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Cams On Rb's

sergi_dee
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iruvyouskyrine
iruvyouskyrine

MAF spacer and a Hi-clone in your intake.

France
France

lol "stage 2"

GTSBoy
GTSBoy

f**k no!

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Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

Message zoom on this forum, he's all over the WMI shit.

It explained to me what you do is get the afrs down to say 10.5 and inject, change nozzles blah blah with wmi till you lean it back up by 1 afr point, ie back to where you were before. Then advance the timing as you would with E85.

My lazy E85 blanket is 5 degrees at peak torque and about 7 up top. Then use a dyno to determine where on the curve you can improve.

He reckons WMI is on par with E85, however with wmi you lose off boost torque because you're not injecting it on vac (well you could).

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Trex Grand Master

Trex

Posted
Posted

Message zoom on this forum, he's all over the WMI shit.

It explained to me what you do is get the afrs down to say 10.5 and inject, change nozzles blah blah with wmi till you lean it back up by 1 afr point, ie back to where you were before. Then advance the timing as you would with E85.

My lazy E85 blanket is 5 degrees at peak torque and about 7 up top. Then use a dyno to determine where on the curve you can improve.

He reckons WMI is on par with E85, however with wmi you lose off boost torque because you're not injecting it on vac (well you could).

Was explained to me in a similar way, change nozzles until your standard no wmi base afr is only richened by around 0.8afr with wmi and either tune it out if you have fail safe or leave it if not.

Not having much power under vac isn't a problem for us auto guys, always on boost when you're above 10% throttle.

The kits aren't cheap. If I can't get an extra 20-30kw under 4K I don't think it's worth it for me. But peak power, $500 for an extra 40-50kw is money well spent.

jet_r31 Mentor

jet_r31

Posted
Posted

My tuner said he doesn't want to run more then 20 to be safe.

Maybe I could go e85 have a eflex sensor and do the 30 bottom end conversion.. If I go 30 bottom end would I need a bigger turbo it has a .67 rear it's the atr45 from hypergear 600hp rated ?

you would just get a a .82 housing of him, no need to get another turbo.

cheers

darren

tridentt150v Grand Master

tridentt150v

Posted
Posted

Bigger cams will only move the power to the right on the graph. Yes there may be a tad more of it but you will loose a whole lot down low. Same goes for putting a different plenum on. So its a trade off. May be worth it, may not, depends on exactly what you want to do with the car.

Also note that if you upgrade to the wrong cams (generally anything massive) you will need to delete the VCT solenoid on the intake, which will also hurt low down torque and power. I think the HKS 256mm drop in does let you retain vct? (someone would have to confirm that) so that, or one tha tdoes, pretty much the only one you should realistically go with

Tomei make drop in where you can still use your VCT, or last time I looked they did.

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