Jump to content


Recommended Posts

Lifting heads and E85 has been around for years

Have a think what u could change to suit

It all begins with the fuel

Lifting a head is all to do with cylinder pressure. The only thing I can change is target an initial lower boost to keep my af flat through the curve.

If that's the case , it's going straight on gumtree as there boring as f*ck to drive like that.

Share this post


Link to post
Share on other sites

Correct

Time for a re tune

People have managed 40psi on stock head gasket with e85

Edited by Wombat Bellend

Share this post


Link to post
Share on other sites

Yeah all well and good to make a pretty power figure at the top of your rpm range but if you want a quick car on the street you need boost down low or you are going to get walked but a much lower kw car.

Speaking to my tuner earlier today and he always uses 14mm head studs. I guess this is the edge you play when you build stuff yourself.

Share this post


Link to post
Share on other sites

Yeah all well and good to make a pretty power figure at the top of your rpm range but if you want a quick car on the street you need boost down low or you are going to get walked but a much lower kw car.

still get walked if it comes on too hard to early. Mid 300s tractable rwkw is adequate for a daily IMO. Decent compromise

Edit . Soft, B4 U lot start

Edited by Buf-Phoon

Share this post


Link to post
Share on other sites

Gaz

With the basics you can smack boost in as hard as it can make it, I don't see the issue when tuned correctly

Share this post


Link to post
Share on other sites

Yes that one thing but used correctly not the issue, u think it would be but no

what is unique to E85 ......

Share this post


Link to post
Share on other sites

Eff has it ( in part )

But what can we do with cooler cylinder temps safely now ?

Edited by Wombat Bellend

Share this post


Link to post
Share on other sites

What kind of timing are you seeing on e85 and say 26psi jet and gav?

I gave my mates El sohc 4l a tune the other night on the Dyno torque peaked around 12* at 26psi and 6500rpm made 445rwkw. Curios how much you see in a dohc motor to compare.

Edited by eff xr6t

Share this post


Link to post
Share on other sites

Well well well

There we go

Lean out 98 temps rise and see pre ignition lean out something that's already around ( lets just use 30% cooler because its an easy reference figure for e85 ) and u get ..... A desired lambda for E85 under big power

How much leaner u think ?

30% of a total ? Sounds ballpark yeh

Look here as a few quick finds

o3Q8V2m.png

yK6O1Kz.png

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Donation Box

    Please donate to support the community.
    We appreciate all donations!


FordXR6Turbo.com Powered by Invision Community

×