Questions about alcohol (Split from: Alcohol Injection)

[ed39]

im thinkin about goin to alky real soon, some questions....

what can the stock turbo take?

dose the chip need to be reburned or can you get away with out it?

can i hide it and make it appear not there?

[Ts86ttype]

Not sure what you mean, what can the turbo take??? Do you mean boost???
On the chip, not sure how much adjustment the extender chip has as far as increasing rich or lean and timing. I prefer a TT chip that is set up of alky and my add ons', like turbo size,cam size and injectors. It will have adjustments to work with the alky when tuning... Check out were you got your chip from and see what they say...
As far as hiding it, some parts can be, depending on what alky system you get and some are right there for every one to see. Like the container that will hold the alky solution. I have heard some guys actually put some green food coloring in the alky tank to make it look like a actual aver flow tank... You will have to be inventive in that area... Tom G.

[Keller]

Not sure what you mean by "take". The stock turbo is pretty much done at 20-21 PSI. So you can crank it up a bit and use alcohol instead of race fuel or unleaded race fuel.

There are alcohol profile chips. Not completely necessary, but they make the tuning a tad easier.

Its a little tough to hide everything. The nozzle most of all. You might be able to run it under the manifold (86-87 car) and underneath the plenum or run a tube through the rear of the manifold (under the coil pack/module) to fully mask it. But now you might be compromising its performance by not atomizing the alcohol to all cylinders equally. You might be able to put the nozzle into the IC outlet neck, paint it black, and cover the alcohol plumbing with corrugated loom used to hold electrical wires. Would not hide it from me, but might miss the eye of the average car guy. That, plus the green food coloring trick would make for a pretty stealthy install.

[ed39]

in regurads to the turbo, what psi dose it become inefficient... can i safely run say 23-24lbs with it or is 21-22 the limit before i need to upgrade the turbo, the engine can handle 24-25 on stock head gaskets correct?


i would love to hide it completly to get those ricers really scratching there heads haha, ive looked at the three kits in this post and the washer reservoir is stealthy youll only see the nozzel.

i just dont wanna send the chip back and have to wait while my alky kit is in if i can get a way with out needing a reburn that will keep the car that much simpler, i can change tons of stuff on the chip but i prefer simpler the much better off you are

[Keller]

Originally Posted by ed39

in regurads to the turbo, what psi dose it become inefficient... can i safely run say 23-24lbs with it or is 21-22 the limit before i need to upgrade the turbo, the engine can handle 24-25 on stock head gaskets correct?

The stock turbo is done at 20-21. After that, it is just throwing hotter and hotter air. It is outside the sweet spot in the map. Look at the compressor map at http://www.gnttype.org/techarea/turbo/turboflow.html It is for the Turbonetics Cheetah. You get the idea.

A TA49 is still efficient at 25+ PSI. In fact, at 15, or even 20, it is just getting started. But it requires more fuel than stock injectors can feed.

Turbo Tweak makes chips with alcohol profiles.

Not blowing head gaskets is a matter of careful tuning and making sure you are not too lean or running too high an EGT.

[ed39]

so if i go with alky on stock turbo i should set it up for 20psi?. and i thought there was a limit on how much boost the motor can take even if tuned properly

[PaCemkr86]

who's chip are you running? and what alky kit are you going to use ?

[Keller]

See what others using alcohol with a stock turbo have used. The cooling effects of alcohol might buy you a tiny bit more boost headroom.

As far as the upper boost limit... I would say it it below the boundary of:
- Common sense
- Where you feel comfortable tuning
- Acceptable limits
- Before the heads lift off the block
- Before you crap your pants

and...

- Before your bottom end looks like http://www.gnttype.org/techarea/pict...ocks/DOTC.html

Not sure there is a hard and fast number. But as long as you are at ~20 with a stock turbo AND there is no evidence of detonation AND the car shows to have a good air/fuel mix, you should be OK.

[ed39]

i was thinking about going with the devils own alky kit, and my chip is an extender chip, i tried the turbo tweak chip twice and i never had good luck with them.... for wat ever reason nothing to do with eric he was more than willing to help i just needed the car to run right and could not afford the down time with out the chip

[Fast_t_type]

I have the Devils Own Alky kit. I love it. It works very nice. On a hot day can feel when it comes on. Going to upgrade to the duel nozzles. Should have got them in the first place. Had trouble with the inside mount nozzles so I'm going to get the new out side nozzles.