In for the long haul Ultimate NA build thread.

[aaguirre123]

Originally Posted by Dr Speed

no that was rwhp in my build. You are bench racing. Math and reality are not necessarily the same thing, and a manufactuer is more likely to inflate numbers for marketing, advertising and sales. Also Turbo potential hp figures vs N/A number potential is not equal.

I am just quoting what Crawford was stating that the FA20 yields more HP than an EJ on the same turbo. Because of this I am concluding that a NA FA20 will yield more HP than an NA EJ. Granted percentage increase in HP will be different but FA20 will yield more HP nonetheless. Also I would like to add that Subaru used the FA20 engine because a NA EJ20 or EJ25 can not reach the desired goal of 200 crank hp on pump. May be if you modify the design of the EJ20/25; Longer stroke, higher compression piston, DI/PI fuel deliver and redesign the rods to achieve a higher reving motor.


But wait, Subaru did modify the EJ20/25 motor. It's called the normally aspirated high reving FA20 motor.

[Hawk77FT]

How 'bout we wait and see, hey? that'd be great!

[swarb]

Originally Posted by Hawk77FT

How 'bout we wait and see, hey? that'd be great!

No! I'd rather bench race other motors and prove to the world that crawford(my favorite) says the fa20 makes more power than a ej20 on boost which means nothing on this thread. I just wanted to make a point that it does, and it means nothing.

[chaoskaze]

Lol stop


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[Dr Speed]

Time for some Loooooooong Division!!!! #math

[celek]

Did some cleaning and some test fitting.

[xkalelx]

Keep up the good work Chris. Really excited to see this build coming along.

[celek]

Big news.
At SEMA I met some new friends that had some scrap parts laying around. This is inbound, ETA next week.
Base for the Individual throttle bodies.

[cyde01]

wuuuuuuuuut more info on itbs pleez

[86 South Africa]

So all this talk of different engines and % changes in hp and crank vs. whp is just cr#p...

And totally missing the point of this build.

I think I've said before that I really admire the work and dedication in this one, and definitely keen to see what the final results will be... so please dudes (in the nicest possible manner) can we cut the rubbish and stop the

for the build - I'm super keen on seeing the final built motor - and just how much the torque curve will be improved (of course the tune will make a big diff once all the physical parts are done too).

Can't remember if you said already... you going to use e85 too?
And thanks for sharing

[Snake]

And even if you don't meet your hp goals, please let us know the outcome. Seems there have been a few NA builds on this platform but no one publishes anything, which is sad!

[churchx]

86 South Africa: how differs %of whp you complain about vs torque improvement you are asking about?
Or you wrote rather about shape of torque curve, preferably without infamous torque dip? That can be fixed in stock engine too with different aftermarket exhaust headers without any engine itself rebuild, so i hardly see it being among most important objectives of this engine build endeavour.

[celek]

Originally Posted by 86 South Africa

So all this talk of different engines and % changes in hp and crank vs. whp is just cr#p...

And totally missing the point of this build.

I think I've said before that I really admire the work and dedication in this one, and definitely keen to see what the final results will be... so please dudes (in the nicest possible manner) can we cut the rubbish and stop the

for the build - I'm super keen on seeing the final built motor - and just how much the torque curve will be improved (of course the tune will make a big diff once all the physical parts are done too).

Can't remember if you said already... you going to use e85 too?
And thanks for sharing

Yes on E85

[86 South Africa]

Originally Posted by churchx

86 South Africa: how differs %of whp you complain about vs torque improvement you are asking about?
Or you wrote rather about shape of torque curve, preferably without infamous torque dip? That can be fixed in stock engine too with different aftermarket exhaust headers without any engine itself rebuild, so i hardly see it being among most important objectives of this engine build endeavour.

I don't know what the "importance" of it is. Depends how you drive I guess.

The torque is one of the negative aspects of the stock engine... so what I am keen on seeing is how much torque the NA build will produce + how the torque curve looks in the end - in other words, instead of bolting on some FI that solves the problem it will be interesting to see how this built motor will deliver it's power.

No measure is perfect, but a % increase is much more comparable because it negates much of the actual hp numbers people quote. 10% is 10% whereas 10hp is ? If you had 500hp to begin with then 10hp isn't much - but if you only had 20, then 10 is great.

Also different dyno's read differently + each car will have slight differences (even on the same dyno)... so therefore the obsession with hp numbers is silly. So what motor can/can't make "200hp" for e.g. is a silly comparison. That's all.