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12-23-2006, 06:26 PM
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#1
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Registered User
Join Date: Nov 2006
Location: Hollywood, FL
Posts: 40
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70 hp out of ignition sound too good?
I was talking to a guy at a machine shop that was cutting my stick shift to make it shorter and he was asking me what type of engine I had. I told him that I had a firebird and that it was a 94 with an LT1. The moment I told him, he said that they where really good engines except the ignition really holds it back. If I were to replace the ignition in the LT1 he said that it could free up 70 to 80 hp easily. I didn't really believe the guy, but he had built 1000 hp chevy short blocks for racing cars more than once, so he must have known what he was talking about. He kept trying to explain it to me but it only confused me more.  Anywho, does this sound right? Getting 70-80 hp just from ignition? He told me that it should be the first mod I do to the car before slapping anything else in it.
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12-23-2006, 06:28 PM
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#2
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Registered User
Join Date: Jan 2005
Location: lakeland, fl
Posts: 609
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I wouldnt let someone like that touch my car. he is full of **** tell him to lay down the crack pipe
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12-23-2006, 06:33 PM
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#3
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Banned
Premium Member
Join Date: Oct 2006
Location: Goochland, Va.
Posts: 5,093
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if the guy knows his stuff then you missed something somewhere...you either did not understand what he was telling you or he is an idiot
my guess is if he would take time out of his day to cut a shifter....he was probly drinking wild irish rose and smokin a $5 giblet
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12-23-2006, 06:34 PM
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#4
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Registered User
Join Date: Nov 2006
Location: Hollywood, FL
Posts: 40
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He was talking really specific though, saying how the ignition coils shrink at 4200 rpms, and by getting the MSD set up (the whole gig), that it could easily free up 70-80 hp. I dunno, I'm going to go back to that guy to see if he can write down what he told me :P
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12-23-2006, 06:37 PM
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#5
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Banned
Premium Member
Join Date: Oct 2006
Location: Goochland, Va.
Posts: 5,093
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yeah do that...I think most people have all the ignition stuff and get about a zero h.p. gain its good to have but it doesent really make h.p.
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12-23-2006, 06:37 PM
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#6
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Registered User
Join Date: Jan 2005
Location: lakeland, fl
Posts: 609
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lmao, MSD ignitions are usually used for boost / nitrous applications to help prevent detonation. The TRUTH is they will net you around 1rwhp
more of a safety feature if you ask me
I am running the msd digital 6 btw and it didnt gain me any faster track times after the install
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12-23-2006, 07:01 PM
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#7
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Registered User
Join Date: Oct 2006
Location: Spokane WA
Posts: 1,865
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Maybe a 1000 hp engine with a stock ignition would only make 925 hp and 1000 hp with an upgraded one. Trying to get in his head, if i really can  I got the whopping 1 hp gain but then added the supercharger so it is worth every penny.
__________________
1994 Z-28 LT1 A4, Powerdyne Supercharger 6 psi, 3.73 Gears, GMPP 1.6 Rockers, LT4 Springs, 42LB injectors, PCMFORLESS, All MSD ignition, Inline fuel pump, SLP sub frames, Panhard Bar, strut bar and rear control arms & LCA relocation, 1LE sway bar, Mid pacesetter's. 3" exhaust to Jegs electric cutout. Nitto NT555R Extreme Drag Radial 275/40R17
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12-23-2006, 07:32 PM
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#8
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Registered User
Join Date: Mar 2002
Location: Ocala, Florida
Posts: 3,222
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youll gain exactly 0rwhp over the stock ignition, and don't let that guy come within 20ft of your car.
__________________
97 Z28 M6 3.73's 430rwhp/386.7rwtq 11.89@120.2 1.93 60'
Engine - stock 105+k mile shortblock, Ai 200cc heads/cam, jethot longtubes, true duals, cai, asp u/d pulley, 58mm tb, unported intake, stock waterpump
Suspension - Koni's, strano springs, strano swaybars, umi phb, LCA's, C5 brakes
Last edited by speed_demon24; 12-23-2006 at 07:34 PM.
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12-23-2006, 07:40 PM
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#9
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Registered User
Join Date: Dec 1969
Location: Little Rock, AR
Posts: 28,441
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He might as well have said 70 MPG, 'cause 70 HP ain't gonna happen [either].
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12-23-2006, 07:57 PM
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#10
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Moderator
Join Date: Dec 1969
Location: Buffalo, New York
Posts: 10,806
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It takes more electrical energy to make a spark with high cylinder pressure (i.e. boost). That's the main reason a blower car, or a very high compression race engine needs a better ignition. The old (early 80's) GM HEI systems would crap out about 4,500rpm. Maybe that's what he was thinking of when he heard "LT1"?
Rich
__________________
'95 Z-28 383: Procharger, nitrous, etc. BBC 27T race car. "Every man dies, not every man really lives" William Wallace (Braveheart)
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12-23-2006, 11:03 PM
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#11
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Registered User
Join Date: Oct 2002
Location: Albuquerque, NM. 5300ft Elevation
Posts: 1,151
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Was his last comment "i'm an MSD dealer you know...."?
Ken R.
__________________
1995 Z28 M6 383ci FMIC/Meth injected & Sprayed Vortech YSi @ 12psi. 10.65 @ 133mph.
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12-24-2006, 03:22 PM
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#12
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Registered User
Premium Member
Join Date: Mar 2005
Location: Aurora, IL
Posts: 12,357
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Let me know what ignition system it is, I'll dump this Mallory piece of junk in no time.
__________________
1997 Camaro Z-28
A4,3.23s,T-tops,Black,Leather
Pacesetter LTs,catted ORY,Magnaflow CB,Spohn suspension, NX dual nozzle w/ Gen X2 upgrade,Mad Z28 tune,Mallory 685
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12-24-2006, 10:06 PM
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#13
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Registered User
Join Date: Oct 2003
Location: DOVER DE
Posts: 2,153
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I actually picked up about 300hp when I replaced my stock ignition with a Delteq.
My results might be a bit skewed though, because my stock coil was bad at the time.
__________________
My 94 LS1/M6 Z28 98+ SS Clone, MAC mids w/cats, Borla cat back, QTP E-cutout, MTI Stealth II, SLP Lid, LS6 intake, EFI Live tunning, B&M shifter, BMR adj torque arm & LCAs, C5 front & LS1 rear brakes w/ Powerslot rotors & Hawk HPS pads.
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12-24-2006, 10:13 PM
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#14
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Registered User
Join Date: Oct 2006
Location: northern indiana
Posts: 400
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this one hit a nerve. i think ther was a problem with the old stuff if that was the case. it could happen but not looked at the REAL reason why it gained so much. or he misread the numbers somehow. soem guys are good at carbs and don't understand fi that much
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12-25-2006, 01:44 PM
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#15
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Registered User
Join Date: Oct 2003
Location: DOVER DE
Posts: 2,153
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Unless there is a sinificant problem with the ignition system it would be unlikely to even pick up 7hp. The oly way to pick up 70hp would be to way screw up the timming maps. The old large cap HEI systems (in stock form) were the only ones I know of to fall on their face above 4500rpm.
__________________
My 94 LS1/M6 Z28 98+ SS Clone, MAC mids w/cats, Borla cat back, QTP E-cutout, MTI Stealth II, SLP Lid, LS6 intake, EFI Live tunning, B&M shifter, BMR adj torque arm & LCAs, C5 front & LS1 rear brakes w/ Powerslot rotors & Hawk HPS pads.
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