Hey everyone, I'm Mutt!
I just picked up somones project 1990 Accord Coupe for a handfull of dirt...
I've been working on it now for about a month, in my spare time.
I know it's about 10yrs behind the style curve but I'm wanting to learn to do a bit of painting and body work.
When I picked it up it looked like a rolling shell with one headlight and the rimms. but there were enough aftermarket parts for me to get my money out of it if the engine wasn't sound... which thankfully it is! NA boltons for now, V-6 swap or turdo for later...

 

Welcome!
I don't thing you're gonna fit a V-6 swap in there for less than a gazillion dollars.
Good luck with the project.

 

Hello New Member..

Welcome to the HAF
Good car to learn to do anything with it..cant lose much trying

Here's your engine swap

 

meh.... it's roomier than it looks
the day I picked up my body kit, I thought, damn! this thing's waaaaay to big,
slapped it up for mockup and sure enough, just a bigger car than it looks to be.
and heavy as a mercedes...
I just wanna take the skinny-wheel to it sometimes and hack off about 1000lbs.

 

meh.... it's roomier than it looks
the day I picked up my body kit, I thought, damn! this thing's waaaaay to big,
slapped it up for mockup and sure enough, just a bigger car than it looks to be.
and heavy as a Mercedes...
I just wanna take the skinny-wheel to it sometimes and hack off about 1000lbs.

http://wwhonda-tech com/showthread.php?t=2400821

yea I can get a v6 w/ vtech for around 750 complete with the new sql drive thingie where it kills off half the cyl when your cruising.
the TL tranny that apparently mates up with it would be a bit more...amazing what happens to that supply thing when there is little to no demand
and tha's a v-8 sir, but one hella built motar!!! not that I'd turn it down if I could shoe horn it in...& with guys running ls1's in miatas who-knows?

and you are correct, the plan is likley to involve me doing a holset or my t25 swapp from the Ecripse and a p06, I just don't know enough about the dizzys, if I have to get another one when I get the chipped p06?..

 

What's the point of the sql drive thingy that kills half the cylinders when you're cruising?

 

That's how they plan to save on gas miles

 

For anyone that wants a v-8 or v-6 and does mostly hwy driving they are great. You still have the omph of a big v but get much greater mpg. No sense in dumping fuel into cylinders that aren't doing anything
and I do a lot of hwy driving! Another reason I targeted the long geared CB7.

 

Hi Whistler,
Your reply is along the lines of what I expected, but I am confused.

No matter what size the engine, or how many cyclinders it has, then in order to maintain a constant speed it has to produce a certain amount of power. If it produces more power, the car speeds up, and if it produces less power, the car slows down. Right?

So, if the power output is correct to maintain a constant speed, how can killing half the cylinders improve fuel consumption? The power output is halved if half of the cylinders die, so to compensate the remaining cylinders have to double their power output. They do this by using more fuel than they did before (surely twice as much?).

I thought the primary reason why 6 and 8 cylinder engines use more fuel than 4 cylinders ones was because of the increased friction forces and weight associated with all the extra components (pistons, valve gear, etc).

If half of the cylinders are not consuming any fuel, but they are still moving their pistons and valve gear, then the friction has not reduced by killing them.

Can anybody explain?

 

I think they play games with the valve gear, so the deactivated cylinders aren't pumping air. I'm not sure if it works exactly this way, but if the valves never open, then it doesn't take as much work to run the inactive cylinders.

From a thermodynamic standpoint, an engine operating at wide-open throttle is most efficient. So the best way to achieve excellent fuel use, is if the engine could magically adjust it's displacement when you press the GO pedal.

Say you have a 2.0 liter engine with throttle open a little bit, operating at 2500 rpm constant highway speed, and just enough throttle to give 10 horsepower.

Then imagine another engine, say 0.2 liters, throttle wide open, operating at 2500 rpm & 10 horsepower. THIS ONE will use substantially less fuel. Problem is, nobody's figured out how to build an engine that can magically change displacement.