hey guys me and my friend were arguing about VTEC killer cams being H1 legal. I read the rules and don’t think they are. He read the rules and thinks they are. I'm not even going run H1 were just trying to put this argument to rest.

Thanks Guys

http://www.todaracing.com/prod....html

 

This was already discussed in another topic, but I don't have the energy now to go searching for it!

 

i searched for toda and vtec killer and couldn't come up with anything

 

Nope.

If it were just cams then yes, but it replaces the rocker arms as well, and has additional hardware that wouldn't be legal.

 

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

If it were just cams then yes, but it replaces the rocker arms as well, and has additional hardware that wouldn't be legal.</TD></TR></TABLE>

Sure they are.

The rules say the cylinder head is "free".

 

THEY ARE LEGAL....and i have a set for sale!!!

 

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

If it were just cams then yes, but it replaces the rocker arms as well, and has additional hardware that wouldn't be legal.</TD></TR></TABLE>


wrong....HEAD IS FREE!!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chad &raquo;</TD></TR><TR><TD CLASS="quote">wrong....HEAD IS FREE!!!!</TD></TR></TABLE>

[edit]

Yeah, cams and rocker arms are free.. Head is free except for valves, it seems.

9.3.1 Hybrid Vehicle Engine Preparation

a) This section is intended to clarify the engine preparation rules specific to Hybrid Vehicles.
b) The engine, from the top (deck surface) of the engine block “down” to the ground, MUST be constructed
entirely of Honda/Acura OEM parts. No aftermarket parts are permitted in this, the “bottom end,” of a Hybrid
Vehicle engine. Although engine overboring is not subject to the .040 allowance permitted in section 7.1(c)
pistons are required to comply with 7.1.c of this rulebook. Pistons must be available as an OEM Honda part.
Piston tops may be “notched” or “cut” for valve clearance only.

c) “Above the engine block” cylinder head preparation and porting is unrestricted. Valve size and material
must conform to original specification for that particular head. Rocker shaft assemblies are also unrestricted.
f) Throttle Bodies and Intake Manifolds are not considered part of the cylinder head and must be unmodified
OEM Honda parts. Port matching is allowed but cannot be machined beyond one (1) inch into the intake
manifold.
g) Items (such as throttle bodies and intake manifolds) that attach to the cylinder head may be re-drilled for
fitment purposes ONLY. Alteration of air, fuel, and/or coolant passages is not permitted. Fitment
modifications that alter air, fuel, and/or coolant passages as a side effect will be deemed illegal.
h) K Series cylinder head must use unmodified OEM camshafts and rocker assembly that is sold with K
series cylinder head. JDM is considered OEM and permitted. Cylinder head preparation must conform to
rules in 9.3.1(c) unless otherwise stated herein.

 

Can someone school me as to why these cams would be beneficial to an H1 motor?

It seems like ligher camshafts could possibly give just a bit more stress on the timing belt, since the momentum of the camshaft won't help as much to lift each valve. (OK, maybe that's a long shot...)

Other than that, you're rev limited by the bottom end being OEM, so.. hmm... getting rid of the VTEC solenoid seems like a handy thing to do... but... ?

Searched: https://honda-tech.com/zerothread?id=506990

Still not sure how fast you can rev a stock bottom end B-series motor... maybe a B16?

-Chris


Modified by Chris F at 11:38 PM 2/12/2006

 

IIRC, Chad ran them in H1 before he switched to a K.

He'd be the one to ask about 'em.

 

ok I'm wrong but i agree im curious what benefit these would have over a spec C? since you can only use a honda bottom end.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ekim952522000 &raquo;</TD></TR><TR><TD CLASS="quote">ok I'm wrong but i agree im curious what benefit these would have over a spec C? since you can only use a honda bottom end.</TD></TR></TABLE>


HONDA PART bottomend....put some ctr pistons in, deck the block and the head get compression to 13-1 and you are golden

the killers make peak power sooner and hold it longer over the c's....like bigtime..i was at over 200 hp everytime i shifted the car\\\
you won't get that with c's

 

did you have these in a type r motor or a b16?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ekim952522000 &raquo;</TD></TR><TR><TD CLASS="quote">did you have these in a type r motor or a b16?</TD></TR></TABLE>

both!!!