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Dodge Competition and Performance General Dodge Competition and Performance Discussion |
07-12-2019, 05:45 AM
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#1
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Name: tinkertoy
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: eubank ky
Member`s Gallery
Posts: 436
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Cams
I was running a Schied diesel street cam in my 01 24v a had problems eating lobes off so I switched back to a late 12v stock cam! And last time I had it out I noticed number 6 lobe was warned some, so I switched oils to a racing oil for more zinc to see if that helped with heavier valve springs.
I will be pulling cam out to look at it when I go back ppump again and was wondering if there’s a cast cam that maybe around same specs as Schied cam?
And I can’t go anything bigger because protrusion is not stock! The Schied cam was really close on valve to piston clearance.
Would I be as will off to run a stock cam or aftermarket?
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07-12-2019, 07:48 AM
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#2
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Name: MufflerBearing
Title: Too Much Time
Status: Not Here
Join Date: Oct 2008
Location: Boyertown, PA
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Posts: 1,188
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What for Springs are you running? this doesn't sound normal.
__________________
17' Mega 3500 W/Aisin, 2nd gen swap with billet S468
87' 4runner LS, NV4500, 1 Tons.
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07-12-2019, 11:57 AM
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#3
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Name: tinkertoy
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: eubank ky
Member`s Gallery
Posts: 436
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The springs are max spools that I got from pure diesel power over 10 years ago! They don’t make them anymore, they are 105 pds at 140 height.
I had valve job done and fire ringed at the time I installed them. U think the head may not have been done right?
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07-12-2019, 01:28 PM
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#4
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Name: Big Blue24
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Jan 2008
Location: Cedar City, UT
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Posts: 6,310
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It sounds like the spring pressure might be a little high for a street truck and that's why it's killing cams. There are steel, tool steel, and dlc treated cam and tappet combinations that will hold up, but then you'll fight wearing out the cam bores in the block.
If you're getting 20k miles or so on a reground stock cam, you might be on the verge where good engine oil, good crowned aftermarket tappets, and a fresh cam will last with the current springs. To really know, you'd want to pull a spring or two, check the spring rate and seat pressure at installed height and see where the total open load ends up. We've gotten away with 500+# over the nose on race trucks with premium parts, but I'd never try it on a street truck.
__________________
95' 2wd Junker Drag Truck
1502 HP Fuel-Only 12mm P7100 Pump
SXE 472 over GTX55 116mm
OEM 12v Block
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07-12-2019, 05:50 PM
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#5
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Name: tinkertoy
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: eubank ky
Member`s Gallery
Posts: 436
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What springs would be ideal?
And can u take injectors out and pressurize the cylinder like a gas I done that once?
The truck has maybe put 40k miles on seens running them!
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07-12-2019, 06:47 PM
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#6
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Name: TheHammer
Title: broke
Status: Not Here
Join Date: May 2012
Location: juneau wi
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Posts: 738
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Quote:
Originally Posted by tinkertoy
What springs would be ideal?
And can u take injectors out and pressurize the cylinder like a gas I done that once?
The truck has maybe put 40k miles on seens running them!
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While in the truck I put the cylinder to tdc, remove injectors, rockers n bridges, then utilize this nice compressor that can be commonly found with a little google search. The spring I use is a popular choice in the industry, I just get them from the supplier. Some list it as a 105lb or 110lb. The last set I installed, on the seat they were all right around 100lbs.
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07-12-2019, 07:23 PM
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#7
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Name: Rich dzl
Title: 12v guru
Status: Not Here
Join Date: Mar 2011
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Posts: 741
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Cummins 60lb springs would work fine at that level
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07-12-2019, 09:36 PM
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#8
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Name: tinkertoy
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: eubank ky
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Posts: 436
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Pump is set to turn 4300 and fuels to 4000 and not going over 800 hp!
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07-13-2019, 06:21 AM
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#9
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Name: MufflerBearing
Title: Too Much Time
Status: Not Here
Join Date: Oct 2008
Location: Boyertown, PA
Member`s Gallery
Posts: 1,188
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Quote:
Originally Posted by tinkertoy
Pump is set to turn 4300 and fuels to 4000 and not going over 800 hp!
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Yes, get those springs out. Call some vendors here, they will get you exactly what you need. Hope you get it figured out.
Sent from my SAMSUNG-SM-G891A using Tapatalk
__________________
17' Mega 3500 W/Aisin, 2nd gen swap with billet S468
87' 4runner LS, NV4500, 1 Tons.
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07-15-2019, 04:58 PM
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#10
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Name: tinkertoy
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: eubank ky
Member`s Gallery
Posts: 436
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Ok so I’ve called around and everyone says theses specs on springs is what there springs are! They told me a 60# 12v spring was about the same just less valves to open. The only springs I found was Industerial that was 95#, and most say that it probably hurt my tappeds. Most say u need to run zinc to prevent this problem. I just don’t want to have to change taps that is a pain!
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07-15-2019, 09:07 PM
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#11
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Name: PRINCETON_JAKE
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Princeton Minnesota
Member`s Gallery
Posts: 1,125
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I have those same springs in my 2006 with a reground cam. It pushes 8-900hp when turned up and I’ve got 42,000 miles.
__________________
silver 2006 ram 2500 4x4, crew cab short box, 48RE auto with "stuff" done, 5.9 with more "stuff" done
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07-16-2019, 02:18 PM
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#12
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Name: Muddin_dude06
Title: ...
Status: Not Here
Join Date: Sep 2007
Location: Chandler OK
Member`s Gallery
Posts: 2,541
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Have you not changed tappets after the Scheid cam wiped out a lobe? What tappets are you running?
__________________
'96 2500 4x4 5sp. 3” Full Long arm lift w/35's
ValAir DD Clutch w/ Input
DFI 5x.012’s, O-ringed, 625’s
Hamilton 178/208, pushrods, PDD street springs, S362sxe/.7WG
‘12 LML crew cab swb 4x4 RC 3.5” lift with 33’s
Anarchy tune
5” exhaust w/ Jones 5050XL
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07-16-2019, 03:57 PM
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#13
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Name: tinkertoy
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: eubank ky
Member`s Gallery
Posts: 436
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No I haven’t I just threw another cam in, I think I will change them tho because it probably did damage to them! I didn’t want to fool with them but I may just take engine out because I’m rebuilding my clutch anyway and changing pump, turbo set up!
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07-16-2019, 04:22 PM
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#14
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Name: tinkertoy
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: eubank ky
Member`s Gallery
Posts: 436
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I’m thinking running Hamilton cast common tappets and common rail aftermarket cam.
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