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| corvetteronw | Help on my LT1 conversion | ||
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Senior Guru
 
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I am converting my 91 L98 manifold to a modified LT1 intake manifold. I reused the BoschIII injectors I got from FIC. They are still new in my mind as they have very few miles on them.
I did purchase new O rings for the fuel rail side as I know these can get ripped/cut easily. I have four questions: 1. What should I torque the fuel rail to manifold bolts to? 2. What should I torque the manifold to head bolts to? 3. Should I use thread sealer on the manifold to head bolts? 4. Does this look normal? I thought the injectors would seat farther into the manifold. Looks like only the bottom O rings are down in the pockets.  |
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Posted on: 2013/5/24 1:28
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A VETERAN IS SOMEONE WHO AT ONE POINT WROTE A BLANK CHECK MADE PAYABLE TO THE UNITED STATES OF AMERICA FOR AN AMOUNT OF UP TO AND INCLUDING THEIR LIFE. |
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| pianoguy | Re: Help on my LT1 conversion | ||
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Guru Emeritus
 
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Those don't look like they're seated correctly in the manifold. FIC sent me another set of o-rings to add to get my Bosch III's to seat correctly (the Bosch don't use the clips to hold he injectors into the rail like the factory injectors do). You might want to send your pic to him.
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Posted on: 2013/5/24 1:32
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1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey |
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| corvetteronw | Re: Help on my LT1 conversion | ||
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Senior Guru
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Some pics of where I stopped work tonight. Way behind on this project due to the major flooding that ruined the rooms in my basement a few weeks ago.
    Painted the manifold Chevy engine blue to sort of match the blue car. Andy sold me his fuel line from Bastet's car's former LT1 conversion. |
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Posted on: 2013/5/24 1:36
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A VETERAN IS SOMEONE WHO AT ONE POINT WROTE A BLANK CHECK MADE PAYABLE TO THE UNITED STATES OF AMERICA FOR AN AMOUNT OF UP TO AND INCLUDING THEIR LIFE. |
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| corvetteronw | Re: Help on my LT1 conversion | ||
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Senior Guru
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Quote:
Thanks - I will do that. |
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Posted on: 2013/5/24 1:37
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A VETERAN IS SOMEONE WHO AT ONE POINT WROTE A BLANK CHECK MADE PAYABLE TO THE UNITED STATES OF AMERICA FOR AN AMOUNT OF UP TO AND INCLUDING THEIR LIFE. |
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| BillH | Re: Help on my LT1 conversion | ||
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The Stig Moderator
 
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No way normal Ron.
Don't attempt to start the car with them like that. The O-rings have to seat down in the bore. |
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Posted on: 2013/5/24 1:39
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| corvetteronw | Re: Help on my LT1 conversion | ||
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Senior Guru
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Quote:
Thanks - I am contacting Jon right now to get his advice. |
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Posted on: 2013/5/24 1:41
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A VETERAN IS SOMEONE WHO AT ONE POINT WROTE A BLANK CHECK MADE PAYABLE TO THE UNITED STATES OF AMERICA FOR AN AMOUNT OF UP TO AND INCLUDING THEIR LIFE. |
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| pianoguy | Re: Help on my LT1 conversion | ||
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Guru Emeritus
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I snapped a pic of a couple of mine in case it helps (sheeeh, it's shamefully dirty!):
 Hard to tell from the pic, but the tops of the o-rings are about flush with the top of the bore in the manifold. And there is a second o-ring below those, which holds the injector at the right height. |
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Posted on: 2013/5/24 1:53
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1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey |
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| bogus | Re: Help on my LT1 conversion | ||
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Grand Imperial Pooh-Bah
 
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the Bosch III's fit a bit differently.
I seat mine into the manifold, then put the rails on top and tighten. |
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Posted on: 2013/5/24 2:52
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| Schrade | Re: Help on my LT1 conversion | ||
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Elite Guru
 
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Everything looks good so far - are the injectors just sitting there for a dry-fit check?
If not, pull them from the fuel rail, and see if they'll seat like that... |
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Posted on: 2013/5/24 6:54
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| corvetteronw | Re: Help on my LT1 conversion | ||
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Senior Guru
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Here is the answer I got from Jon at FIC.
hi the second o ring is not a seal it’s a seat that sits in the chamfer of the manifold to hold the injector further in the rail// looks perfect jon Now - local speed shop is drilling and tapping my remote thermostat housing to accept the water temp sensor. That, and a few other details will let me proceed. |
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Posted on: 2013/5/24 15:21
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A VETERAN IS SOMEONE WHO AT ONE POINT WROTE A BLANK CHECK MADE PAYABLE TO THE UNITED STATES OF AMERICA FOR AN AMOUNT OF UP TO AND INCLUDING THEIR LIFE. |
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