N/a Engine Setups?

[ms-glanza-cyprus]

whats your opinion on the 4ag 20v vvti engine (black top) ?

Im sure it can reach over 200 bhp with a substansial amount of modifications.

How easy is it to fit in the glanza though? Im sure it will need mounts all over the place. As ive seen they are different.

On a power to weight ratio it must be great. This could be a project for my wife's car. She wants a new engine since im getting one :)

Anything you have to say im listening....

Thanks , Mario

[riko666]

its been done in paseo's so cant see why it cant be done in a glanza. needs custom engine mounts etc..

[starletsy]

It will fit i know of someone thats building one atm with the blitz turbo kit on board

[ms-glanza-cyprus]

It will fit i know of someone thats building one atm with the blitz turbo kit on board 

←

the topic quotes "NA engine setups" :)

im not sure i trust turbos anymore since my last engine went kaboom , and the one before that threw pistons left n right making jumbo jets look like submarines :)

think about it. Lightweight internals , bored out , sleeved for security , what ya think? I read a site on the net about this engine . This guy is messing with the engine and revs to 15,000 rpm fomula one style :)

[riko666]

i think he may be exaggerating, that's nigh on impossible for a street car...f1 cars can cause they put £millions into r&D, the highest street rpm ive seen is 10,000rpm, in rx7's. meh, n/a's have theyre advantages

[starletsy]

Turbo's only go kaboom as you put it down to misuse or bad tuning <_<

If you want to go down the N/A route buy yourself a civic type r and start off with something ahead of the game.

Simon

[riko666]

n/a usually tends to the displacement game, you cant go very far with a small capacity engine, but with bigger capacity engines the sky's the limit....just look at all the american v8's, remember, there's no replacement for displacement B)

and yeh, itd be better for stuff like a civic type-r cause those !Removed! are already high strung to hell, plus its got variable valve timing and all the necessary valvetrain to maintain the high revs (which are necessary to getting h00j power in n/a setups)

[scutch0]

the highest street rpm ive seen is 10,000rpm

the mazda mx3 has a 10,000rpm rev limit too i think. 1.8 v6

Rich.

[riko666]

really? i wouldn't think so, the engine produces 128hp @ 6500rpm - don't see why it would need an extra 3500rpm for - bit hard for a conventional engine to hit those speeds, needs uber strong valvetrain componentry to stop the whole valvetrain from destroying itself...

which is why an rx7, i.e. rotary engine, can reach such high speeds, no changing of velocity, just constant uni-directional rotation hence allowing for greater engine speeds with less friction

[nrgizerbunny]

18,000rpm would mean the conrods pull 8-9g when going up and down - so you wouldn't get conrod failure through creep stress (repeated cycles) in next to no time.

I would personally go turbo as the variables to play with are easier than non-turbo. Turbo you play with boost, inlet temps etc. in NA the one to give you the most power output would be the valve timing which is a much bigger job.

Also note you get severe pumping losses with NA, you don't get those in turbo. Alternative would be supercharger?!?

[riko666]

but supercharger would mean pathetic top-end and the risk of high end detonation if it isnt set up properly? and also i heard its very difficult to adapt a supercharge onto the 4efe / 5efe due to the position of the pulleys and the like

[nrgizerbunny]

if you pull the powersteering system off, you can utilise that pulleyt to drive a supercharger. If you start off with a sportif, it doesn't have powersteering anyway.

IMO its easier to stick a supercharger on a car than a turbo. Superchargers are usually positive displacement pumps as opposed to turbomachinery (turbochargers). therefore you never get surge, you also don't need to worry about routing the exhaust.

However you would have to stick on a wastegate somewhere to stop too much pressure building up but the same thing would apply to a turbocharger because no petrol cars have variable geometry turbochargers.

have a nice day

sanj

[riko666]

damn your intelligence

[nrgizerbunny]

okay i feel damned :arrgg-matey:

[riko666]

lol

[ms-glanza-cyprus]

the engine im referring to does have vvti though , thats a start. You can play with things like bigger valves (from a supra) , quad exterior mounted throttle bodies , a powerfc , mad cams , high compression , etc..

This would get you more or less to 230 i believe. 230 NA on a glanza = ***** whooping days init

What ya think?

Hugs n kisses , mario

[riko666]

yeh, but it wouldnt feel the same as 230hp in a turbo, in an n/a you have to rev hard to extract the power, whereas in a turbo it all comes in the midrange....and plus the n/a configuration you mentioned is rather expensive and takes a lot of fine tuning to make it work right....and with "mad cams" you run the risk of making the car of a dog in terms of driveability.

individual throttlebodies if set up correctly can give quite sizeable gains though, match it up with a better fuel delivery, perhaps a bigger spark, and you got a nice gain. then if you get camshaft pulleys you can make timing changes and what not. take it to get it properly dyno'd (dynanometer, not rolling road) and get it fine tuned / timing / ecu remapped etc...