Taking the plunge into alkyholism ...

[DJay]

A recent gift left me with $400 with which to upgrade "something" on my GN.

I've "almost" decided to purchase the SMC alky kit. I realize the DIY can be just as effective, but I feel more comfortable going with something already assembled (less for me to screw up!).

I just want to make sure I don't need to purchase anything else before this is installed to make this as safe as can be.

I own a STOCK GN, 70K, 3" THDP w.test pipe / dump, walbro 307 (will be hotwired before the alky is installed), scanmaster 2.1, 14" cone air filter.

I'm hoping I don't need special injectors for the alky ... but you tell me what's best. I've been told an Exhaust Gas Temp Gauge is a good idea; is it necessary?

TIA guys ... lookin forward to experimenting with this to get a lil more outta the buick!

 

[DJay]

I do have stocker inectors. Maybe i should invest the $300 into the 50# and be done with it? To properly prepare for alky?

 

[Red Regal T]

50s are a good thing. No downsides. But you won't go any faster when you put them on. If you install alky, you'll knock at least .5 off your quarter mile times right away. I've noticed that people tend to make alky injection akin to rocket science. I can assure you, it is not. If you buy a ready made kit, you still have to install it. There's the under the hood part, the under the dash part, etc. The only thing more difficult with diy is that you have to buy the pump from one place, the pressure switch from someplace else and so on. It's just as difficult, or easy to install as any other kit. There just aren't that many components. But hey, YOU have $400 to blow. Go ahead and get that SMC kit and then you'll have enough left over to get some alcohol.

 

[DJay]

Guess my question was : is it necessary to get bigger injectors to run alky?

Sorry for the confusion.

 

[bishir]

Currently I'm running close to 20psi w/stock injectors and alky. Scanmaster shows 770-780s at WOT. Which is almost ideal. I'd say go ahead get the alky kit and if your not getting enough fuel upgrade to larger injectors. If you order the SMC kit get the dual nozzles and larger tank if possible. You'll want it later on anyways.


James

 

[Two Lane]

Might want to also consider the new optional Progressive Controller on the SMC kit.

HTH

 

[Red Regal T]

To answer your question, before I upgraded to 50s, I had stock injectors. I had no problem when I installed alky. Just to clarify, you don't need bigger injectors to install alcohol injection.

 

[Razor]

Maybe what your thinking is.. if the performance level of the car increases which it will running higher boost... then the injecti\ors play a role. In other words stock injectors that are working ok will get you into the mid 12's at 105-107 MPH with boost ..they start going static faster than this level..so if you plan on running slower than 12.50's..stockers will be ok..even tho alky works as a 7th injector since it burns somewhat. I was able to take my car on alky and stock injectors down to 12.20 at 110.

HTH

As far as the DIY vs prefab..many positives and negatives.. installation will still be required tho on either.

 

[Red Regal T]

Originally posted by Razor
I was able to take my car on alky and stock injectors down to 12.20 at 110.

HTH

As far as the DIY vs prefab..many positives and negatives.. installation will still be required tho on either.

As far as those 12.20s on stock injectors......all I can say is.....YOU'RE AN ANIMAL!!!

I also wanted to point out that, there are NO NEGATIVES with my DIY alky kit. If there was, I would be the first person to make it known.

 

[DMan]

I guess its time for a rocket scientist to chime in..

There are pros and cons to prebuilt systems and DIY systems. DIY systems are just that - Do it Yourself. You put more time and effort into sourcing components, installing, wiring than you would a prebuilt. Razor also made a good point that if you ever decided to pull your alky system off the car (unlikely, but could happen), you would more easily find a buyer for the prebuilt alky kit than you would your homebuilt system. If you like to tinker, go DIY. If you don't want to mess around, install a prebuilt. Choose whichever one makes you happy.

Straight alky, even water alky, burns quite nicely. You can 'extend' the useful life of your stock injectors by supplementing with alcohol. As Red Regal sez, you'll get your best bang for the buck by installing an alky kit. You do not need to change injectors just yet.

 

[DJay]

I really do appreciate your input guys.

I'm also happy to hear I don't HAVE to go with the new injectors jus yet. I'll let you know how everything turns out when I do the install ... (More than likely I'll be beggin for input on THAT aspect as well, heh heh )

This board has been SUCH a huge help in slowly turning a novice without a clue into a novice with some idea of a clue! Thx again.

 

[DMan]

DJay make sure you hook up with Paul Vilser and his boys in the Chicago area. They would be happy to help you out as you learn more about these cars..good bunch of guys I met while I was at the Nats this year.

Denis