Indications Vtec indicator for 1.8

[daoler]

I've just found this on sailing through the net, it's a Vtec indicator for HOnda engines with Vtec technology.
I don't know if it works in the euro 1.8. I've sent a mail asking but still no response, anyone know something about this indicator??

URL: icemode.com VTEC Indicator Light Kit Installation

[Tuono_DK]

Originally Posted by daoler

I've just found this on sailing through the net, it's a Vtec indicator for HOnda engines with Vtec technology.
I don't know if it works in the euro 1.8. I've sent a mail asking but still no response, anyone know something about this indicator??

URL: icemode.com VTEC Indicator Light Kit Installation

MAN u have a Civic not a christmas tree??

[RabidManx]

I hope the person filming it was also not the driver!!!!!

[GHGH]

No point really. The VTEC technology is used differently in our engine: VTEC on is "fuel saving mode" at relatively low rev and throttle. When you step on it the VTEC is switched off for better performance and higher fuel consumption.

Short description:

http://asia.vtec.net/Engines/R18A/index.html

[Unknownsoldier]

Yeah, exactly GH, could we pop an R ECU in and therefore switch the way the Vtec works????

Tom

[GHGH]

Haven't a slightest clue, but several of the voices in my head says "No".....

[GHGH]

To try to be a little serious, isn't the 1.8 iVTEC a SOHC, while the 2.0 CTR engine is a DOHC? I smell big differences.

[Unknownsoldier]

Possibly, but could it not in theory have the Vtec changed???? Anyways no worries,....was just hoping, hehehehe.

Tom

[f.ss.t]

the type r has got one when the rev needle climbs into the vtec zone now, i would buy something for my type s if they made one though!

[Unknownsoldier]

But your Vtec doesn't kick in, it kicks out in theory at least, so we'd need an indicator telling us when the VTEC goes off I agree though I am envious of the vtec light.....

Tom

[equinoxe]

Originally Posted by GHGH

To try to be a little serious, isn't the 1.8 iVTEC a SOHC, while the 2.0 CTR engine is a DOHC? I smell big differences.

Actually, i think the 1.8 engine (and basically the i-VTEC engines) run SOHC up to the "VTEC" point - for less consumption - and less powe (that being around 4500rpm i think), and after the VTEC kicks in the engine runs in DOHC mode - the power really kicks in and the mileage drops. That's what i understood from the movies on the Honda Civic site anyway....

[FWH]

Originally Posted by equinoxe

Actually, i think the 1.8 engine (and basically the i-VTEC engines) run SOHC up to the "VTEC" point - for less consumption - and less powe (that being around 4500rpm i think), and after the VTEC kicks in the engine runs in DOHC mode - the power really kicks in and the mileage drops. That's what i understood from the movies on the Honda Civic site anyway....

No... there is only one camshaft in the 1.8

SOHC - Single Over Head Camshaft
DOHC - Dual Over Head Camshaft

[equinoxe]

it appears i misunderstood. the ideea i got from the civic videos is that the engine is indeed DOHC (and yes, i DO know what the acronyms stand for) but up until a certain rev point, only one camshaft is in operation, while the other one kicking in after that! sorry....

[GHGH]

The CTR 2,0 engine is DOHC, while the 1,8 l R18A 140 HP engine sitting in my car is SOHC.

By the way, what are the pros and cons between one and two camshafts? Is it only a cost/performance issue, or are effects like weight reduction and less fuel consumption due to less friction factors of significance? Just wondered.

[pjr]

Originally Posted by Unknownsoldier

But your Vtec doesn't kick in, it kicks out in theory at least, so we'd need an indicator telling us when the VTEC goes off I agree though I am envious of the vtec light.....

Tom

I suspect the Eco lights might be doing this. I would assume (perhaps wrongly) that 2 or 4 or 6 Eco lights correspond to the Vtec being in economy mode ?

[Unknownsoldier]

Possibly, I had always thought, perhaps wrongly that the vtec limits were just set higher in the 1.8 and the same sort of Vtec was set lower in the 2.0, because tbh, theres didn't from a non-engineering (i.e. my point of view, I claim to know nothing about engines, I pick up bits and bobs and can understand theory's but give me a spanner and I'm lost ) point of view.

Tom

[GHGH]

Originally Posted by pjr

I suspect the Eco lights might be doing this. I would assume (perhaps wrongly) that 2 or 4 or 6 Eco lights correspond to the Vtec being in economy mode ?

The eco-lights are linked to fuel consumption (if you watch the computer running consuption "bar" the eco-lights changes with it). Diont think they're directly linked to the VTEC.

[GHGH]

Originally Posted by Unknownsoldier

Possibly, I had always thought, perhaps wrongly that the vtec limits were just set higher in the 1.8 and the same sort of Vtec was set lower in the 2.0, because tbh, theres didn't from a non-engineering (i.e. my point of view, I claim to know nothing about engines, I pick up bits and bobs and can understand theory's but give me a spanner and I'm lost ) point of view.

Tom

According to this article, the i-VTEC operates in the range 1000 - 3500 rpm it the load conditions are right.

Technical Overview of Honda's new R18 i-VTEC Implementation

[Unknownsoldier]

Hmmm most interesting, now that I can understand, it is logical, simple and most scarily, it's so obvious, why did no one think of it earlier. Also is VVT-I and Zetec essentially the same principle, but used by different company's???

Tom

[GHGH]

Think so. But I don't know the details on how they're doing it.