FCar2000TA

iTrader: (7)

Does anyone sell a full on, no ****, everything kit to get E85 in the tank into the cylinders? Pump, fuel rails, injectors, prayers, unicorn blood....

Stock motor?
Cam only?
HCI?
Boost?
SR-71?

Obviously there is tuning required.

HCI2000SS

iTrader: (2)

Good question. I've never seen any particular kit for this. You looking to run E85 on the n/a setup listed in your signature?

big hammer

I'll try to refer buddy a-a-Ron to this thread. He's hiocrew and knows all about this

98_WS6_M6

iTrader: (18)

It’s actually fairly easy. You just need a flex fuel sensor and the pigtail and fittings


Flex fuel sensor
https://rover.ebay.com/rover/0/0/0?m...2F112232792814

flex fuel sensor pig tail
https://rover.ebay.com/rover/0/0/0?m...2F262513454514

You need some type of fittings for the sensor depending on your fuel system. Here’s one option but they make quick connect to AN fittings too
https://rover.ebay.com/rover/0/0/0?m...2F122723199716

98_WS6_M6

iTrader: (18)

As for hooking it up and tuning. The pigtail has a power, ground and ff wire to pcm. The ff wire goes to pin 56 on the blue connector on the pcm. The ground is self explanatory and I used the ignition wire for my power source.

Once you get all that hooked up its just tuning. If you’re not runnin any boost (keeping 1 bar map sensor) you should be able to use your stock 99-02 pcm. If you go to a tuner usually they’ll know what to do but they need to change your operating system to one that accepts flex fuel. I believe an ‘02 Tahoe is one that will work.

Theres a couple real good threads on this actually. Let me find them and I’ll post them up

as for injectors you just need e85 compatible injectors sized for your power level. This is going to vary a ton based on your power levels but with e85 you use 33% more fuel. FIC is a really nice injector and they could help you figure out size. Or just a Siemens deka setup also. Most are e85 compatible but you want to be sure. Same rules for fuel pump.

as for fuel system as long as there are no rubber lines in your fuel system it should be fine. There aren’t any rubber lines on the stock fuel system so technically the stock fuel system is compatible.

98_WS6_M6

iTrader: (18)

https://ls1tech.com/forums/showthrea...1734778&page=1

https://ls1tech.com/forums/showthrea...1845056&page=1

big hammer

A-A-Ron FTW!

98_WS6_M6

iTrader: (18)

Lol. Took me a lot of reading to learn all that.

one more thing. If you are running boost AND FLEX FUEL you need a p59 pcm. Stock 99-02 pcm doesn’t support 3 bar map. And I’m not sure about 2 bar. But the p59 plugs right in to the 99-02 wiring harness. You just have to change the end caps. Instead of blue and red they are blue and green iirc

FCar2000TA

iTrader: (7)

I would like E85 with my current setup plus Frankenstein heads milled for more compression. But, I would like the E85 set up to be able to support a NA 454 setup in the future.

98_WS6_M6

iTrader: (18)

Once you get the e85 components installed and tuned it's just like running any other fuel. If you go to a bigger engine you're probably going to need a larger fuel system. I would just get e85 up and running on your current combo first and then when you go to another set up you can upgrade fuel pump and injectors when you need to. My tuner usually helps me spec my fuel setup when I build an engine. Also, most injectors/pumps will have specs for e85 and your hp level.

Who's your tuner? What injectors and fuel pump do you have now? Stock fuel lines?

sxc Z28

Subbed. Good stuff, thanks Aaron.

FCar2000TA

iTrader: (7)

I currently have SVO green top 42# injectors and Racetronix 255LPH pump. Lines are stock. I don't think the pump is E85 compatible since I bought it before E85 was a thing

What is the flex fuel sensor? I was under the impression that all I needed was a pump, lines, pressure regulator, and 60+# injectors.

98_WS6_M6

iTrader: (18)

For sure man

FCar2000TA

iTrader: (7)

My tuner is PCMofNC via HP Tuners files. Also, my tune has to use the MAF.

98_WS6_M6

iTrader: (18)

Usually racetronix stuff is e85 compatible. Give them a call, they could let you know if your injectors are good enough too.

If you just want to run e85 and not flex fuel you could go without a sensor but I wouldn’t recommend that. Technically you would need to test the e85 at the gas station every time you filled up because it varies from station to station. But guys still do it so to each their own.

The flex fuel sensor senses the amount of ethanol in the gas and adjusts your tune accordingly.

G Atsma

^^^This! With E85 alcohol content usually all over the place, you need to be able to account for that, otherwise your AFR is ALSO all over the place. Get the sensor!

FCar2000TA

iTrader: (7)

Is the stock 99 Trans Am PCM compatible with the E85 sensor? I have the OS from a 2002 TA.

HCI2000SS

iTrader: (2)

The Racetronix 255 pump is not E85 compatible according to Lonnies Performance

FCar2000TA

iTrader: (7)

I am thinking of using the Walbro 465LPH pump from Hawks.

98_WS6_M6

iTrader: (18)

Exactly

Yes the stock 99 PCM will work but your tuner will have to use a flex fuel compatible OS. It’s no big deal to a good tuner. My buddy Darth_V8r helped me with it along with reading those threads I posted