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if its been tuned, most likely the shift points are not right. It has to meet 2 criteria, speed and rpm. Unless thy are both met, it just hangs on. I had this problem twice with same tuner, which was never sorted, Im using someone else now. Another thing I found during my research was the 4l60s...

Yeah, its was mildly disappointing when both said "don't bother, fit a cam". Rather than working with what you have and budget, I kind of felt like i was not spending enough coin on mods to warrant their time. Especially the mob i had previously been to for mafless tunes.

Hey guys, Ive gone ahead and purchased a set of mace 1.9 rockers and PAC 1219 springs, after ringing a couple of well known shops in town, they advised not to fit the rockers and do a cam, and stating the rocker geometry will be out. Well I'm a stubborn bastard, and i don't want to waste $400...

nice, throw money at some mace engineering bolt on stuff. youll keep up with stock ls1's in no time.

Very clean bud. Top Example.

PWR346 submitted a new Showcase Item: 2004 Holden Commodore Read more about this showcase item here...

Couple of photos here, Ones after the wheels were fitted, but doesn't do it justice And one not long after I got it.

Model: 2004 VYII SS Colour: White Interior: Black Leather Suspension: King SSL and KYB Front Struts Wheels: 20in SSW's with cheapo condoms. 67,000Km Engine: Ported Throttle Body with Radiator Bypass 1 3/4 Ceramic Pacemakers, Twin 3in Xforce Hi Torque Mafless and OTR 232rwkw Trans: Stock with...

That would be A- max lift. I just calculated in on Rocker Arm Lift Change with Ratio Variations , thought it might be somewhat correct. I checked it again and it came up with .597. But its still under .600, im assuming that would be good. i'm just wondering if doing more work on the rocker is...

hey guys, ive already asked mace but they haven't gotten around to it yet but, i need to know if the mace 1.9 ratio rockers will work with comp cams xr273hr and a set of pac racing 1219's. The cam is only small lift, and have calculated max lift to be .59/.594 with 1.9 rockers, and the...

Hey nice products guys, Im interested in the ls1 1.9 ratio rockers, but im also looking at adding a cam. If a cam is designed for high ratio rockers, will they be ok to use. The cam is Comp cams XR273HR, it only has a max lift of .53/.534, and states it likes high ratio rockers. I have...