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02-03-2019
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#1 |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 815
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New Coils and brackets
Long time since I shared any R&D. Here is a sneak peek at the mock-up of new 8 individual coils mounted on the stock base plate. This is just a shop engine, the 427 obviously doesn't have the secondary throttle stuff in the way.
These are Bosch motorsport coils, as used on current EFI Nascar engines. They will be fired direct by the new ECU. Yes, I tried to find coil-on-plug boots to allow direct mounting, but was not happy with the way the boots fit. So, for now it will still use plug wires from coils to plugs. Big shout out to CT Machining (Carter) for the mounting brackets.
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Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
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02-03-2019
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#2 |
 Join Date: Aug 2013
Location: Holland
Posts: 80
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Re: New Coils and brackets
That’s looking good! Nice Job.
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02-04-2019
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#3 | |
   
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
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Re: New Coils and brackets
Quote:
Sexy !!!!!
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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02-04-2019
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#4 |
 Join Date: Jun 2013
Location: PA
Posts: 879
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Re: New Coils and brackets
I think COP would ruin the look of the valve covers personally. While the heat under the plenum isn't ideal, I think it's the best spot.
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02-04-2019
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#5 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: New Coils and brackets
Todd, While investigating CnP I was advised that the CnP was a better solution than COP. Apparently, CnP puts out a much better, hotter spark.
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[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 |
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02-06-2019
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#6 |
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Join Date: Oct 2018
Location: ohio
Posts: 68
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Re: New Coils and brackets
you can have a much larger coil with coil near plug. Look at the size of ls coils compared to pretty much any coil on plug. They are twice the size and are known for putting out a ton of power.
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02-06-2019
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#7 | |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 815
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Re: New Coils and brackets
Quote:
That’s true, but extreme coil power isn’t really terribly relevant with a normally aspirated LT5. In this case, more isn’t always better/needed. These are a little more than 50 Mj energy output, if I recall. Sent from my iPhone using ZR-1 Net Registry
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Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
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02-06-2019
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#8 |
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: New Coils and brackets
Nice Install.. Doe everything fit under the plenum? I assume the added space of not having the OEM IM helps
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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02-06-2019
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#9 | |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 815
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Re: New Coils and brackets
Quote:
Oh yes. Plenty of clearance. No ICM helps a bit. Sent from my iPhone using ZR-1 Net Registry
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Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
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