12 valve question
#1
Registered User
Thread Starter
Join Date: Jan 2003
Location: Ab. Canada
Posts: 318
Likes: 0
Received 0 Likes
on
0 Posts
12 valve question
My nephew just picked up a '98 12 valve. We don't really have any history on it but it seems like a solid truck. My question is how much power they made stock, this one seems like it pulls pretty good, nice puff of black if you lay into it off boost. It will make almost 30 psi boost, feels like it has about the same power as my 24 valve with the comp on 2, maybe a little less.
Does it sound like it's be turned up a bit? I don't really have a point of refrence since the last 12 valve I drove was '92 so I don't know what it should pull like.
Does it sound like it's be turned up a bit? I don't really have a point of refrence since the last 12 valve I drove was '92 so I don't know what it should pull like.
Last edited by DRD; 06-08-2009 at 11:29 PM. Reason: spelling
#2
The Guru
Join Date: Jan 2004
Location: Airdrie Canada
Posts: 6,589
Likes: 0
Received 0 Likes
on
0 Posts
Is it an auto or stick truck? Nice buy, the 98 are the year to buy for p pump truck, but they are all good. Have you looked at the tag model # on the injection pump? Where do you live?
#3
Chapter President
Sounds like its been turned up a tad.. Probably the plate has been slid up with some starwheel adjustments. Stock mine only made about 28 psi with the wastegate blocked.
Nice grab!
Nice grab!
#4
Registered User
Thread Starter
Join Date: Jan 2003
Location: Ab. Canada
Posts: 318
Likes: 0
Received 0 Likes
on
0 Posts
It's got a 5 speed. Truck has pretty high Km, around 300K. I think he got it for 6G or so. It's got training wheels like mine but he wanted something to yard his TT around so the dually is nice for that. I guess I'll have to do some reading in the 12 valve forums. The last 12 valve Cummins I worked on was driving a Mycom and had a carb.
MH, I'm up by Innisfail
MH, I'm up by Innisfail
#5
Registered User
Join Date: Aug 2005
Location: Airdrie, Alberta
Posts: 7,780
Likes: 0
Received 0 Likes
on
0 Posts
215hp stock. Definitely sounds like it is turned up, boost was about 20 psi or so. Probably has the wastegate blocked off, or maybe a boost elbow. Should be able to tell on the AFC.
Thread
Thread Starter
Forum
Replies
Last Post
1320
12 Valve Engine and Drivetrain
6
05-17-2003 03:28 PM
phildog
3rd Gen Engine and Drivetrain -> 2003-2007
2
04-02-2003 05:44 AM