Outback Jack 6,352 Posted October 12, 2017 Depends what motor valvey, if you dont have a dizzy its the only 'physical' way to adjust timing without computer getting involved.I have been told that the sohc 4L is only good for 2 degrees on the dizzy anyway in stock form. Mines standard. Unknown how far is too far on a barra.Gotta be careful.. Only exception was the VCT AU. That can adjust its own valve to cam timing in higher rpm. Jack. Sent from my GT-S7583T using Tapatalk 2 Bigflop and Valvebouncer reacted to this Share this post Link to post Share on other sites
Drew442 67 Posted October 12, 2017 I'm in the middle of building an au vct motor. They adjust 6 degrees from memory. It'll have a BW 66mm turbo.I'll let you guys know how that goes.Sent from my MI 5 using Tapatalk 5 Valvebouncer, Outback Jack, matt_lamb_160 and 2 others reacted to this Share this post Link to post Share on other sites
Thom 6,642 Posted October 13, 2017 Has anyone experimented with an adjustable cam gear on a standard cam? Were there any gains from advancing or retarding it? I'm guessing there would be gains and losses at certain rpm points but I'm curious across a decent range of rpm.I had one on my xh it had an ea cam so it wasn't stock but still a factory cam playing around with it on the dyno ended up with it 2 degrees retarded as the area under the curve wasn't reduced but it gained 8 kw at the tyres 3 degrees started to loose bottom end torque 2 Valvebouncer and Outback Jack reacted to this Share this post Link to post Share on other sites
Valvebouncer 2,389 Posted October 13, 2017 That's a decent gain, some cams don't give you that much and a vernier cam gear is cheaper too! Share this post Link to post Share on other sites
Drew442 67 Posted October 13, 2017 That's a decent gain, some cams don't give you that much and a vernier cam gear is cheaper too!That's why every car built today has VCT.Sent from my MI 5 using Tapatalk 3 Valvebouncer, Thom and Outback Jack reacted to this Share this post Link to post Share on other sites
SPArKy_Dave 8,831 Posted October 13, 2017 12 hours ago, Valvebouncer said: As previously stated Dave, they aren't necessary and I'll do the job properly so the head doesn't have to come off again. If decent bolts were good enough for ford the get over 300kw out of a Barra and last 700,000km in a taxi then revised well made bolts are good enough for my ute. What kind of company that has 2 subsidiaries, one that can make bolts and one that attempts to? No thanks, I'll stick with blackxt suggestion for mace engineering, the more people I ask the better they sound. Yeah, it's so hard to get decent quality parts these days - so much cheap rubbish out there. Whether they be tierod ends, ball joints, suspension bushes, gaskets, or head bolts... I'd definitely be interested to see the yield specs on the Mace bolts, and how they compare with stock, and ARP studs. I read an article where someone did a yield test comparison on a bunch of different LS1 headbolts/Studs etc. It was a very interesting read. Share this post Link to post Share on other sites
Bigflop 288 Posted October 14, 2017 Any suggestions on rebuild kits? Acl seem like a pretty reputable breed thats been around for some time.Sent from my SM-G935F using Tapatalk Share this post Link to post Share on other sites
Valvebouncer 2,389 Posted October 14, 2017 Permaseal for mls head gasket. Their fit and quality of all other gaskets seems pretty good too Share this post Link to post Share on other sites
Bigflop 288 Posted October 15, 2017 Already have a head gasket. Went au steel. Sent from my SM-G935F using Tapatalk Share this post Link to post Share on other sites
Drew442 67 Posted October 15, 2017 Yeah, it's so hard to get decent quality parts these days - so much cheap rubbish out there. Whether they be tierod ends, ball joints, suspension bushes, gaskets, or head bolts... I'd definitely be interested to see the yield specs on the Mace bolts, and how they compare with stock, and ARP studs. I read an article where someone did a yield test comparison on a bunch of different LS1 headbolts/Studs etc. It was a very interesting read. Someone wrote it in response to Matt from sloppy mechanics reusing torque to yield head bolts on his LS motors.I think the reused were better than new items both oem and aftermarket.Sent from my MI 5 using Tapatalk Share this post Link to post Share on other sites
Bigflop 288 Posted October 17, 2017 Nason is rubbish. Ive been told to stear clear of there stuff. Just remembered that lolSent from my SM-G935F using Tapatalk 1 Valvebouncer reacted to this Share this post Link to post Share on other sites
Bigflop 288 Posted October 17, 2017 Will set up my block and crank in my shed this weekend and go from there. Good mate is guiding me through the engine build.Sent from my SM-G935F using Tapatalk 2 deankxf and Valvebouncer reacted to this Share this post Link to post Share on other sites
Drew442 67 Posted October 17, 2017 I've got nason head bolts and timing set here for my turbo build. I'll let you know how they go.Sent from my MI 5 using Tapatalk 1 Bigflop reacted to this Share this post Link to post Share on other sites
Bigflop 288 Posted October 18, 2017 I've got nason head bolts and timing set here for my turbo build. I'll let you know how they go.Sent from my MI 5 using TapatalkOk no worries, dont mean to be negative mate just thought id share what i was told ect! Mind you im sure others have used some of there gear and its been fine. You building ohc or xflow?Sent from my SM-G935F using Tapatalk Share this post Link to post Share on other sites
Drew442 67 Posted October 18, 2017 Ohc. Ef bottom end, vct top. Sent from my MI 5 using Tapatalk 1 Bigflop reacted to this Share this post Link to post Share on other sites
Bigflop 288 Posted October 18, 2017 Pulled my block out of storage. Will need to be cleaned again ect. Crank also... or ill pull out the el crank.Sent from my SM-G935F using Tapatalk Share this post Link to post Share on other sites
Bigflop 288 Posted October 18, 2017 Ohc. Ef bottom end, vct top. Sent from my MI 5 using TapatalkYou rebuilding the bottom end? Sent from my SM-G935F using Tapatalk Share this post Link to post Share on other sites
Drew442 67 Posted October 18, 2017 10 hours ago, Bigflop said: You rebuilding the bottom end? Sent from my SM-G935F using Tapatalk Yeah. I have a 94da and a 96da block here. We pulled the 94da down last weekend and the head mating surface doesn't look that good. We'll pull down the 96da on the weekend and see what it looks like. I'm just using ACL duraglide bearings but i've got chrome rings. Everything else stock EF. 1 Bigflop reacted to this Share this post Link to post Share on other sites
Bigflop 288 Posted October 19, 2017 Yea thats rough hay. Im in the middle of sourcing a clutch for my ranger lately so unfortunately my block and crank will sit for another couple weeks . Yea i think ill more than likely use ACL gear.Sent from my SM-G935F using Tapatalk 1 blackxt reacted to this Share this post Link to post Share on other sites