http://www.thegalantcenter.org/showt...ngine-failures
thoughts?
ooo and if someone knows where to look for a running g75: hit me up
http://www.thegalantcenter.org/showt...ngine-failures
thoughts?
ooo and if someone knows where to look for a running g75: hit me up
This is the first I have heard about this. I can say that when I dissembled mine the crank bearings had some scuff marks but nothing I would call worthy of failure. the only thing I have heard of with the 74 blowing up is a few rods going but as you know in our hobby that can be from just beating on the motor to much.
Never know do you, could be that someone can't tune, or can't use a torque wrench, or that stuck a 200 shot of nitrous in the weekend prior "just to see"
DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!
yes but i think its safe to say that dsm headbolts that brent and i have tried are worth using or even the arp hardware should be given a chance.
75 crank is not drilled the same as 74 crank. As far as fasteners, 4 bolt has different requirements so maybe the only option is ARP. Mitsu went cheap and "easy" in the modern years. Most manufacturers had already gone that route. The good old 6g72 is built tough from the junkyard.
Last edited by Ondonti; 01-18-2013 at 11:15 PM.
Brent GREAT DEPRESSION RACING 1992 Duster 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56
yep. like the guy in the link says, he claimes the mains actually stretched. if they did stretch over time then there is no denying that a stronger fastener is needed. arp is not too pricy and they work great.
I am with RW that there is probably a little bit of stupid involved in what might be assumed to be near stock motors having crankshaft problems... Like I ran a bit low on oil while spraying nitrous with no fuel enrichment and good thing my high compression piston or pencil thin rod didn't fail first. :P
The difference in drilling of crankshafts is something I worry about for high performance applications. The 74 crank is cross drilled, the 75 is not.
Brent GREAT DEPRESSION RACING 1992 Duster 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56
Stock 6G75 motors, fully forged 6G75 motors all have failed with the same symptoms...stretched main bolts...about 15 thou.Originally Posted by Ondonti
Oh well...
(you can lead a horse to water but you can't make him drink)
cya
wow did you join here just to post that lol still with ondonti here lol
yep...when someone is a dickhead I enjoy telling them to their face.
why are you getting so butt hurt? Do you even know who he is?
He was just poking fun at the whole 24valve sohc community because it seems ALOT of them cut corners on fueling/timing or crazy high intake temps from their superchargers and blow their block apart at 300whp and then go on to claim that the blocks require forged everything before you can push it... so much misinformation out there. Yeah maybe the the main bolts stretch over time, thats why i posted it here because we have a couple of people messing with the 3.5/3.8 and we like to do things the right way and make real power.
Not to get into an internet war here but you do realize telling someone something on a computer isn't telling them to their face?
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1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
you cant not think something else was involved.. just go on club 3g and look at how misimformed 90% of them are.
but, if they measured the mains and they are longer than they should be.. regaurdless of what caused it, they should be replaced with something better befote it happens. arp and dsm headbolts sound pretty good when you know your crank is going to wiggle around without them.
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