A header question!

[Chrisbgft]

Hey, i just heard that our stock header is about the best u can buy and there is no need to replace it. Is this tru? I just bought my HP Header and wont install it if i dont need to. I will get something else. Also, are there any Fuel Pressure Regulators out for our cars? I am looking for a good christmas modd and have no idea. I want it to be for my engine. No cosmetic stuff. thanx!

[myeverlovinsir]

Looks like you have most of it done. Next may be the hondata
heatshield, then the tb bored out, an earthing system? Keep it up
and post some dyno results.

BTW: the stock header is restrictive in many ways. The primaries
are about 1/4" smaller and the collector is about 1/2" smaller
than any aftermarket header. hth;)

[Chrisbgft]

what about a fuel pressure regulator?

[myeverlovinsir]

Originally posted by Chrisbgft
what about a fuel pressure regulator?

Hey, a FPR is cool, but it will not get you anywhere faster.
Why not opt for something that can give you results? An FPR
will only be valuable when you get a fuel rail and larger injectors,
and the neccessary fuel management system. (much more money)
otherwise you are just controlling stock flow.
(really no benifit performance wise in a stock setup)
I bought the AEM fuel rail and just returned it when I realized that it was not required,
just a looks thing until you require the added fuel or decide to add a gauge pod or upgrade the injectors.
Mostly cosmetic. Thought you wanted engine/perf. mods?

[Chrisbgft]

i totally do, i dont know much about FPR but heard they gave a good increase. I was just looking into something i didnt know about. Thanx for the info. Now i know its nothing huge until later. What about that I-Vtec controller that was posted? i can afford that. or a AFC?

[myeverlovinsir]

The added pressure is minimal considering that you are restricted
by the stock injectors and rail. nuff said. till you want to do it.
but with respect to the i-vtec controller, just hype. I am suspect
to this as well. First the vtec lobes we have don't lend themselves
to a huge increase in power wherever you put them in the rpm
range. Second, the better mod, when considering i-vtec would
be the a hondata chip when it comes out. Third, the next best
thing that I have heard about our vtec engagement is to
tighten down the rocker arms for full effect (cheap man's way)
and/or make a cam swap, then again no one has any cams for
this ride yet. happy hunting!:D

P.S> an AFC is good provided your are willing to learn your fuel maps and spend the time on the dyno to tune it.

[Chrisbgft]

i havnt heard about this hondata chip. What kind of gains should i expect? where can i buy it when it comes out and how much? thanx!

[myeverlovinsir]

Ok mate, now you are up to speed. I am working with my hondata
dealer to make mods on the fly to the flashable 0BD2 chip.
When and if they come out with something comparable to the
RXS chip, then we have something. I am of the belief that we
have alot more to gain in this engine than the RSX. Take that
with a grain of salt, but am near convinced we are better off than
the base RSX, when it comes to hondata. As for cost I would suspect
near or more than the RSX chip. It is really a tough time to judge and
be reasured about the potential of Hondata. Time will tell. hth

P.S> the hondata chip in the base RSX netted near 20 whp. :p

[Chrisbgft]

the rsx chip doesnt work with our cars? i always though they were basically same car different body? why do their headers work?

[myeverlovinsir]

Totally diff. fuel maps and engagement props. But I would wonder
the same about the base RSX chip. why not? Well, first off
they need to be tested on a dyno and refined for the Si specifically.
Other than that, a novice may take the base RXS chip and
see what it does in the Si (would like to see that)

A smart person would take what is done in the RSX chip and
make it purr in the Si, unfortunately we, or most, do not have
this capability. Not yet at least!;)

P.S> the base RSX is known to have a vtec engagement at
near 2200 rpms. This just is not what I have witnessed with our
rides. more like 4800 rpms. (love it) You can check my dyno runs
for this. Anyways, their intakes are dual runners and lends
itself to lower rpm torque gains (apparently), although compared to my dyno's, I am well above any base RXS torque readings.

[Whooopasss]

You do know that the FPR is intank in our cars right? I just came from the dyno with joe and he has the skunk2 cat back, dc headers, afc and aem cai.. ang guess what.. the stock fuel map was dead on with out any change on the afc.. he got 153 Hp.. I'll wait for him to post, then I'll post the pics I took..

[myeverlovinsir]

That sounds about right, (153hp) not bad at all. Will look forward
to the curves, thanks for the input.:D

[JEDI-SI]

DO you guys have and idea!...when this chip is going to be avalible?? whats the price range

[DocofMind]

The only time you are going to need an FPR is you go FI.

Hondas all run rich from the factory. They do this as a safety protocal. To make power, you actually have to lean out the ratio. That is exactly what hondata is doing with their reflash.

Without the proper A/F ratio you are wasting your time. You not only make more power, but you run more efficiently.

[myeverlovinsir]

I guess I circumvented what you are saying doco. I agree, we
are way to rich in the upper end right now (is a good thing especially when you hit the rev limiter).
an AFC should be tuned to compensate and lean out the fuel mix.

[DocofMind]

Originally posted by myeverlovinsir
I guess I circumvented what you are saying doco. I agree, we
are way to rich in the upper end right now (is a good thing especially when you hit the rev limiter).
an AFC should be tuned to compensate and lean out the fuel mix.

;)