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#1
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I know there are tons of posts on these and I've spent a bit of time reading them but I find that it's kind of like "Googling your symptoms".
I was leaning towards the IMI but it seems some folks have had problems with pinion to flywheel spacing. Was that a short run of problem starters or what? I read that the IMI has the lugs on the block side and the Powermaster has them near the manifold? Any advice welcome.
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Greg Reid Palmetto, Georgia |
#2
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IMI for me. Never had a problem with them and I've installed probably 7 or more on customers cars.
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62' Lemans, Nostalgia Super Stock, 541 CI, IA2 block, billet 4.5" crank, Ross, Wide port Edelbrocks, Gustram intake, 2 4150 style BLP carbs, 2.10 Turbo 400, 9" w/4:30 gears, 8.76 @153, 3100lbs |
#3
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I've used 3 of the cheaper Summit brands. Never had a problem. Maybe I'm just lucky. Don't know.
Just curious. Have you guys had problems with them and/or know of others who have had problems ? ![]() I have actually never heard of any. Obviously, you'd expect some of the much higher priced models to be better. If I really wanted to find the best, I'd probably contact some Pontiac class racers & see what their experience is. Norman Warling races, along with his brother. And he's neighbors with Scott Burton. Norman is a member here, who posts occasionally. I'd probably PM him & find out what those guys have used on their high compression Stock & SS engines. |
The Following User Says Thank You to ponyakr For This Useful Post: | ||
#4
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I love my RobbMc. One reason is that you can clock it so the solenoid is underneath keeping it away from the heat of the headers. And they have great customer service after the sale.
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1979 Trans Am WS-6 .030 455 zero decked flat pistons 96 heads with SS valves 041 cam with Rhoads lifters 1.65 rockers RPM rods 800 Cliffs Q Jet on Holley Street Dominator ST-10 4 speed (3.42 first) w 2.73 rear gear __________________________________________________ _______________________________ 469th TFS Korat Thailand 1968-69 F-4E Muzzle 2 |
#5
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I bought a RobbMC years ago for a 455 I was planning to build, and before I got a chance to use it, the OEM starter failed on my '67 Cutlass. I threw the RobbMC on the Olds 330 and it's been starting that car ever since. Maybe one of these days it will see service on a Poncho motor...
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Mike ![]() |
#6
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My brother has had a Powermaster XS on his ~500hp 461ci for 5 or so years now, and he LOVES it. Not only has it been rock-solid reliable, but it eliminated the hot start issues he had been having for many years. I bought one for my car, too, but haven't used it yet.
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![]() 1966 Pontiac GTO (restoration thread) 1998 BMW 328is (track rat) 2023 Subaru Crosstrek Limited (daily) View my photos: Caught in the Wild |
#7
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if/when it needs replaced i will consider another one or go with a robbmc. |
#8
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Powermaster starters and alternators here for many years and miles. Great customer service
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Chris D 69 GTO Liberty Blue/dark blue 467, 850 Holley, T2, Edelbrock Dport 310cfm w Ram Air manifolds, HFT 245/251D .561/.594L, T400, 9" w 3.50s 3905lbs 11.59@ 114, 1.57/ 60' |
#9
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My Summit starter didn't last but a few years. The IMI has been on there ever since. Close to 20 years now.
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'65 Tempest 467 3650# 11.30@120.31 |
The Following User Says Thank You to Scott65 For This Useful Post: | ||
#10
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IMI. It's the only thing that came off my old engine and is going on the new one.
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#11
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IMI on mine. Don`t even remember how old it is. No problems ever. Even on an 11 to 1 455.
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#12
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Another vote for the Powermaster XS 9510. We just installed one on a 467 we just built, works excellent. The stroker 467 was built using a 1979 W72 400/4 Speed block, and it required NO Shims at all. We used the Ram 1557 billet steel flywheel along with it.
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1978 Trans Am Pump Gas 461 Stroker |
#13
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very happy with powermaster, both starter and alternator are great. and great customer service too.
can’t overstate the convenience of a ford solenoid too. i don’t like the idea of a massive always-hot wire running from the battery all the way down to the starter. |
The Following User Says Thank You to i82much For This Useful Post: | ||
#14
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I have the Powermaster 9510 Can't comment on reliability since I haven't had it long. But the performance is great.
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70 TA, 467 cid IAII, Edelbrock D-port heads, 9.94:1, Butler HR 236/242 @ .050, 520/540 lift, 112 LSA, Q-jet, TKX (2.87 1st/.81 OD), 3.31 rear https://youtube.com/shorts/gG15nb4FWeo?feature=share |
#15
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I've had Power master XS with good success. They too have proved to have good customer service.
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#16
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Powermaster products are made in the U.S., too. From what I've read, they are good people. Here is a Motor Trend article about a visit to their factory in West Chicago: https://www.motortrend.com/features/...ance-facility/
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![]() 1966 Pontiac GTO (restoration thread) 1998 BMW 328is (track rat) 2023 Subaru Crosstrek Limited (daily) View my photos: Caught in the Wild |
#17
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Been using a CVR starter for over 20 years now. Rebuilt it a couple years ago. Still going strong.
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#18
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Well, from your comments I would say that it seems that all of them are satisfactory at least. During my search I found a few threads where people had to have part of the IMI machined away in order to get the pinion clearance closed up.
One further question - which ones have the lugs away from the exhaust? One of the comments I read was that the Powermaster placed the wires very near the exhaust manifold and that the IMI had them on the opposite side. I'm leaning towards the IMI at this point. Cost is relevant for me. I'm not racing nor do I have a high compression engine. It's probably about 9.5 to 1.
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Greg Reid Palmetto, Georgia |
#19
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I too have been using a CVR for 20 years now. Its finally getting weak though. Can you provide details on the rebuild? Parts required? Thanks jon
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'78 Macho T/A DKM#95, 460cid, SRP pistons, KRE 310 D ports, 3" pypes, Hooker 1 3/4" headers, hydraulic roller, 10" Continental, 3.42 gears 11.5 @117.5mph 3900lbs ![]() ([_|_] ##\|/##[_|_]) |
#20
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One of the issues that l read about with some the IMI starters was excessive clearance between the starter pinion and flywheel. This is front to back clearance, not tooth clearance. Well, lucky me, l got one of those. The clearance is supposed to be between .040" and .100".
I have about .140"...Grrrr! EDIT- Just talked to Chris at lMl. He told me that as long as the extended pinion caught at least 75% of the flywheel that I'm good. I'm catching probably a good 90% of it so it looks good to me.
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Greg Reid Palmetto, Georgia Last edited by Greg Reid; 01-31-2022 at 05:44 PM. |
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