ric_vr6 0 Posted February 23, 2008 Report Share Posted February 23, 2008 My stainless 6-2-1 manifold came today so within in 4 hours id fit it. However on puting the car back together its now not running right! It judders and holds back under 2000rpm.Iv tried unplugging the air sensor, still the same.Iv taken it out for a long run after fitting, no joy there.I took the throttle body off and cleaned the shite out of it.Could it be the leads/plugs?Could it be the cat?The car was fine before i changed the manifolds over now its poorly. Link to post Share on other sites
ric_vr6 0 Posted February 24, 2008 Author Report Share Posted February 24, 2008 Ok today i went and thrashed it cold and the problem had gone, however when the car warmed up it started again.Could this be the cat ar the exhaust?Please help its doin my head in.ThanksRic Link to post Share on other sites
OEM+ 1 Posted February 29, 2008 Report Share Posted February 29, 2008 hi i have six into one an it puts alot of heat out under the throtle boddie an around the leads as stainless dont dispurse the heat as well mild steel, i heat wrapped mine an redrilled the standard heat sheild to fit an dont seem to get any problems, although my back three leads do look like they are starting to melt abit but it my be worth a try Link to post Share on other sites
lindavr6 0 Posted March 21, 2008 Report Share Posted March 21, 2008 Hi mate Iam having the same problem but I have not changed the manifold. have you sorted your problem out yet and can you help me out. Link to post Share on other sites
ric_vr6 0 Posted March 27, 2008 Author Report Share Posted March 27, 2008 I heat wrapped the manifiold really well and made another heat sheald for the manifold. i changed the plugs and leads for some kn racing leads and this solved the problem.Hope this helps.Ric Link to post Share on other sites
Samson 0 Posted March 27, 2008 Report Share Posted March 27, 2008 I would instantly say that this has something to do with airflow, without looking at it.If your car started having these issues ONLY after you fitted the new manifold then that would have to be what has caused it. Does it need to be mapped to take into account the new mani? Link to post Share on other sites
VR6Pete 1,455 Posted March 27, 2008 Report Share Posted March 27, 2008 never had any heat issues with my raceland. but mine is wrapped and got heat shield on too. it wont need to be re-mapped with the manifold...check everything that you have disturbed.... did you remove the leads? could just be not on right. but the VR does generate some heat, and i instantly noticed the diff when i replaced leads / coilpack on mine Pete Link to post Share on other sites
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