C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Got a few questions

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Old Oct 28, 2005 | 08:08 PM
  #1  
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From: Lenoir City TN
St. Jude Donor '08-'09-'10-'11
Default Got a few questions

It will be getting cooler soon and I was planning on doing a few routine maintenance items on my 86 this winter that will take it out of commission for a little bit. My questions are:

1. I have leaking injectors, does anyone have the contact information for Rich or Rick I cant seem to find his website and I have heard good things about his work.

2. When I come to a stop light and kick into neutral the RPM hold a steady smooth 900-100 RPM while coasting but as soon as the car stops it drops to a smooth 600-700 RPM. There is no stumble, vibrations, hesitation cold or hot what so ever. Is this normal or is something that I need to look into?

3. I do not have to pass emissions where I live but should I replace the converter due to leaking injectors (it looks pretty beat up as well)? The previous owner removed the pre-cats though I already have a y-pipe ready for replacement w/ pre-cats. Also can someone shoot/attach a picture of what the air pump line to the converter looks lilke from the factory. Someone welded the damn thing together. (Also please do not tell me to remove the converter (flame suit on) I want to keep it all stock and I feel that we might be getting inspections. Also does anyone recommend a good standard replacement main cat?

4. Does anyone know if there is a gasket kit w/ all the needed gaskets for the fuel injector removal & installation.

Thanks in advance for any help/advice.

Bob
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Old Oct 28, 2005 | 08:24 PM
  #2  
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Originally Posted by rspreng86
It will be getting cooler soon and I was planning on doing a few routine maintenance items on my 86 this winter that will take it out of commission for a little bit. My questions are:

1. I have leaking injectors, does anyone have the contact information for Rich or Rick I cant seem to find his website and I have heard good things about his work.

2. When I come to a stop light and kick into neutral the RPM hold a steady smooth 900-100 RPM while coasting but as soon as the car stops it drops to a smooth 600-700 RPM. There is no stumble, vibrations, hesitation cold or hot what so ever. Is this normal or is something that I need to look into?

3. I do not have to pass emissions where I live but should I replace the converter due to leaking injectors (it looks pretty beat up as well)? The previous owner removed the pre-cats though I already have a y-pipe ready for replacement w/ pre-cats. Also can someone shoot/attach a picture of what the air pump line to the converter looks lilke from the factory. Someone welded the damn thing together. (Also please do not tell me to remove the converter (flame suit on) I want to keep it all stock and I feel that we might be getting inspections. Also does anyone recommend a good standard replacement main cat?

4. Does anyone know if there is a gasket kit w/ all the needed gaskets for the fuel injector removal & installation.

Thanks in advance for any help/advice.

Bob
# 2 sounds delightfully normal

as to # 3, are you sure it came with pre ctas? They are not needed to pass emissions, so you might want to avoid installing them

Don't know about anything else

Jack
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Old Oct 28, 2005 | 09:58 PM
  #3  
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Default

Originally Posted by rspreng86
My questions are:

1. I have leaking injectors, does anyone have the contact information for Rich or Rick I cant seem to find his website and I have heard good things about his work.
http://www.cruzinperformance.com/

2. When I come to a stop light and kick into neutral the RPM hold a steady smooth 900-100 RPM while coasting but as soon as the car stops it drops to a smooth 600-700 RPM. There is no stumble, vibrations, hesitation cold or hot what so ever. Is this normal or is something that I need to look into?
Completely normal

3. I do not have to pass emissions where I live but should I replace the converter due to leaking injectors (it looks pretty beat up as well)? The previous owner removed the pre-cats though I already have a y-pipe ready for replacement w/ pre-cats. I want to keep it all stock and I feel that we might be getting inspections. Also does anyone recommend a good standard replacement main cat?
If the injectors are leaking badly..then yes, replace the cats. Once the cat converter starts to break down the process continues...even if you fix what caused it in the first place.
Catco or Random cat's are the popular ones

4. Does anyone know if there is a gasket kit w/ all the needed gaskets for the fuel injector removal & installation.
Bob
Go to Advance auto, Pep Boys or the like and tell them you need the upper intake gasket set for your car. The kits are made by Rol & Felpro. It comes with gaskets for the runners (upper & lower), throttle body gaskets and O rings for the injectors. And costs about $15
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Old Oct 29, 2005 | 12:11 AM
  #4  
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From: SE NY
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Default

Do you currently have the rubber tube from the AIR diverter and any of the metal tube that that runs down to the cat? The metal pipe is fastened to the RH header-Y pipe flange with a hose clamp.

If you need any of the AIR stuff give a call to Contemporary Corvette (link on my site) as they vend new & used Vette parts and have a rather large Vette boneyard.

When you send the injectors to Rich don't forget the cold start injector. If you break any of the clips holding the injectors into the fuel rail leave the survivors on the injectors and Rich will replace any missing units. When you install the injectors apply a little motor oil to each O-ring to avoid nicking them on insertion.
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Old Oct 29, 2005 | 09:13 AM
  #5  
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From: Lenoir City TN
St. Jude Donor '08-'09-'10-'11
Default

Thanks for all the help. I have the air pump line that runs from the header and then along the y-pipe, that is when it runs into quite an ugly weld job making it impossible to remove easily. I guess I will need the tube plus the pieces that go from that to the little tube that sticks out on the converter.
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