Wanted to start a single thread for posting of progress/results of anything related to headwork or racing heads.

So, who's the first with realworld experience to share? :o

 

from my own work on my head.. i did a small p&p and upgraded some other small things in the head to make it a tad stronger.. with a CAI i managed to squeeze out 160hp to the wheels alone with just a CAI... im running slightly rich but i plan to correct that with an emanage ult. and a wideband..

so far its been 2k miles and i havent had a single problem with my head. I did all the work myself over a 3 day period. car idles perfect but is a bit sluggish at the low rpms but as soon as i tune it i should be able to squeeze out a few more HP. Also as soon as i start accelerating at 3k rpms the car flies... power has come down from the 3.5-4k range down into the 3k range..but even though its running rich the car flies through the gears and makes power almost to redline.. i have the graph for you guys so incase anyone wants to see the numbers i can provide them.

i plan to go back and do a little more work in january...my target is 170+ hp with out touching the botom end...once i get an emanage, full exhuast, header and some tuning done i should be able to break 170 maybe 180 no problem.

 

You will easily hit 190 at least with all those mods and head work. Believe. Remember to upgrade to at least 91octane to prevent detonation when tuning. Since you would go leaner than normal.

 

93 currently in my car FTW lol.

 

Felt any change on AFRs? Whn made the change?

 

hey pete, hook it up with the head work son! lol i wanna dyno my car soon.

 

you know you are first in line homie!

in case anyone wants some info on using the emanage... one of the top magazine (i forgot which one) did an article on tuning a tc with the emanage...even though it was on boost and auto.. it still had some decent info not mentioned here or on ppls site on what it can do and offer as far as tuning... i learned some good info.. ill see if i can check which issue and magazine it was so you all can know.

 

U know I'm waiting for it. It may help me a lot.

 

info about this magazine?

 

if i remember it was super street..ill look it up tomorow on my lunch time.. im sure if you go online to the big magazine names u can find which one had the article..

oh soros i put on my mmw header..my quick review on this header is mixed.. i "feel" as if i have lost some TQ in the lower and and initial bang of acceleration ( which i think is pretty normal for any header * correct me if im wrong*) but i did notice a nice smoother transition in the 4k rpm range and up.. before at 3.5 or 4k rpms the power was there.. now it seems it starts at 3.5 slowly and then by 4k im at full power and i actually keep it all the way to the redline.. not like before were at 5.5 k it would die off..which is what alot of ppl tell me.. seems like i may have loss some low end but gaind in the top end. i was not expecting to loose so much in the low. how ever the gain in the top was a nice suprise.. car still hauls butt though.. im going to race a friend this week who i usually beat by about 1.5 car or more to see were i shape up now.. hes like my benchamark lol.. to see if i gained or not....if i win by greater and quicker..then i know im set.. but if my some miracle the margin is smaller or he wins ...im going back to stock lol...

 

Well, only way to find out is in a dyno and the track. Also, what u say surprises me a lot, since a 4-2-1 design will help in maintaining a nice low-mid tq. since the design is for that. A 4-1 design is for the upper band, which I'm trying to build up a little. So.... this sounds weird. The biggest issue here, was to have a way to release ALL the air that was entering the engine, so the header, and this header design should help in fixing up the free flow of the air.... Better go to a Dyno to see the results of the Head with the MMW Header. I BET they will be over 175whp all the way maybe to 185-190. YEP, those are my estimates, between 175 and 190whp.

 

well it defenitely flows alot better.. i dont feel the engine strugling anymore as far as air being restricted to flow outward...i know a typical 4-2-1 helps to keep that low end...and the 4-1 for the top end..but this header does help maintain the low dont get me wrong.. theres defenitely an improvement throughout the entire rpm range...but i think what has to play a part in this is that fact the primaries running outward are also quite big..much bigger then stock so that would also be an additive in why i DO have TQ but i may have only loss a little.. i think if the primaries were a little bit smaller in diameter that could have helped me keep the original TQ.. there no doubt they make power in the upper ranges... and i still keep the TQ..but i also think what could be is that the hp and tq both went up but the HP now has passed the TQ were as the normal header the TQ is equal or a little greater then the HP.

i think its mostly a combo of the primaries being larger which would account for the both TQ and HP going up in numbers but now the HP has gone up over the TQ in a greater which would of course help me out in the upper range vs the low.. like before...

but i do love the headers.. the power doesnt die anymore passed 5k and now im making power all the way to the redline..

the mmw header gets my thumbs up...

2 things could also help give me back that low end bang... go from the CAI to a short ram... with a good tune on emanage or camcom..

or go ITB with an emanage.. ITB's would be amazing nice and add that mucch needed fast suction of air in the motor to get back that TQ.

im going to wrap my intake with heat wrap also to see if that helps a little.. but the header makes power.. thats for sure.

 

Since ITB's are sooooo much harder to tune, and are not good for DD, I would stick with the CAI, since the colder the air that goes in the more dense and richer of oxygen it is. Just stay like that for now, and whenever u can, u can get a tune and maybe go over the 190whp with all those bolt-ons and the head work. It's not that hard to ge there. If I had the money I would do the head work.

 

well i use to run ITBs in an old b16 DD and had no problem.. granted the only issue i have in miami is humidity to deal with but i ran fine with them...

i think the TQ is really a combo of the primaries being larger and me having to fill up the head quick with ait.. the CAI will help me out in the long run but i think also a good intake manifold or maybe going short ram might help to suck up the ait quicker.. im going to try the short ram.. also im going to add a breather filter in the outlet cap on the valve cover.. see if that helps to suck in some more air rather then just pulling air from the small tubing and CAI valve cover outlet pipe.. trial and error i guess..

but i have no complaints about the header so far.. i just think i need to check for leaks ....and the primaries being larger is the factor.. if i had gone with a 4-1 i know i would have lost alot more TQ.. but i still have plenty to rip through 1st and 2nd lol..

 

Well I have a breather valve filter, so I can juts recirculate the unburn gas to the atmosphere, so the air that enters the motor, enters more dense.

 

Any update?

 

what was the magazine?

 

Nice work. How much did the P&P cost? What does wideband do?

 

A wideband gives u the exact Air Fuel mixture that u'r engine has. Very good for tuning u'r car.

 

Is it better than S-AFC II or S-AFC Neo?