1999gmc
Active Member
My daughters 83 Jimmy has a turbo on it, and I feel like I noticed a difference when I did the FTB and Walbro lift pump on my 6.5L. So I was wondering if anyone has done it on a 6.2L with a turbo, and if it was worth it?
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Feed the beast on a 6.2L
- Thread starter 1999gmc
- Start date
tanman_2006
Just a farm kid...
Well that truck has a different fuel filter and a mechanical pump. Iirc the mechanical pumps take a whole different nose cone or removing the current one from from the pump and getting it machined out.
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1999gmc
Active Member
The truck has an aftermarket turbo so the mechanical pump was replaced with electric so the turbo drain could go there. But, that was what I was wondering was if the fittings at the pump are the same as the 6.5L that I got from Leroy.
tanman_2006
Just a farm kid...
It has a mechanical injection pump, the ip inlet is different
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1999gmc
Active Member
Yeah, I knew it had a mechanical injection pump, I thought you were saying a mechanical lift pump.
1999gmc
Active Member
Sorry man, just noticed you had "mechanical pump with whole different nose cone". Didn't catch that the first time I read it at work. So I'm thinkin then not too many people have done it, or might not even benefit from it.
You would get more out of a 6.5 IP put on in place of the 6.2 IP. Both DB2's of course. A Walbro is a good upgrade without the FTB and may be the reason you noticed a difference. Your turbo and/or precups will limit what you can get out of the '83. You could always use an adapter just before the IP to use bigger hose without modding the DB2. Length of small pipe has an effect vs. a big pipe with just one small restriction.
I don't see the need for the FTB on a 6.2 DB2 IP. 6.5 IP maybe.
I don't see the need for the FTB on a 6.2 DB2 IP. 6.5 IP maybe.
1999gmc
Active Member
Ok. Thanks. When I got the truck the electric pump that was on it was dead. I found an Airtex universal diesel pump, I think it was an E8153, said it was 14 PSI and 35 GPH. So I put that on. And 1 yr and a month later it took a crap. They warrantied it for me but if it keeps failing, maybe I'll try a Walbro on it.