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05-06-2012, 09:47 PM
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#41
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Name: kawi600
Title: got Coal for Christmas
Status: Not Here
Join Date: Jun 2008
Location: communist urban hell
Member`s Gallery
Posts: 861
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Should be near stock when this is done. only thing Im not sure about is the lower valve faces versus the swirl reliefs I asked Zach to grind in.
It was 380 with .020 gasket and .015 off the head.
__________________
Psalm 144
Psalm 37:10,11
Isaiah 65:20
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05-10-2012, 08:58 PM
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#42
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Name: kawi600
Title: got Coal for Christmas
Status: Not Here
Join Date: Jun 2008
Location: communist urban hell
Member`s Gallery
Posts: 861
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Just heard back from the shop, looks like either the cam timing isnt right or the head was milled too much. Cant even bar the engine over with the head on.
It will probably be a couple weeks now till I can get some idea how this thing performs. =(
__________________
Psalm 144
Psalm 37:10,11
Isaiah 65:20
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05-10-2012, 09:05 PM
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#43
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Name: DEZLFREK
Title: my licence plate says it
Status: Not Here
Join Date: Dec 2009
Location: sonoma,ca
Member`s Gallery
Posts: 4,569
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man thats a bummer.. hope you get it fugured out.. might have to go deaper with the valves or reliefs.. the math ended up not working on my motor also.. i had .090 in my last motor with the same cam and put .150 in these pistons with a .017 piston protrusion and also took .060 off the head so i had around .015 valve protrusion.. it turned over fine when i assembled the motor/head/cam but after my head gasket went all the intakes were hitting so thats why i had to go with a .020 head gasket.. just to make it fit/work..
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2k,cam,northeast diesel 12mm pump,big blue24 ,625's,block stiffener,pcs,4r100,spec rite tc, T$62/65/12 over a billet 80/96/1.10.
67 nova,l33 block,4.8,243s,csu 750,e85,475/87/1.0,ptc 3600 9.5 tc,t brake 400, tci front and 4 link, 9"spool,3.25,mt 275's= 9.34@145
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05-10-2012, 10:21 PM
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#44
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Name: madmikeismad
Title: So mad
Status: Not Here
Join Date: Dec 2009
Location: Newalla, OK
Member`s Gallery
Posts: 14,347
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Make sure the cam in in right, I had mine in 180 out and I couldn't bar it over. At least thats what I'm assuming since I pulled it and turned it and put her back in and it worked
__________________
Mike Hill
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05-11-2012, 06:32 AM
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#45
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Name: kawi600
Title: got Coal for Christmas
Status: Not Here
Join Date: Jun 2008
Location: communist urban hell
Member`s Gallery
Posts: 861
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yeah I emailed the shop last night and asked him to check timing. It could be keyed wrong, I dunno.
Its been running like crap for awhile, so it is possible.
I dont know how that happened with the valve protrusion if its not cam timing.. since the valvetrain is all hamilton and the piston protrusion was at .023 which is within stock spec.
Im guessing there was a miscommunication somewhere.
So if it is the head, I can recut the seats a little deeper for stock protrusion and feel safe again, lol. Just need to shim the springs.
__________________
Psalm 144
Psalm 37:10,11
Isaiah 65:20
Last edited by kawi600; 05-11-2012 at 06:34 AM.
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05-11-2012, 08:28 AM
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#46
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Name: kawi600
Title: got Coal for Christmas
Status: Not Here
Join Date: Jun 2008
Location: communist urban hell
Member`s Gallery
Posts: 861
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Starting to sound like there was some confusion with the valves, who knows. Anyhow its a good thing since zach has some updated valves, with dry lube coating on the stems to help when installers forget assy lube. Hes sending me a set overnight.
Id love to coat these pistons with ceramic tops and DLC on the skirts.. if I ever have them out. Worked real nice on my last bike build and I beat the snot out of that thing.
__________________
Psalm 144
Psalm 37:10,11
Isaiah 65:20
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05-11-2012, 08:33 AM
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#47
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Name: Lostnwalmart
Title: Too Much Time
Status: Not Here
Join Date: Jul 2006
Location: Tokyo Japan
Member`s Gallery
Posts: 8,970
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Forgot lube on the valves? thats like engine building 101
__________________
Ecorico scooter!!
-Cliff
Quote:
Originally Posted by Snedge
Anybody that would not haul a dinosaur for an orphanage is no friend of mine.
To some people it's all about money. Geez
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05-11-2012, 08:43 AM
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#48
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Name: kawi600
Title: got Coal for Christmas
Status: Not Here
Join Date: Jun 2008
Location: communist urban hell
Member`s Gallery
Posts: 861
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Quote:
Originally Posted by Lostnwalmart
Forgot lube on the valves? thats like engine building 101
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too true.
though how can you prove if it wasnt lubed or if the guide was too tight? easy to forget something. so zach eats up all the returns which costs him pretty bad id imagine. so a little prevention goes a long way.
__________________
Psalm 144
Psalm 37:10,11
Isaiah 65:20
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05-11-2012, 09:33 AM
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#49
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Name: getblown5.9
Title: Ceritified Kleenex Dealer
Status: Not Here
Join Date: Aug 2006
Location: Baltimore, MD
Member`s Gallery
Posts: 7,259
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check the gear on your crank...seen more than one of them now that have twisted on the crank and thrown crank vs cam timing way off.
__________________
ONE PIECE AT A TIME -02 Dodge Ram 2500-Because...Pull Truck
07 Dodge 3500 SRW Megacab Laramie- 5.9/Auto, 250,000 miles, built for longevity
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05-11-2012, 10:33 AM
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#50
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Name: kawi600
Title: got Coal for Christmas
Status: Not Here
Join Date: Jun 2008
Location: communist urban hell
Member`s Gallery
Posts: 861
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how easy is it to shear that dowel pin on the crank / gear? This things been 450hp or less and 3200 rpm max since I got it.
__________________
Psalm 144
Psalm 37:10,11
Isaiah 65:20
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05-16-2012, 10:36 AM
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#51
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Name: kawi600
Title: got Coal for Christmas
Status: Not Here
Join Date: Jun 2008
Location: communist urban hell
Member`s Gallery
Posts: 861
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Ok, latest is that the locating dowels were too small for the head and the valves were hitting the lip of the cylinders.
Shop has it all assembled but now hes told me the compression is exactly the same as before the swap at 380psi. I think stock is around 425-440 or so? Im building this for a DD / economy setup so I think compression is really important for this role.
Anyone else with the head that had the swirl reliefs done that could tell me what this did to your performance and economy versus stock?
Its gonna suck if this behaves just like it did before with the .020 gasket on there.
__________________
Psalm 144
Psalm 37:10,11
Isaiah 65:20
Last edited by kawi600; 05-16-2012 at 10:38 AM.
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05-16-2012, 10:45 AM
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#52
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Name: Lostnwalmart
Title: Too Much Time
Status: Not Here
Join Date: Jul 2006
Location: Tokyo Japan
Member`s Gallery
Posts: 8,970
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Mine is getting 19 ish mpg with pretty heavy fueling but it's also a scsb (chopped 250 so not a huge difference in weight)
__________________
Ecorico scooter!!
-Cliff
Quote:
Originally Posted by Snedge
Anybody that would not haul a dinosaur for an orphanage is no friend of mine.
To some people it's all about money. Geez
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Last edited by Lostnwalmart; 05-16-2012 at 10:46 AM.
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05-16-2012, 10:46 AM
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#53
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Name: kawi600
Title: got Coal for Christmas
Status: Not Here
Join Date: Jun 2008
Location: communist urban hell
Member`s Gallery
Posts: 861
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What sort of fueling and air are you running? Im guessing that 19mpg is all highway? Hand-calculated or overhead?
__________________
Psalm 144
Psalm 37:10,11
Isaiah 65:20
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05-16-2012, 10:49 AM
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#54
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Name: Lostnwalmart
Title: Too Much Time
Status: Not Here
Join Date: Jul 2006
Location: Tokyo Japan
Member`s Gallery
Posts: 8,970
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Hand calculated 5x20's maxed pump and 181's with a 75mm single. This is at 75 ish mph. I'll be getting a full tank trip this time for better results
__________________
Ecorico scooter!!
-Cliff
Quote:
Originally Posted by Snedge
Anybody that would not haul a dinosaur for an orphanage is no friend of mine.
To some people it's all about money. Geez
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05-16-2012, 11:04 AM
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#55
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Name: kawi600
Title: got Coal for Christmas
Status: Not Here
Join Date: Jun 2008
Location: communist urban hell
Member`s Gallery
Posts: 861
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D'oh.. just missed that you put turbo info in there.
Hmm, well seeing that I do a lot of city driving (unfortunately) Im going to hold out and see what Zach says about compression.
__________________
Psalm 144
Psalm 37:10,11
Isaiah 65:20
Last edited by kawi600; 05-16-2012 at 11:09 AM.
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05-16-2012, 03:24 PM
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#56
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Name: Lostnwalmart
Title: Too Much Time
Status: Not Here
Join Date: Jul 2006
Location: Tokyo Japan
Member`s Gallery
Posts: 8,970
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Yup, I came up and harassed you for the 30* intake, and you did everything but the eyebrows on the valves.
__________________
Ecorico scooter!!
-Cliff
Quote:
Originally Posted by Snedge
Anybody that would not haul a dinosaur for an orphanage is no friend of mine.
To some people it's all about money. Geez
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05-16-2012, 05:20 PM
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#57
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Name: kawi600
Title: got Coal for Christmas
Status: Not Here
Join Date: Jun 2008
Location: communist urban hell
Member`s Gallery
Posts: 861
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Hmmm.. so you dont have the reliefs cut on the intakes? Just the 30* valve cut?
Who knows what it all does, lots going on in there. I may take Zach's advice and run it for a couple months to see what it does.
Truck has been down for like 6 weeks now and riding season is here. Need wheels to haul my dirtbikes.
Going to be looking into a supercharger later on anyhow. might work well with that setup for all I know.
__________________
Psalm 144
Psalm 37:10,11
Isaiah 65:20
Last edited by kawi600; 05-16-2012 at 05:27 PM.
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05-20-2012, 04:46 PM
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#58
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Name: PASSENGER
Title: Bells and Whistles
Status: Not Here
Join Date: Jun 2007
Location: Abbotsford, BC
Member`s Gallery
Posts: 267
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We've been screwing around with one of these heads, here are our results so far with the out of the box numbers and ported with the intake manifold removed. This is with the stock deck height and the supplied Hamilton valves. Work in progress.
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05-20-2012, 04:52 PM
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#59
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Name: oldestof11
Title: Drag racer
Status: Not Here
Join Date: Jul 2007
Location: Dixon, IL
Member`s Gallery
Posts: 9,084
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Just a question, why do you measure the intake "flow" with vacuum??? Why not at a set pressure like what we see in our engines?
__________________
Jon
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05-20-2012, 05:03 PM
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#60
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Name: SHughes
Title: Too much is never enough!
Status: Not Here
Join Date: Jan 2008
Location: Bellevue, NE
Member`s Gallery
Posts: 9,272
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Quote:
Originally Posted by oldestof11
Just a question, why do you measure the intake "flow" with vacuum??? Why not at a set pressure like what we see in our engines?
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That's how 99.99999% of flow benches operate. The cost of a positive pressure flow bench is both astronomical and very hard to come by. I don't even think manufactures have them. There are some home brewed ones out there though, that are terribly inaccurate/inconsistent.
__________________
Quote:
Originally Posted by Joesixpack
That statement just reduced the collective IQ of the entire forum.
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