engine diferences

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engine on the left is:
1.6 VVT 133 engine and manages (acording to the book) 40.3 mpg
engine on the right is:
1.2 TCe 100 engine and manages (as above) 44.8 mpg

side note, the VVT part on the 1.6 model doesnt kic in till after your over 4k revs

I think the VVT kicks in closer to 5k personally.

I did better than both of those mpg figures on Saturday. 

so did I. Although most of the M1 had a 50mph average speed limit on it so hardly motorway driving.

At 75 I can kick out 40MPG it's closer to 35/36 with the shorter gearing of the RS however; I might get a remap done to increase the torque which I think should help.

What effect does Variable Valve Timing Have?

 

The engines look very different. Does that mean that a turbo charger cannot be fitted to the 1.6 VVT?

Basically its the timing of the valves opening and closing which I'd adjusted to maximize power and efficiency

The engine cannot be turbocharged easily

I had VVT way back on my Honda Desol convertible (a 'grey' import at the time, as UK identical version was the CRX), as Honda were in the forefront back then with VVT.

It was less subtle in those days, and kicked in at just over 4k revs,  forcing you into the back of the seat, like a mini rocket. Only downside was fuel consumption, but in those days petrol was cheap.

When you look at my Delsol below it was very similar design to the Wind, with a targa style top, though one difference was that the rear window did go up and down electrically.

I must confess to having gone over 4,000 revs a few times since I bought the car, one of them being today, and I can't really say if I felt a power surge or not, but I'm not certain, but I agree that fuel consumption declines once you go above 3,000 revs.

The problem with the Wind is that it takes a long time to get above 4,000 revs. Starting from a standing stop, if you put your foot down hard on the accelerator, it seems not to respond for what seems like ages.

LukeC wrote:Basically its the timing of the valves opening and closing which I'd adjusted to maximize power and efficiency

How did you do that? 

Night Fury wrote:The problem with the Wind is that it takes a long time to get above 4,000 revs. Starting from a standing stop, if you put your foot down hard on the accelerator, it seems not to respond for what seems like ages.

That's because it's a 16v engine, which typically have less low down torque than a similar 8v motor.

Use the gears, if you want to make swift progress.  If you don't short-shift, you can keep the revs above 4k and make pretty good progress.

@Araf using the power of autocorrect chap

LukeC wrote:@Araf using the power of autocorrect chap

So you changed the software tables?  Tell us more. 

I always found the automated roof far to complicated in the Delsol, and had quite a few faults with it as it got older. The Wind which does the same thing, ie, targa roof off, has a far simpler design, with less to go wrong (we hope)...

love it

Barbs wrote:love it

Well it was a crazy £18,000 way back in 1983, so it should be good  

I bought my 'grey' import four years later, at a more realistic £6500 at only 10k miles on the clock, direct via an import agent at Southampton dock, all taxes and import duty paid.

Grey imports were the rage back then in the mid 80's as the Japanese MOT was so costly for owners that they just traded in for new cars, and there was a glut of secondhand cars sent to the UK.

The only difference other than a more reasonable price, was that the Delsol had no tar underseal (soon remedied with a pot of underseal) and plastic headlights instead of glass, and a square rear number plate, rather than rectangular. Everything else including the engine was the same as the UK's CRX.

The Delsol eventually outnumbered the CRX in the UK, as it was far cheaper to buy secondhand.

Actually looking to see if it is possible to get the rear window to go down when roof goes down, only thing that would make it difficult is the wires that warm the window when it ices up doubles up as the stereo antenna as well

Before you even think to do a rear window modification which would be a massive job....

.... Although the back window could go fully down on the Hona Delsol/CRX, it got rather buffety above 40 MPH, and if used half way down or just partially down, it was a bit more calmer.

But it did look good 

PS..Do not let me put you off as in my younger days I used to experiment with my cars, my best DIY acheivement was to have a Honda Civic coupe, which had a normal boot (not hatchback) and put a rear windscreen wiper on it. The way I did it was drill a hole in the boot lid to fit a wiper motor with spindle through the horizontal boot lid, and the hinge of the wiper arm & blade slid up the rear windscreen when you opened the boot lid, and when closing boot lid, rear wiper & blade returned to bottom of screen. It worked great, but the rear wash system I installed was hopeless as I fitted water nozzle hidden under rear spoiler and the water fired forward to the rear screen, and I put a water bottle and pump in boot. I then found out as the car went forward at speed the rear wash spray did a U turn and went backwards due to air flow of car, and hit cars behind me      

Though it did work fine if car was stationary, and the water spray would reach the back window, and then I would use the rear wiper 

Hello I had mine dynoed before got an exhaust mad and put a filter on and my print out showed me that the engine kicks in at 3.5 but then lasts to 5 before power starts to slow down