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Quote:
Originally Posted by RarlyL8 View Post
Well the red rocket left out yesterday, but apparently she didn't want to leave me either.
The new owner (great guy) called me about an hour out saying the car was down with what sounded like a broken head stud. This engine has ARP head studs so I really was hoping that not to be possible. Turns out one of the air injection plugs blew out. Picked a hellofa time to do that! I had one go on my about 8 years ago and changed them out with no issues since. Anyway, we got the car over to EurAsian in Birmingham. So if any of you guys are in B'ham and want to check out my (former) car it will be there for a few days. I gave the new owner a set of new front struts that I had not installed and they will be put in as well.
Brian, looks like you unloaded it just in time...LOL

I'm sure it couldda thrown a plug on anybody and especially somebody who may not have learned how to properly warm an ole girl up before boosting
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FS 1987 930 DTAFast EFI w/Electronic Dash, 17x9x11" Lindsey Racing Fuchs, Andial 8.39 R&P, C2 Intake, SuperCup Cams, Flame Ringed Heads & Cylinders, TurboKraft Full Bay Intercooler, RearlyL8 Twin Scroll Headers, Big Bullseye Twin Scroll Turbo...SOLD
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2014 BMW X6M, 2012 BMW 128i, 2014 GMC Sierra, 2015 Cobia 237 Center Console 300hp Yamaha
Old 01-05-2012, 10:02 AM
  Pelican Parts Technical Article Directory    Reply With Quote #161 (permalink)
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I was beside myself until the diagnosis came in. What are the odds? That was an expensive $5 plug indeed.
You may have hit the nail on the head concerning the temperature. It was cold as hell and this car is not normally driven when it is that cold (20F).
I got up early and ran the car several laps around the 'hood to warm the engine before I went to the hotel to meet the guy. The car was left idling while he went over it all, then we went for a ride. I told him to really watch the boost when the air is this cold as the tires will cut loose easy. He thought I meant while going around a curve. I said nooooo, I mean in a straight line. You should have seen the look on his face. I turned the car around, short shifted into 2nd and stepped into the throttle. The rear tires instantly went up, I played it out, hit 3rd and did it again. I think "holly****" was the exclamation. I handed the car over after that and he drove it around all morning to get used to it before leaving after we had lunch.
I gotta hand it to this guy, he took the breakdown really well and not once was the least bit irritated with me personally. Together we got him to the shop and I think the experience from then on was very positive.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 01-05-2012, 10:25 AM
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I stole 30 minutes before I went to bed last night to install the repaired axle. Got that done and noticed the trunk was popped. The latch quit working so I took a look. The carpet in the trunk has not been pulled back so I had no idea what I would see.
You guessed it. Found (what's left of) this little fellow. Owner must have put poison in the barn as there is very little evidence of droppings anywhere. When it comes time to pull the carpet out of the trunk it may get interesting.



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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 01-06-2012, 08:37 AM
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If I were a dog I'd be rolling on my computer screen right now
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FS 1987 930 DTAFast EFI w/Electronic Dash, 17x9x11" Lindsey Racing Fuchs, Andial 8.39 R&P, C2 Intake, SuperCup Cams, Flame Ringed Heads & Cylinders, TurboKraft Full Bay Intercooler, RearlyL8 Twin Scroll Headers, Big Bullseye Twin Scroll Turbo...SOLD
1999 Harley Davidson Custom 1250 Hardtail Bobber..SOLD
2014 BMW X6M, 2012 BMW 128i, 2014 GMC Sierra, 2015 Cobia 237 Center Console 300hp Yamaha
Old 01-06-2012, 08:41 AM
  Pelican Parts Technical Article Directory    Reply With Quote #164 (permalink)
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I noticed the last time I had the car out that the dinky boost gage was pegged on 1bar all the time even when the engine was off. I know these gages are junk but I want everything to work.
What is wrong that causes full deflection all the time?
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 01-06-2012, 02:45 PM
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If it is the stock one, don't they peg with ign on and sensor not connected?
Old 01-06-2012, 02:46 PM
  Pelican Parts Technical Article Directory    Reply With Quote #166 (permalink)
 
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Quote:
Originally Posted by RarlyL8 View Post
I stole 30 minutes before I went to bed last night to install the repaired axle. Got that done and noticed the trunk was popped. The latch quit working so I took a look. The carpet in the trunk has not been pulled back so I had no idea what I would see.
You guessed it. Found (what's left of) this little fellow. Owner must have put poison in the barn as there is very little evidence of droppings anywhere. When it comes time to pull the carpet out of the trunk it may get interesting.




If that little critter got in there, I would check to see if any of them got behind the engine fan shroud and built a nest.
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Old 01-06-2012, 04:09 PM
  Pelican Parts Technical Article Directory    Reply With Quote #167 (permalink)
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Well, I laid my eyes on Ye Ole Red Rocket when I went down to Eurasian to retrieve my 2012 Porsche calendar. Beautiful car. I was trying to figure out how I could swap out the seats with mine and not be caught. oh well I still have my old planks in he car. Hey Brian, what you go-na name your new little furry buddy? That is good advise, check the fan shroud. Another friend of mine purchased a 993 that was sitting for a long time in a garage. It had one whole side of the motor inhabited. We called that one the $25000.00 Willard. Good luck with the new ride. Hope to see you soon
Old 01-06-2012, 04:30 PM
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The factory boost gauge isn't bad, most of the sending for it units are not accurate. They live a harsh life on the motor.

The origonal electric gauge reads pressure before the throttle body and most mechanical gauges are reading from the intake manifold after the throttle body. There is a difference and it's nice having both.
Old 01-06-2012, 05:18 PM
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First thing I did when I got the car was check the engine for mice. Inside the shroud seems like a perfect place to build a nest. Don't know how to check thoroughly without removing the fan though.

The clock boost gage I had in the red rocket was a mechanical gage hooked into the same spot as the OEM sending unit. I never liked cutting into the brake line.
So if the gage is stuck on 1bar does that mean the sending unit is bad or that the electrical connection going to the unit is grounded out? I've got about 1/2 dozen 930 BOVs laying around so I can try a different sending unit. Won't do me any good if the problem is the wiring.

Thanks for the help!
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 01-06-2012, 06:59 PM
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Mine did that last week, wire was loose.
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Old 01-06-2012, 10:23 PM
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The wire is tight but that doesn't mean it's not corroded or broken. I'll check the sending unit and clean the spade connector for the wire. I actually like the placement of the 1bar boost gage front and center and would like to use it if I can get it to work accurately. A separate boost/vac mechanical gage will probably be put in the shifter console to use for tuning purpose.

Parts keep trickling in. I have been waiting on these 2 items with great anticipation :


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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 01-07-2012, 11:20 AM
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I know what you mean about a steady stream of boxes! LOL the fedex guy knows my house now, waiting on 2 big boxes from B&B..,,
Old 01-07-2012, 11:58 AM
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Brian, you might also want to look at the 14 pin connector and pull the cover to do a continuity test from the boost gauge sender to the connector. Also look on the back of the tach to see if the spade connector got pulled off somehow.

What the heck size are those tires! ?
Old 01-07-2012, 12:21 PM
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B&B? Unless that stands for Brian Bodart we need to talk, ha!

As for the tires, we're going retro

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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 01-07-2012, 07:20 PM
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are those bad boys gonna rub? thats what was on mine when i bought it and a little bump would make it rub.
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Old 01-07-2012, 09:17 PM
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Jim, I pulled off the 14 pin connector and cleaned the pins when I first got the car. I'll do that trace if cleaning the spade doesn't do the trick.

They won't rub when I'm finished mounting them. The fenders have to be trimmed, the oil lines moved, and the trailing arm bolts ground down. I used to run Yokos on the red rocket and they were 3/4" wider than the Pirellis so these should be less work to fit.
You have a picture of yours with the fat boys on? Our cars are similar, I'd like to see what yours looked like.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 01-07-2012, 09:23 PM
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I've got a newish boost sending unit I had on my car for about a year before I converted to EFI and started driving the gauge off an ECU output. Let me know if your interested in it. When I bought my car the gauge was pegged all the time, touch the sending unit wire to ground to test the gauge, should go to zero.
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Old 01-08-2012, 03:27 AM
  Pelican Parts Technical Article Directory    Reply With Quote #178 (permalink)
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Thanks Fletch, I'll give that a try! Can I assume the engine must be running for this test vs just having the key on?
No work is being done on the gray ghost this weekend as heat exchangers and year-end accounting has consumed my life. My reprieve is to come here and post when I take a break.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 01-08-2012, 04:27 AM
  Pelican Parts Technical Article Directory    Reply With Quote #179 (permalink)
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Quote:
Originally Posted by fletcher0780 View Post
................................touch the sending unit wire to ground to test the gauge, should go to zero.
+1
Also, if that doesn't work, try a test from the engine ground to the intercooler. Hopefully, it's just a bad ground and not some varmit-eaten conductor.

I take it that the engine was well cared for and someone wouldn't have put teflon tape or silicone'd the threads of the sending unit to the IC?
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'85 930 Factory Special Wishes Flachbau
Werk I Zuffenhausen 3.3l/330BHP Engine with Sonderwunsch Cams, FabSpeed Headers, Kokeln IC, Twin Plugged Electromotive Crankfire, Tial Wastegate(0.8 Bar), K27 Hybrid Turbo, Ruf Twin-tip Muffler, Fikse FM-5's 8&10x17, 8:41 R&P
Old 01-08-2012, 05:41 AM
  Pelican Parts Technical Article Directory    Reply With Quote #180 (permalink)
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