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| The Turbo Super Duty Build. (Page 31/63) |
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Toddster
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MAY 12, 05:59 PM
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| quote | Originally posted by FastIndyFiero:


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I see custom made gaskets in your future!
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Dennis LaGrua
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MAY 12, 08:03 PM
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Let me get this right. A SD four with a turbo and nitrous. That's one bad combination. I hope that you are just using the nitrous off the line until the turbo spools up. I believe that it will be very difficult to tune for boost and N20 working for the whole 1/4 mile. ------------------ 87GT 3.4 Turbo- 0-60 5.2 seconds -Best Engine Controls, ECM goodies, Chip re-programming & odd electronics stuff
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p8ntman442
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MAY 12, 08:20 PM
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| quote | Originally posted by FastIndyFiero:


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Machine the head and the intake flat, and then use anerobic sealer. Expensive the first time, but after each R&R and not having to buy more custom gaskets, you will make out in the end.
Unless your head ports match the gasket, if thats the case your ****ed.
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FastIndyFiero
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MAY 13, 12:45 AM
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| quote | Originally posted by Dennis LaGrua:
Let me get this right. A SD four with a turbo and nitrous. That's one bad combination. I hope that you are just using the nitrous off the line until the turbo spools up. I believe that it will be very difficult to tune for boost and N20 working for the whole 1/4 mile.
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I'm going to tune with the turbo first, then start working up from smaller nitrous shots. I don't think it will be a problem.
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xlr2004
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MAY 13, 11:18 AM
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I've been monitoring this for quite some time, as I've got a couple SD-4 projects (have been on-going for....let's say MUCH longer than you have..but have never got things running quite right due to misc. issues (i.e. my mistakes). Appreciate you sharing all the info, and may be able to give you a lead on your gasket issue. I've got an aluminum SD-4 head with the Holley TBI intake (made for the aluminum high port head, not stock head). The gasket they include looks like it fit's your head (bolt holes around the center coolant port are very close to the #2, #3 intake runners. Looks like this is what you need. I had purchased a replacement gasket (10+ years ago) since mine cracked. I ordered p/n 301-127 from Holley (has 1238 pressed on gasket), can't tell from your picture if it says 1238-1, or 1258-1. Don't know if they still sell it, but may be worth a try. I can send a pic if you want. ------------------ '84 Red SE 4-spd, 2.7 TBI SD4 (x-cept block) '84 Indy project, soon to have full SD4 '84 SE, auto, parts bucket
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FastIndyFiero
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MAY 19, 04:35 PM
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| quote | Originally posted by xlr2004:
I've been monitoring this for quite some time, as I've got a couple SD-4 projects (have been on-going for....let's say MUCH longer than you have..but have never got things running quite right due to misc. issues (i.e. my mistakes). Appreciate you sharing all the info, and may be able to give you a lead on your gasket issue. I've got an aluminum SD-4 head with the Holley TBI intake (made for the aluminum high port head, not stock head). The gasket they include looks like it fit's your head (bolt holes around the center coolant port are very close to the #2, #3 intake runners. Looks like this is what you need. I had purchased a replacement gasket (10+ years ago) since mine cracked. I ordered p/n 301-127 from Holley (has 1238 pressed on gasket), can't tell from your picture if it says 1238-1, or 1258-1. Don't know if they still sell it, but may be worth a try. I can send a pic if you want.
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Mine says 1238-1. It's a Felpro gasket PN 1441. I looked up the Holley gasket on Summit Racing, and it wasn't listed. I'll try Holley's website next.
I'm also still working on getting someone to make those flanges. SPD Exhaust never got back to me after they had me send in my model for a quote, but I may have found a place that will do it cheaper anyway.
Nate "obviously still learning" Engel
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p8ntman442
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MAY 24, 12:11 PM
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xlr2004
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MAY 25, 11:19 AM
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Sorry if this is a repeat......not sure what happened the first time I typed this ???
I have another p/n written down for a Fel-Pro gasket through Jeg's....may be the same as what you have. It's p/n 375-1238-1 (may just be the Jeg's p/n for the gasket)????
Also, here's some alternate p/n's from a Pontiac Motorsports Super Duty Parts (4, 6 & 8 Cyl) list I have: p/n F0 5892-1 Vanderley/Huffaker For Cyl. Head p/n 10049801 (S.D. Aluminum, Equal Port Intake) p/n F0 5892 Vanderley/Huffaker For Cyl. Head p/n 10045437 (S.D. Aluminum, Std Port Intake).....what I have
If there's some interest here for the S.D parts list, I can probably scan them into .pdf & post (if it's possible). It's pretty old at this point in time, but has lots of GM & non-GM p/n's (& Vendor's) for all 4, 6 & 8-cyl Pontiac S.D Parts.
Mark------------------ '84 Red SE 4-spd, 2.7 TBI SD4 (x-cept block) '84 Indy project, soon to have full SD4 '84 SE, auto, parts bucket
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FastIndyFiero
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MAY 26, 09:54 AM
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| quote | Originally posted by xlr2004:
Sorry if this is a repeat......not sure what happened the first time I typed this ???
I have another p/n written down for a Fel-Pro gasket through Jeg's....may be the same as what you have. It's p/n 375-1238-1 (may just be the Jeg's p/n for the gasket)????
Also, here's some alternate p/n's from a Pontiac Motorsports Super Duty Parts (4, 6 & 8 Cyl) list I have: p/n F0 5892-1 Vanderley/Huffaker For Cyl. Head p/n 10049801 (S.D. Aluminum, Equal Port Intake) p/n F0 5892 Vanderley/Huffaker For Cyl. Head p/n 10045437 (S.D. Aluminum, Std Port Intake).....what I have
If there's some interest here for the S.D parts list, I can probably scan them into .pdf & post (if it's possible). It's pretty old at this point in time, but has lots of GM & non-GM p/n's (& Vendor's) for all 4, 6 & 8-cyl Pontiac S.D Parts.
Mark
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I'm sure plenty of people here are interested if you could put it in a .pdf or even just jpegs. On that subject, what's a good free file hosting site?
I have some scans I'm going to post up tonight, good info.
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FastIndyFiero
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MAY 27, 12:55 PM
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Here's scans of the original build sheet, hand dated 8/18/83 that sat in my SD Build kit box (10031328) for more than twenty years before I bought it. The original is in very bad condition, with lots of tears, it's almost ripped in half. I'm amazed the scans came out this well!

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