Alright, wondering what are some free mods.. I searched and found NOTHING.. so..

I have seen a dyno chart of someone with an H23 with I/H/E i think, and it gained like 5 or 6 hp with eliminating the "cold start switch" or something like that... what is this?

Only thing i know of is the coolant lines to the throttle body, and I will do those very soon.. Is this the same thing?

I also noticed a coolant line running to the intake manifold and what looked like some type of electrical solenoid.. What is this? I assume this might be the cold start switch mentioned in another post.. How do i rid of this if it is not needed?

I don't live in a really cold environment but it does get as low as the 20's regularly in the winter(sometimes colder).. would you recommend these mods for my climate?

 

removing your balance shafts would be another free mod.

 

http://members.tripod.com/~Pre_ludE/pmods.html



HTH,
David

 

so the secondaries open up when enough vacuum is lost, is that correct? that makes sense to me...

 

correct, the only reason we have secondaries is to give a little more low end torque at lower engine speeds (normal driving) but the im is capable of flowing more air through the motor than it needs. which kind of 'chokes' it, for lack of a better word. so at lower engine speeds the secondaries are partially closed to prevent too much air to flow but when the engine reaches a higher speed and needs more air they open up because the engine can now handle all of the air that the im is capable of flowing. kind of hard to explain but thats the general idea.

hth,
David

 

thank you.....i pulled the hose to the valve and had no vacuum so its either diconected at the other end, or i dunno whats going on, so basically my secondaries are open even with the vaccum hose connected......dunno why i have no vaccum at that hose...oh wells, w/e

 

ah thanks alot! thats nice page you have there... no what ill be doin tomoorow haha

 

yeah i wouldn't do any of those things on that page. it's been floating around for a while.

i wouldn't remove a front sway bar unless i was on 500# + springs.

alot of people have done experiments on the dual runners, no one has gotten any more horsepower out of it.

throwing a CEL b/c you blocked off your EGR keeps you from hitting vtec (in a h22 powered lude) and probably alters your fuel maps.

advancing timing without having a ton of other info on hand (ambient temperature, A/F, or other vital info) is begging to detonate. after advancing a few degrees on a 80 degree day in may, who knows what'll happen on july 10th, when it's 105 degrees?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bad-monkey &raquo;</TD></TR><TR><TD CLASS="quote">

throwing a CEL b/c you blocked off your EGR keeps you from hitting vtec (in a h22 powered lude) and probably alters your fuel maps.


</TD></TR></TABLE>

Only in a 5th gen, the 4th gen's computer only checks for egr lift. The code will not put you in limp mode in a 4th gen.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Behan &raquo;</TD></TR><TR><TD CLASS="quote">

Only in a 5th gen, the 4th gen's computer only checks for egr lift. The code will not put you in limp mode in a 4th gen.</TD></TR></TABLE>

i am throwing a code in my car. i have thrown a 61 and a 62 code (primary *current code* and secondary o2) and have always been able to hit vtec. i dont see where this whole limp mode with a cel comes from.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Shakes &raquo;</TD></TR><TR><TD CLASS="quote">

i am throwing a code in my car. i have thrown a 61 and a 62 code (primary *current code* and secondary o2) and have always been able to hit vtec. i dont see where this whole limp mode with a cel comes from.</TD></TR></TABLE>

Only certain cels will put you in limp mode, to preserve the engine. I think the o2 cel wouldn't put you in limp mode, it would just run off the base map instead of adjusting to o2 sensors feedback. If that makes any sense, i'm just speculating

 

so does eliminating EGR cause it to light up the CEL?

That would annoy the crap out of me.. how would it tell if its removed?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Behan &raquo;</TD></TR><TR><TD CLASS="quote">

Only in a 5th gen, the 4th gen's computer only checks for egr lift. The code will not put you in limp mode in a 4th gen.</TD></TR></TABLE>

is it an OBD 2 thing? if it were would then affect the 96 4th gen vtecs wouldn't it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GaRn &raquo;</TD></TR><TR><TD CLASS="quote">so does eliminating EGR cause it to light up the CEL?

That would annoy the crap out of me.. how would it tell if its removed?</TD></TR></TABLE>

Removing the egr system will cause the cel light to come on in a obd1. what is commonly done is to make a block off plate for the egr so that the exhaust gas isn't recirculated. The hot exhaust gases still come into contact with the im though. You can also use a hondata im gasket which blocks the exhaust gases before they enter the im.

As long as the ecu sees that the egr valve is functioning ( valve lifting) then it won't throw a cel.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bad-monkey &raquo;</TD></TR><TR><TD CLASS="quote">

is it an OBD 2 thing? if it were would then affect the 96 4th gen vtecs wouldn't it?</TD></TR></TABLE>

Yes it is an obd2 thing so 96 would be affected, you got me there . With obd2 it incorporates the map sensor with the egr. I'm not exactly sure how though. But IIRC the map sensor will know if it is recirculating the exhaust gases or not.

 

you can also remove the ps belt and the ac system if you
want a couple of extra horses

 

ok i did some of the things that is shown in the brady's web page. check out this old thread of mine https://honda-tech.com/zerothread?id=662051. for more info on my lude check out the link below. hope that helps.

 

nice page DW..may have to try some of those things

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by c1civic &raquo;</TD></TR><TR><TD CLASS="quote">nice page DW..may have to try some of those things</TD></TR></TABLE>

thanks man, im suprised some of you guys haven't seen it before. its been floating around for a while now.

David

 

by bypassing the cold start valve do you mean that the hose coming out the thermostat housing, and plugging it back into the other side where the other hose also comes out the housing? sorri...this got me a lil mixed up

 

on a stock car (one without an intake) there is a breather tube that you will see go from the intake pipe into the valve cover (its a metal pipe thing). anyway you will see another pipe welded to that one. in which coolant goes from the thermostat housing into a ruber tube into the metal tube (attached to the breather tube) then into another rubber tube that goes to the tb after that there is another tube that goes from the tb into the block. so....what you need to do is dissconnect the tube that goes from the metal tube to the tb on the metal tube side. then dissconnect the other tube on the tb side. after you have those two ends dissconnected you need to reconnect them in their opposite spots.

so now you have a rubber tube going from the tb to the tb and another from the metal pipe to the block.

btw...this mod will effect your idle a lil bit.
i know this might be kind of hard to understand so just ask if you have any questions.

HTH,
David

 

i think i got it now....will it lower the idle or raise it? cuz my car has idle problems and only runs with a vacuum leak....f*cking sh*t!...so if its going to drop my idle even more, this is a no no for me...

 

neat post... very informative...

 

it won't drop the idle. it will actually make it a little higher depending on how hot it is outside. in cold temps. it will rev to 1500 then down to normal then to 1500 and so on. but in the summer heat in SC it doesn't rev like that so its not as annoying.

David

 

so in the winter it will surge? and summer should be fine rite? sall good....summer mod :-D

 

yeap....at least thats how mine is but yours is probably the same

David