As most of you guys know, I recently converted the V over to E85. Here is a little writeup of some of the process. I'll also use this to keep a blog of status and to answer questions.

This past weekend we converted my CTS-V over to an E85 tune, and for the extra fuel required, we ran a Walbro 255L High Pressure In-line pump with Custom fittings. In the Tune, we were able to add 9 to 10 Deg of timing in the mid range and 7 to 8 deg on the top end all with ZERO Knock. Dyno numbers are coming soon (hopefully Wednesday or Thursday). We are thinking it gave us about 20 to 25 RWHP Increase roughly.

The shop that did the install is A.I.R. (American Intense Racing). They are going to put a package together for this conversion if anyone would like to pick one up or has any questions. You can reach Clint at 303-250-1466. The kit will come complete with detailed instructions $299. The kit Includes:
-Walbro Inline pump 255L per hour. Good for approx 550 to 600 RWHP on Gas. Uses stock Fuel filter system.
-3' of High Pressure Fuel Hose, (good to 300psi)
-An Fuel Fittings to easily convert over from Stock Fuel setup, to inline pump, and back to stock, no removing or cutting of any fuel lines.
-40 Amp Bosch Style Relay to activate Fuel pump
-30 Amp Fuse for surge protection
-All Wiring provided, includes 1'Ground wire, 6' positive pump wire, 18'
10 gauge power wire, wire crimps & wire ties.

Below are the pictures of the Inline pump install.
Pics of parts, (does not have all parts involved, missing wires for
pump & wire ties Etc)

Took a little time to find the best place to mount the pump in the
tight confined spaces under the V. Turns out above the fuel filter on
the passenger side of the car was the best place.

Test fitting the pump.

Wiring up the pump.

Testing & Buttoning up everything.

Finished of pumps install. Positive wire ran to the rear of the car,
the ground tied into the 10mm bolt that supports the fuel filter. No
leaks, no wires or hoses that could get damaged, looks clean.

Now to the Truck. Passenger side you need to find the large grey positive wire that supplies power to the stock fuel pump.

Shown here is the positive wire (for the stock fuel pump) is cut and the Switched on wire for the relay is tied in.

The stock wire is crimped back together, and the rest of the Relay is wired in. More instructions in Pic.



Sorry that's all for the pics for now. In all, the install went well. The pump is surprisingly quiet.

Here are some of my initial impressions:
-Starting the car takes a few seconds longer because of the extra fuel that's needed.
-I definitely feel the added power. Before (and I assume its because of the 5300ft altitude here) I had problems breaking the rear wheels loose but now I have no traction. Again, I'm sure that you sea level guys already have this problem. The top of 1st is worthless and I have a ton of hop and that's giving it WOT from a roll.
-I do notice the extra fuel consumption. Statistically its about 30% more fuel required to run E85. E85 around here ranges from $1.98 to $2.19 per gallon.
-I have yet to see what the IAT's are like now since the E85. Maybe the summertime will show some differences.
-The injectors that came with my maggie were the green top 42#'ers. As it sits right now, at the top of 1st and 2nd gear, I am at 100% duty cycle and If I do any further mods, I'll need to get some larger ones (thinking 60#'ers).
-The exhaust smells sweet. I guess its the sugar in the corn. Its definitely pleasant though.
-I will update the thread with gas mileage etc as time goes on. I'm currently on my 1st tank of E85 now.


Please post any questions you have and I'll do my best to answer them!

Happy Motoring.

 

No interest over here?
Anyway, we hit the dyno this morning.
Pre E85 we got 429rwhp
Post E85 we got 487rwhp

that should raise a few eyebrows. I'll post before and after dyno sheets later today

 

thats with no other mods what so ever? Same dyno? Same weather conditions?

That seems awfully high for simply a 93oct --> e85 conversion.

Regardless...this is sick, and people should be lining up!

 

Today was probably 15-20 degrees colder. Other than removing my stock airbox and putting a custom made lingenfelter style shield everything else was the same. But you guys always say there is no gains with air intake kits.
Same dyno, same tuner

 

Here is the Dyno.
CTS-V with E85 Conversion = 58 RWHP / 55 RWTQ Increase

After an inline fuel pump and e85 tune were installed on her, we did a dyno today as you all know..

Results below of best run of 91 Oct VS E85 Fuel.

 

very nice alot of cars are picking up amazing numbers from doing this

 

HAHA, thats exactly what it did! I was reading and as soon as I saw actual numbers, my eyebrows lifted lol.

I'm looking at a radix for the SS truck right now. Makes me wonder......

 

Very cool man. I can apppreciate this as I have changed my fuel system to run primarly on E85 as well. Cool kit, I dig the idea and install simplicity. Thinking of more injector at this point or where they looking good on the LOG?

 

I'll definitely need larger injectors. They were pretty close to if not at 100% duty cycle. Before I get headers or install my OD pulley, I'll need some 60#ers atleast

 

That's great man. We're still limited on e85 pumps around here.

 

Wow, great numbers Deedubb!!!