solutions out there for every piece of these conversions.
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Old 08-03-2011, 11:28 AM
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My check engine light wire is connected to the alternator light in the instrument cluster. I do know that everything was working great for a while so I am thinking it is not a VSS issue or it would have always turned up. There is too much lateral movement outside of the specs with the crank. That may be a bearing issue and could cause similar symptoms.

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Old 08-03-2011, 03:46 PM
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i have a check engine light in my conversion with the mast ecu.
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71 911 all alum 434 sbc 585 chp 1959 austin healey bn-6 sbc zz4 motor 200r4 aod transmission......1959 Austin healey bn6 250 chev in line six cylinder, tremec 5 speed
Old 08-03-2011, 03:53 PM
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Hi,
Amazing, Amazing!

Very nice job, the car looks tight.

Do have any under the front hood pics?
Also any pics of the car from the side? (like to see how she sits with all the liquids in)
Are you happy with the running temperature?

Thank you for sharing your conversion with us!
Old 08-04-2011, 08:35 AM
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not quite ready for real street driving..might have to lower the rear just a bit. my front was already to high and i will lower it as well. not finished with the luggage compartment. still tidying up to do. i removed the front ventilation fan and intake box and am building a fresh air box replacement. as i have not driven on the street other than around the block, i am not sure of the running temps. im thinking that i might have to enlarge the primary grill opening...hope not as it is a genuine Ruf part. but wont hesitate if necessary. it fits really well and i did not wish to use an aftermarket replacement...thanks for the comments
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71 911 all alum 434 sbc 585 chp 1959 austin healey bn-6 sbc zz4 motor 200r4 aod transmission......1959 Austin healey bn6 250 chev in line six cylinder, tremec 5 speed
Old 08-05-2011, 05:58 AM
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will probably insure and pickup a license plate next week. posting a couple of front compartment pictures. norhing fancy. i bought one of those holey Rennline covers but did not care for it. my original cover was in decent shape. i also removed the front fan and vent system. i built an air collector box with drain and attached it to the original hot ports from the heat ducting. blows ambient temp air into the cab right above the level of the knees. for heat, i will take hot air from the rear of the radiator enclosure and vent into the cab using the same ports. of course i will have to close off the ports from the air collection box during cold weather.. if necessary i will add a couple of inline duct fans such as the nascar guys use to move the air with more force..hot air heating...but from the radiator hot air. i also made a hood prop of sorts. my hood is aluminum so not much weight to hold up! very simple using an old worn out hood shock and i was not going to drill on the hood to use one of the rsr type props.. plenty of room for an econo spare tire such as the 996 uses. also the modified original tank holds at least 18 gallons. i already had a gallon or two in the tank and added 17 more gallons and had not reached overflow/venttube level.
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71 911 all alum 434 sbc 585 chp 1959 austin healey bn-6 sbc zz4 motor 200r4 aod transmission......1959 Austin healey bn6 250 chev in line six cylinder, tremec 5 speed
Old 08-13-2011, 06:41 AM
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well my first post was about nine months ago with the purchase of the fuel pressure regulator and filter...got my plate and insurance yesterday afternoon and set off this morning on the maiden shake down trip and went fourteen miles of 45 to 50 mile speeds through commercial areas. no high rpm nor quick acceleration. all gauges showed good numbers. checked for leaks and other than a slight valve cover gasket all seemed fine. no water leakage. not really hot this morning...maybe 85.... so not like out on a 95 to 100 degree day. im hoping that the front opening in the ruf bumper cover will allow enough air to the radiator. do not wish to alter a genuine Ruf piece but will if necessary. the ECU turns the fans on at about 195 degrees. i could tell that the modified ls7 was really wanting to go!! not yet???

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71 911 all alum 434 sbc 585 chp 1959 austin healey bn-6 sbc zz4 motor 200r4 aod transmission......1959 Austin healey bn6 250 chev in line six cylinder, tremec 5 speed
Old 08-17-2011, 06:28 AM
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