Methanol/water injection

[BLACK 346]

A little off topic in my own thread, but whilst out for morning walk this morning we came across an E3 Clubby at the lights that had that real lopey tough idle (ie big cam). My wife made the comment on how good it sounded and can I make mine sound like that at idle (silly girl). I pointed out to her that my old VT sounded like that and I didn't think she liked it, her reply was yes I did, the VT sounded awesome. So long story short, how much of this idle is dictated by cam size and duration etc and how much is tuneable? My Calais only has what I would consider a small cam (VCM21) and has a somewhat loud idle but fairly tame ie no chop to it at all really. Can that be changed in the tune to a degree or would I need to go bigger cam?
Not real keen on a bigger cam as not sure how that would work with the blower, and is expensive exercise if I decide that it ruins the car? Any advice/experiences appreciated

[whitels1ss]

Yeah your tuner can make it sound more lumpy at idle if that's what you want.

[whitels1ss]

A very good mate of mine is having water meth & heat insulators fitted & tuned on his Whipple blown stroker this week.

It's been having issues with very high IAT's & expecting a few more killawasps when it's all done.

Looking forward to seeing the results.

[BLACK 346]

Yeah your tuner can make it sound more lumpy at idle if that's what you want.

Thanks Ed, will chat to Brad about it when I drop it off for the meth injection to be fitted.

[Micks]

Rod something also to consider with LSA FI is a lid spacer or an interchiller, this dude Kirk is building some great kits specifically for LSA.
Have a look at his quick VF LSA

https://www.facebook.com/ForcedInduc...1910991605811/

[BLACK 346]

Rod something also to consider with LSA FI is a lid spacer or an interchiller, this dude Kirk is building some great kits specifically for LSA.
Have a look at his quick VF LSA

https://www.facebook.com/ForcedInduc...1910991605811/

Thanks Mick, geez that thing is quick. From what Brad has told me the water/meth will do pretty much the same thing, reduce intake temps to near zero?

[white lie]

It will reduce them to some extent but not right down to zero. Most of the really quick LSA cars I know of run both, a chiller and water injection. Kirk's car would have had both but I believe he usually runs straight water rather than meth. Less cooling capabilities but easier to keep a tab on AFR's, especially if something ever goes wrong with the system.

[Micks]

Most chargers will be affected by heat soak, having a thermal blanket installed or lid spacers help reduce this quite a bit.

[BLACK 346]

Yeah your tuner can make it sound more lumpy at idle if that's what you want.

Brad has advised me against doing this on an Auto car due to the fact it involves messing with the timing and will cause problems at low revs ie stalling. So looks like a cam swap is my only option if i want a cranky idle.

[whitels1ss]

Brad has advised me against doing this on an Auto car due to the fact it involves messing with the timing and will cause problems at low revs ie stalling. So looks like a cam swap is my only option if i want a cranky idle.

Yeah, it can be done but it would have no practical advantages.

In the real world you are best off having any car tuned for the smoothest idle possible.


Actually I have seen quite a few people on other forums getting what is called a "Ghost Cam Tune" ( it.. Loads of people are doing it in USA.)

https://www.google.com/search?client...ghost+cam+tune

which is basically tuning a stock car to sound like it has a big aftermarket cam purely for posing.

[whitels1ss]

Here is a link to a sound clip of one on a G8...

[BLACK 346]

Yeah, it can be done but it would have no practical advantages.

In the real world you are best off having any car tuned for the smoothest idle possible.


Actually I have seen quite a few people on other forums getting what is called a "Ghost Cam Tune" ( it.. Loads of people are doing it in USA.)

https://www.google.com/search?client...ghost+cam+tune

which is basically tuning a stock car to sound like it has a big aftermarket cam purely for posing.

This would explain a couple of real tough sounding Commodores I have come across lately that appear to be slower than stock but make more noise than an F18.

[whitels1ss]

A very good mate of mine is having water meth & heat insulators fitted & tuned on his Whipple blown stroker this week.

It's been having issues with very high IAT's & expecting a few more killawasps when it's all done.

Looking forward to seeing the results.

Got the car back now after fitting & tuning, it's picked up an amazing 50RWKW & extra torque all the way through on exactly the same Mainline dyno.

No changes to pulleys, still running the same old pump 98, just getting much lower IAT's allowing for a bit more timing etc in the tune.

Very happy with the result.

[BLACK 346]

Got the car back now after fitting & tuning, it's picked up an amazing 50RWKW & extra torque all the way through on exactly the same Mainline dyno.

No changes to pulleys, still running the same old pump 98, just getting much lower IAT's allowing for a bit more timing etc in the tune.

Very happy with the result.

That is an amazing result Ed. I guess though if you are tuning for extra power you would have to be super careful about running the water/meth resorvoir dry?

[whitels1ss]

No it's a good quality unit with all the fail safes fitted

& the tuner really knows his stuff.


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I recently also watched another youtube clip which you might find interesting.

Fast forward up to 1 minute 25 seconds & watch till the end to see the IAT differences on a turbo engine before & after fitting.