02-18-2012 | #1 |
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,394
|
Ignition Impulse @ Balancer/Dampner
I found another unusual LT5 goodie in my stash. New balancer/dampner machined for interference fit with the impulse wheel. Once it's properly timed with the crank, would probably be best to drill & tap for small screws to keep it in place.
Anyone care to step forward with some information & suggestions?
__________________
Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
02-18-2012 | #2 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
|
Re: Ignition Impulse @ Balancer/Dampner
I am guessing this was the crank trigger that was to be used when they did the 2 Bentley LT-5 engines...the engine in Michigan that was for sale some time ago had a trigger setup and was a Bentley engine
....you can see the motor in the Thunder at Stillwater video...they actually are talking about it(what the motor is) but the music drounds out the audio
__________________
LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
02-18-2012 | #3 |
Join Date: May 2005
Location: Nichols, FL
Posts: 615
|
Re: Ignition Impulse @ Balancer/Dampner
Do you have any of the phase 2 motors? If so what are the s/ns. Geoff gave Britt a document that lists what engine is what car.
Tyler
__________________
55 Polo White (Project) 61 Jewel Blue (Sold to buy above) 66 Nassau Blue 68 Torch Red 88 ZR1 Blue 90 ZR1 White |
02-18-2012 | #4 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
|
Re: Ignition Impulse @ Balancer/Dampner
24 hole reluctor with the other 8 holes to tell the engine firing order????
http://lukeskaff.com/?page_id=380
__________________
LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
02-18-2012 | #5 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
|
Re: Ignition Impulse @ Balancer/Dampner
We might be able to interface that w LS PCM to run CnP
although still issue of secondaries.
__________________
[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
02-18-2012 | #6 | |
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,394
|
Re: Ignition Impulse @ Balancer/Dampner
Quote:
__________________
Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
|
02-18-2012 | #7 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
|
Re: Ignition Impulse @ Balancer/Dampner
I am guessing doug Rippie might know how these work
__________________
LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
02-19-2012 | #8 |
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
|
Re: Ignition Impulse @ Balancer/Dampner
Yea, it sounds so official! So this would or could be made to work if bolted to the balancer and we use a ECM from an LSx motor to just run the ignition system? We could delete our ignition box and coils and how would we tell our LT5 ECM it's alright nothing is wrong?
__________________
1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
02-19-2012 | #9 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
|
Re: Ignition Impulse @ Balancer/Dampner
Jerry,
I love getting you excited . A 24 tooth reluctor is what is used to trigger the LSx Coil near Plug ignition. A crank sensor on that wheel can feed the signal to an LSx PCM which in turn would send the firing signal to each of the coils. Our Zs have a 9 tooth reluctor so that crank signal is incompatible with the LSx programming unless somehow?? it could be converted. However, once we get passed that hurdle, we still have the issue of 2 sets of VE and SA tables. Some of us have yanked the secondaries, but the calibrations still use both sets of tables since the Port Closed tables are used when throttle is closed for idle conditions. Probably no way to get injector pulse width small enough with 2 injectors operating. If that wheel was to go into a Bentley or even for marine use, I imagine there was a different ECM for that or at least different programming which would make sense given the different environment the motor would be operating in.
__________________
[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
02-19-2012 | #10 | |
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
|
Re: Ignition Impulse @ Balancer/Dampner
Quote:
P.
__________________
Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
|
|
|