NA Tech Race to 100whp per 1000cc's

4-2-1 is good if the merges when they go from 4-2 and 2-1 are very close together (like one after the other)

Bear with me.....this is a very technical drawing......is this what your talking about?
header.jpg


Whats more important, the length of the primaries(before the 1st merge) or the length of the secondaries(after) or are they equally important when tuning?
 
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Bear with me.....this is a very technical drawing......is this what your talking about?
header.jpg


Whats more important, the length of the primaries(before the 1st merge) or the length of the secondaries(after) or are they equally important when tuning?

thats what he's talking about - and both are equally important. in a tri-y header (4-2-1) you get 2 distinct tuned lengths, the result of putting the merges close together is you get to "gang" the power hit from both up very close to each other - which narrows your powerband, but gives you an overall bigger hit of power....
 
Help me out if you would. I'm considering either changing cams on my FSDE or buying a ported/polished head, with hp cams and adj.cam gears. I probably need a different intake manifold also.My motor has 79,000 miles on it, I've owned it since new, Mobil 1 every 3,000 since 2nd oil change.I've got a header a K&N Typhoon and SLS catless midpipe on it now, it just aint hittin the way I'd like, but it runs like new. Do you think this motor/transaxle will take the extra power after doing these improvements? What cams and intake should I use?
Thanks for any help. I know i'm asking alot of questions, but you seem to be the man with the plan and this s***'s drivin me nuts.




I'm way off the mark....
i'm probably sitting around the 90kW mark at the moment....(actually 0kW, car is on stands, engine is in pieces as of last night - manifolds are off, mounts are gone....)...so thats about 120hp I guess.

My only "advantage" is a slightly above average knowledge of the engineering required to push an NA motor to that kind of power....but being the nice guy that i am i'm willing to share (unless its something super stupid/highly experimental that i want to be the first to try...theres only 1 or 2 things like that that'll i'll keep up my sleeve)....
 
You really wont have a problem with the drive-train at these power levels, assuming you keeping this pretty mild. If you talk to Ken at ProtegeGarage.com they sell built heads and one of the only options for intake manifolds(626 mani)

You pick up these your car should be pretty peppy.
 
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I'd rather go for outlaw engineering thermal spacers over that. At least the thermal spacers are proven to lower intake temperatures (finally found third-party site that's tested this on-the-road).

You'll get some torque benefit from the longer intake tract, but for "boosting" the air, you'd need to do that with the spacers between the intake manifold and the head.
 
Whats this, Lord Worm in silence? Oh well

didn't someone answer you? you wont stress the motor or the trans with those mods. Intake and cams? since you like the cai go with that - grab a set of stage 1 integrals for something mild and a bit better than the stockos. PnP head probably wont do a great deal with such a mild and modest build.
 
Very interesting indeed.

LordWorm;4377542]didn't someone answer you? you wont stress the motor or the trans with those mods. Intake and cams? since you like the cai go with that - grab a set of stage 1 integrals for something mild and a bit better than the stockos. PnP head probably wont do a great deal with such a mild and modest build.[/quote]
 
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if you search on over to the corksport cam thread, you'll see with a Corksport and JDM set of cams, header, intake and something else i think (nothing major) they're peaking 166whp.
 
And they claim no engine management too. BUT, that is on the turbo 2001 ES car- NOT the NA car.

I think this will be the route I take. I'm not looking to take the 100 whp/liter title, just add some decent pep to the car while keeping it completely reliable.

I've also got some adjustable modified stock cam gears coming to me that I plan on doing a little cam timing with them as well.

And I've got a spare cylinder head that I'm going to mildly port and polish (exhaust side) and install them in when I make the swap. Only bad thing is that I don't have any lifters in the spare head. So I'll either have to get the proper lifters or swap my lifters out of the head that's in the car now and HOPE they are within spec.
 
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Most you can expect without high compression on an NA build is about 150 whp or so, with management. 160-170 whp is possible with high compression and a raised redline. To get to 200 whp will take mad work, though.
 
if you search on over to the corksport cam thread, you'll see with a Corksport and JDM set of cams, header, intake and something else i think (nothing major) they're peaking 166whp.

those numbers were with the turbo....that thread is super confusing.
 
Just a heads up to everyone...... recently found out that our friendly neighbors over at ********* are apparently selling the AWR 4-2-1 on their site......
 
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They aren't, about 3 weeks ago I found the same page showing the AWR and called them to ask. Chris at SU said they're discontinued, but wouldn't tell me why it's still on the sight as available.

Just a heads up to everyone...... recently found out that our friendly neighbors over at ********* are apparently selling the AWR 4-2-1 on their site......
 
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Doesnt look to be same length. TBH after some of the threads ive read regarding it, i was expecting something a little more auto exeish.
 
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