my ride vt ecotec

[vt3.8lt]

286˚ in duration adv 290˚ ex duration adv 230˚ in duration @50 237˚ ex duration @50 .561" in lift @50 .572"ex lift @50 114˚ lsa specs for the cam has a bit more lift is advertised with a 1.6ratio rocker i went up to a 1.7 puts me at just over 600 thou lift on ex and 597ish on the in

[vlad01]

Thats a fair sized cam

[Holden202T]

yeah thats pretty big, no wonder it has no vaccum at idle

will probably want to idle a fair bit richer than 14.7 too!

what is your idle speed set to ?

[vlad01]

im thinking too big as the heads will never flow for a cam that big. But being turbo the rules might be different?

[Holden202T]

yeah might be wasted in the top end if everything can't keep up, but will certainly improve the mid range!

question is, what size converter do you have in it ?

[vt3.8lt]

yeah shes pretty big and i thought it would be the struggle of my idle issue ill work on the idle afr and see if i can richen it up a bit and see if it helps the heads have been ported and had chrome turbo valve seats installed and 2mm bigger inlet valves put in it and 30 thou lager exhaust vales in it in stainless biggest i could squeeze in there without being to close together

and she been converted to manual

[Dylan]

Manual nice. I've tuned a few V8's with big SFT cams similair specs to this but LSA's around 108 degree's. They do like idle AFR's around 14 or leaner which is different to most sizeable hydraulic type cams. But on these solids I've done they loved them leaner. But looking at the plugs hey were spot on. I think it's due to the overlap they need them leaner to minimise the raw fuel ut the exhaust and save on plug life.

[vlad01]

I would love a big solid roller cam with roller rockers and titanium valve train. Mmmmmm RPMs

[vt3.8lt]

Lol cheers guys yeah gotta work on the idle afr a bit as well as the full tune just did a throw together very concervative to seat the rings gonna look at changine it over to e85 on the weekend in preparation for getting it onto the dyno just so i dont have to start from scratch n stuff less money on the dyno etc

Mmmm that would be amazin vlad combined with a billet crank bring on the rpms

[vt3.8lt]

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Dug up a couple of photos of the vlaves i got put in