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E-85 sippin drunk
Join Date: Jan 2002
Location: Warner Robins, GA
Posts: 1,506
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knock sensor location..Ideas??
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Brad...930 gt-1 racecar, increased displacement to 3.6L, JB racing Cylinders, JE 8 to1 pistons, stroked crank, Carrillo rods, extrudehoned 3.2L intake, full bay Bell I/C, GT-2 EVO cams, Rarly8 headers, GTX-35RS turbo, twin plug, P&P heads, Link G4 EFi system, G-50/50 with LTD slip and oil squirters/oil cooler, zork tube, full race coilover system, with carbon fiber body, full cage, E-85 sippin drunk |
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 8,726
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3.2's don't have knock sensors, I believe only the 993 had. This has been talked about at length, but for some reason, it slips my memory where most prefer.
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E-85 sippin drunk
Join Date: Jan 2002
Location: Warner Robins, GA
Posts: 1,506
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Yea.... I remembered after posting that said it was only a 3.6 liter that had them.
there is also a longer stud that is one of the three studs and bolts the engine throttle bell crank or quadrant to the engine block and I was thinking about using that one. that stud is located at the base of cylinder number 3 on the crankcase itself
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Brad...930 gt-1 racecar, increased displacement to 3.6L, JB racing Cylinders, JE 8 to1 pistons, stroked crank, Carrillo rods, extrudehoned 3.2L intake, full bay Bell I/C, GT-2 EVO cams, Rarly8 headers, GTX-35RS turbo, twin plug, P&P heads, Link G4 EFi system, G-50/50 with LTD slip and oil squirters/oil cooler, zork tube, full race coilover system, with carbon fiber body, full cage, E-85 sippin drunk |
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Registered User
Join Date: May 2001
Location: S.F. North Bay
Posts: 1,257
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Try using SEARCH on this forum. Like Tippy said, lots of discussion.
One spot I know of is underneath the left side of the throttle bellcrank plate. Obviously, that will require some work to get at, but you are not going to find any suitable spot that won't require a little work to get at it. GL JR |
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Registered User
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I had a single sensor on the breather cover before converting to twin 993 bridges, seemed to work well.
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E-85 sippin drunk
Join Date: Jan 2002
Location: Warner Robins, GA
Posts: 1,506
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I was able to attach the sensor to the side of Cyl #2. Drilled and tapped a hole on the side of the intake. There is enough meat on there to get a good 10 to 12 threads tapped... Tightened up perfectly, and now the knock sensor is right at the head.
[IMG] ![]()
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Brad...930 gt-1 racecar, increased displacement to 3.6L, JB racing Cylinders, JE 8 to1 pistons, stroked crank, Carrillo rods, extrudehoned 3.2L intake, full bay Bell I/C, GT-2 EVO cams, Rarly8 headers, GTX-35RS turbo, twin plug, P&P heads, Link G4 EFi system, G-50/50 with LTD slip and oil squirters/oil cooler, zork tube, full race coilover system, with carbon fiber body, full cage, E-85 sippin drunk |
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I would rather be driving
Join Date: Apr 2000
Location: Austin, TX
Posts: 7,614
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Great location. I really like the knock sensor on the head. Would be great to have one on both sides of the engine. How much did you have to clearance the cooling shroud to clear the sensor?
I have installed them at the base of the throttle plate next to cyl#3. Just shorten the aluminum spacer the same amount as the thickness of the knock sensor.
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Jamie - I can explain it to you. But I can not understand it for you. 71 911T SWT - Sun and Fun Mobile 72 911T project car. "Minne" - A tangy version of tangerine classicautowerks.com - EFI conversion parts |
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E-85 sippin drunk
Join Date: Jan 2002
Location: Warner Robins, GA
Posts: 1,506
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Quote:
Thanks! I did not have to do any clearancing of the air shroud. It fit with no problems....
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Brad...930 gt-1 racecar, increased displacement to 3.6L, JB racing Cylinders, JE 8 to1 pistons, stroked crank, Carrillo rods, extrudehoned 3.2L intake, full bay Bell I/C, GT-2 EVO cams, Rarly8 headers, GTX-35RS turbo, twin plug, P&P heads, Link G4 EFi system, G-50/50 with LTD slip and oil squirters/oil cooler, zork tube, full race coilover system, with carbon fiber body, full cage, E-85 sippin drunk |
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Registered User
Join Date: Jul 2003
Location: Glorious Pac NW
Posts: 2,894
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Exactly where Bosch say not to mount it.
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'77 S with '78 930 power and a few other things. |
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E-85 sippin drunk
Join Date: Jan 2002
Location: Warner Robins, GA
Posts: 1,506
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I have never hear that... However, I will be able to tell via the laptop if it is working or not...
If it is not working, I will regroup, and pick a different location....
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Brad...930 gt-1 racecar, increased displacement to 3.6L, JB racing Cylinders, JE 8 to1 pistons, stroked crank, Carrillo rods, extrudehoned 3.2L intake, full bay Bell I/C, GT-2 EVO cams, Rarly8 headers, GTX-35RS turbo, twin plug, P&P heads, Link G4 EFi system, G-50/50 with LTD slip and oil squirters/oil cooler, zork tube, full race coilover system, with carbon fiber body, full cage, E-85 sippin drunk |
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Registered User
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Mine is under the throttle linkage bracket:
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Roland 930 Turbo '81 Too many modifications to list |
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Registered User
Join Date: Jul 2003
Location: Glorious Pac NW
Posts: 2,894
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Quote:
You want to be bolted directly to the block. Apparently. Yes I know the factory used cylinder bridges on the later motors. Who the heck knows why? ![]() I used the M8 studs directly under the shroud - although at least a couple of folks have had sucess with using the throttle linkage mountings - which are certainly easier to get to. Jake Raby uses a bell-housing bracket on a Type IV, distance is not that critical. The denser the medium the further sound travels.
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'77 S with '78 930 power and a few other things. |
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 8,726
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Was reading that the frequency is so different than any other sound, that having false triggers were really not a problem.
Was thinking about this a little, and I agree since the valvetrain on our engines make "clacking" sounds while detonation makes more of a "tinking" sound, which is a higher pitched frequency. I'm going breather cover and see what happens with fingers crossed.
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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR P & C's, soon to be 993SS cams and GSXR 750 ITB's fed by 964 intake, Borg-Warner S366 turbo @ 1.4 bar, Treadstone full bay IC, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MegaSquirt 2 (v3.57 board) w/EDIS, Tramont wheels (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel |
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 8,726
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Sorry to hijack.......
![]() turbobrat930, just saw your sig. My gawd, what kind of power are you making with that combo? Jealous.....
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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR P & C's, soon to be 993SS cams and GSXR 750 ITB's fed by 964 intake, Borg-Warner S366 turbo @ 1.4 bar, Treadstone full bay IC, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MegaSquirt 2 (v3.57 board) w/EDIS, Tramont wheels (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel |
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E-85 sippin drunk
Join Date: Jan 2002
Location: Warner Robins, GA
Posts: 1,506
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Quote:
If it is not working where I put it, it will not take too long to change it...
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Brad...930 gt-1 racecar, increased displacement to 3.6L, JB racing Cylinders, JE 8 to1 pistons, stroked crank, Carrillo rods, extrudehoned 3.2L intake, full bay Bell I/C, GT-2 EVO cams, Rarly8 headers, GTX-35RS turbo, twin plug, P&P heads, Link G4 EFi system, G-50/50 with LTD slip and oil squirters/oil cooler, zork tube, full race coilover system, with carbon fiber body, full cage, E-85 sippin drunk |
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E-85 sippin drunk
Join Date: Jan 2002
Location: Warner Robins, GA
Posts: 1,506
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Quote:
![]() I am shooting for 750 at the flywheel on E-85. But I think I may need to step up to a bigger turbo in order to hit that... we shall see... I just installed dual 044 fuel pumps, and changed all the fuel stuff over to teflon SS braided line.. and we are running ID1000 injectors.. so could get close to 120lbs on the injectors with just a slight bump in fuel pressure... I am planning on a write up about finishing the project in a couple weeks when she runs for the first time..... ![]() ![]()
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Brad...930 gt-1 racecar, increased displacement to 3.6L, JB racing Cylinders, JE 8 to1 pistons, stroked crank, Carrillo rods, extrudehoned 3.2L intake, full bay Bell I/C, GT-2 EVO cams, Rarly8 headers, GTX-35RS turbo, twin plug, P&P heads, Link G4 EFi system, G-50/50 with LTD slip and oil squirters/oil cooler, zork tube, full race coilover system, with carbon fiber body, full cage, E-85 sippin drunk |
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 8,726
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Wowzer, I think you you might be there. E85 is some serious gas that allows a lot more power than a turbo is rated at.
Anxiously awaiting the write up. |
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E-85 sippin drunk
Join Date: Jan 2002
Location: Warner Robins, GA
Posts: 1,506
|
Quote:
That fuel is awesome for our cars... even more so because we are air cooled. I would like to see what it will do, but the final number is not really whats important to me. I will scale it back a bit, for longevitys sake... The car is mostly carbon fiber and only weighs 2100lbs... so very light... and very fast!!!
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Brad...930 gt-1 racecar, increased displacement to 3.6L, JB racing Cylinders, JE 8 to1 pistons, stroked crank, Carrillo rods, extrudehoned 3.2L intake, full bay Bell I/C, GT-2 EVO cams, Rarly8 headers, GTX-35RS turbo, twin plug, P&P heads, Link G4 EFi system, G-50/50 with LTD slip and oil squirters/oil cooler, zork tube, full race coilover system, with carbon fiber body, full cage, E-85 sippin drunk |
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 8,726
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That's litrebike acceleration hp/weight ratios! GL on the endeavor.
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one of the great unwashed
Join Date: Apr 2004
Location: Ringwood, NJ
Posts: 2,870
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I put mine here...
I didn't have the 993 bridge, and wasn't going to take everything apart. I haven't used them or set them up yet (no calibration). [img]
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Patrick E. Keefe 78 SC 01 Boxster |
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