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Re: U should look into water injection..more (archive)

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Posted by Paul E on June 19, 2000 at 10:59:43:

In Reply to: U should look into water injection..more posted by MattH on June 19, 2000 at 08:09:01:

: I don't know if you're on the bigboostgruppe but we've had some discussions about water injection, mostly for turbo cars. But it works great with SC's as well. If you don't mind putting in a couple gallons of distilled H2O when you're at the pump then a water injection system can have the same effectivness as a "real" intercooler for a fraction of the price and size.

: BTW, 10PSI with no intercooler and stock compression will cause major detonation unless you dump lots of fuel.
: -Matt

: : After deciding to forgo the RMS aftercooler (Because Dinan will drop all warrently support if you put it on, and we all know how great RMS is as backing up they're product) I asked Dinan about the intercooler. They first stated they were only doing them on M roadsters and coupes. I assume this is because of the extra room in the nose. I then asked again and told of my experience with Dinan and the current Dinan stuff I already have on my car (s/c'er. tb, clutch, suspension, etc.) and that I would be willing to ship the car out to Dinan for however long it took. They came back with a price quote of....$20,000 to $24,000 to just add the intercooler. They only quote around a 50hp increase as well. IMHO not worth 20,000 bucks:).

: : Some things to think about if you want more HP. Go OBD1 if you are not. You can net around 35-40hp at the crank with the addition of a High flow air meter, larger intake manifold and better programming. Also if you go OBD1 you can get a lot more out of mods like headers and getting rid of your cats. Your car will still pass inspection (Not including headers and no cats, you can also ship your stock headers out to extrude and hone) and noone except your dealer will probably know you have switched if you bring it to them for service.

: : Something else to think about is changing the size of your pulley. Which is something I am condiering to do. However I would recommend putting in head bolts to keep the head from lifting under the higher boost. (A person to talk to about this would be Rick Stormer.) You should be able to run a 10psi pulley insted of 6psi. Should net you around 50 more HP.

: : Also getting some CF parts will help alot to. For about every 100lbs you can drop its about .1 sec on your 1/4 mile I believe. If you get CF front fenders, hood, and some lightweight doors you can probably shed 200lbs. (Think about how much faster your car feels on a empty tank.)

: : If you want to help keep the engine cooler get a larger racing oil pan. They can hold up to 2-3 more quarts of oil and will keep your engine a lot cooler, down side is your engine will take longer to reach operating temp.

: : Lastly, if you want your car to be faster get a new diff:). Maybe the safest route you can take and you will feel the difference.

I like the bigboostgruppe board, only, its so heavily Turbo oriented, that there's usually not too much stuff for my Vortech blower....The desire to cool the intake charge though is universal. Where can I learn more about this water injection, ie, how complex is it, who has experience with it either as an owner of an installer, the costs, etc, etc...
Is it really a viable alternative to inter/aftercooling? If so, why havent more people done it?

Anyway, thanks for the tip..Now that Dinan isnt going to do his Aftercooler for the market, this leaves us with only a choice of RMS, which I dont want to do , or nothing...Now maybe this is a real alternative?

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