[Fordcan]

Hey everyone, im currently tuning for ethanol and 91 mix on my GTX2867R .64.. Wondering if their is any worth doing a 100 octane tune on the stock fuel system? Just contemplating if this will get me another 20-30hp to hold me over till I get my Aux Port injection come Christmas time. Anyone out their tuned on 100 octane with this turbo? Curious on numbers...

 

[Fortehluls]

I just recently spoke with my tuner about this and he was able to make 466 on another customers car with 110 on a 2971r

 

[42ryan24]

Are you going to drive around with 100 octane in your tank often? I would find it impractical but if you feel like paying for it then their is definitely a great benefit in power.

 

[Fordcan]

No I wouldn't daily drive this octane. Just the occasional weekend fun...

Forte was this with the stock fuel system?
I think I saw one guy on here get 400whp out of the stock fuel system and 100 octane on this turbo. I'd be happy with that..

 

[42ryan24]

Why not have 400whp all the time running on w/m or mixed with E85?

 

[Tarrant64]

Why not have 400whp all the time running on w/m or mixed with E85?

He did say he has aux coming later on - so this is more of a temporary get him by on higher octane until then. He's also already on E85/91. Sounds like he can't reach 400 with just that alone - which isn't uncommon. Possible, but I don't think I see it often without aux or w/m.

 

[Fordcan]

Yea I haven't seen many cars get 400whp on stock fuel system with e85 without stressing out the HPFP. Id rather not go that route. Guess I'll just have to wait till the winter..

 

[willfromfreeport]

Yea I haven't seen many cars get 400whp on stock fuel system with e85 without stressing out the HPFP. Id rather not go that route. Guess I'll just have to wait till the winter..

There's an aux fuel in the for sale section! Why wait?! lol

 

[djfourmoney]

Unless your going to the track on a regular basis, you should be looking at water injection.

The best performance you will get out of an unleaded fuel is VP MS 109 full stop.

Water Methanol + 91 octane will out perform E30 and Street Blaze 100, GT 260, Trick 101, even MS 109.

5 gallons of VP Street Blaze is $68 locally, 4 gallons of Banks Additive (50/50) is $35

 

[Tarrant64]

Haven't looked to find the answer yet but another things comes to mind and that is investing in a slightly larger turbo that will more easily reach those numbers on pump gas alone (not needing aux or w/m). If you add up the cost of of going w/m or aux fuel - wonder how long before you start to break even with just selling your 2867 and getting something larger. 3071 maybe? I'll have to look into it myself as I'm curious. But I want to say that may be a route.

 

[42ryan24]

Haven't looked to find the answer yet but another things comes to mind and that is investing in a slightly larger turbo that will more easily reach those numbers on pump gas alone (not needing aux or w/m). If you add up the cost of of going w/m or aux fuel - wonder how long before you start to break even with just selling your 2867 and getting something larger. 3071 maybe? I'll have to look into it myself as I'm curious. But I want to say that may be a route.

a lot more lag though

 

[Fordcan]

Yea I didn't want the lag and 420whp is all I want in a daily and I figured thats in the wheelhouse of the 2867R. The water meth i dont feel is as safe and would rather go the port injection route for a couple hundred more..

 

[djfourmoney]

Yea I didn't want the lag and 420whp is all I want in a daily and I figured thats in the wheelhouse of the 2867R. The water meth i dont feel is as safe and would rather go the port injection route for a couple hundred more..

What is your direct experience with water/methanol injection?

I've never had a failure. Failures come from TWO reasons -

1) Running more than 70% Methanol, if you want to run more, go Aquamist or Alky Control

2) Empty Tank

Lag is present with any turbo upgrade. There are cures for turbo lag but nobody seems to know what they are or don't care about it, after all roll racing is the rage now isn't it?

 

[42ryan24]

Yea I didn't want the lag and 420whp is all I want in a daily and I figured thats in the wheelhouse of the 2867R. The water meth i dont feel is as safe and would rather go the port injection route for a couple hundred more..

Trade offs with either option. I haven't had any trouble with my aquamist system and what I love most is that since I bought the 10L tank, I fill it up like every 2 months. I don't have to deal with mixing rations of e85 at the pump or looking for specific gas stations that sell e85. Depending on your region e85 can be at most stations, but not by me. The other thing I worried about when debating going with an aux fuel system meant for e85 was that the ethanol content in e85 varies significantly by season in many states and then your tune would be off. I don't have these problems with w/m injection.

 

[BlackT5]

You don't have to run e85 to get the benefits of an aux kit. Just having the additional fuel cures a lot of knock and you can crank up the tune a tad. The real fun does happen on e.

 

[BobbyD707]

I just recently spoke with my tuner about this and he was able to make 466 on another customers car with 110 on a 2971r

Sweeeet! who is your tuner?

 

[BobbyD707]

I just recently spoke with my tuner about this and he was able to make 466 on another customers car with 110 on a 2971r

And is that on stock MAP sensor?