LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Summit opti

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Old Jul 17, 2008 | 06:21 PM
  #21  
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compression was around 120,119 first crank all around
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Old Jul 17, 2008 | 06:29 PM
  #22  
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ok do i need a seal for they opti, if so where do i get it from?
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Old Jul 17, 2008 | 06:47 PM
  #23  
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Originally Posted by saint_fan77
ok do i need a seal for they opti, if so where do i get it from?
I have done two installs (one being my car) without a seal and both have had no problems. I have seen opti's shipped both with a seal and without.
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Old Jul 17, 2008 | 10:03 PM
  #24  
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ok good so mine didn't come with one so i wont try and find one.
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Old Jul 17, 2008 | 11:02 PM
  #25  
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Personally, I would only use original GM optispark. For a model year 1994 like mine, you would need the spline drive non-vented one. Hope this help some.
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Old Jul 18, 2008 | 03:17 PM
  #26  
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AC Delco or Delphi is the way to go.

Originally Posted by saint_fan77
compression was around 120,119 first crank all around
Compression numbers are usually the highest each cylinder will stop climbing too. Not the first number.
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Old Jul 18, 2008 | 07:22 PM
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i actually put the jegs brand opti in my car because i was hard up for money at the time... and i also had an msd cap and rotor and put it in... and so far (about 5k miles) all is well... hasnt missed a beat yet... so its probably a hit or miss deal, and i hope i got a hit (knock on wood!)
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Old Jul 18, 2008 | 08:27 PM
  #28  
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Originally Posted by squeals99
i actually put the jegs brand opti in my car because i was hard up for money at the time... and i also had an msd cap and rotor and put it in... and so far (about 5k miles) all is well... hasnt missed a beat yet... so its probably a hit or miss deal, and i hope i got a hit (knock on wood!)
Hopefully your rotor screws won't back out on you like mine did in my Jeg's brand opti after two weeks.
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Old Jul 18, 2008 | 09:17 PM
  #29  
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one thing i learned always take the screws off the rotor and use thread lock on them, even when opti is brand new.
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Old Jul 18, 2008 | 09:18 PM
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I didn't on an opti I had on my car. 2 years and the screws were tight. needless to say on the new opti I loctited them
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Old Jul 19, 2008 | 12:46 AM
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oh yeah i def. lock-tited my rotor screws... so i hope it lasts me for a good while now
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Old Jul 20, 2008 | 09:25 AM
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I put the MSD distributor in my 97 about 12k miles ago but the car runs like **** anyway. My headers leak, blow gaskets and manage to loosen loctited bolts and just recently cooked my MSD wires. I gotta say though it certainly looked like it was built tough. Honestly the summit opti looks kinda like the accel opti.
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