Originally Posted by DazC
I understand what you say about the heads now. I have seen them before. I take it that there is another throttle body as well as those individual port flaps?
Yep sure is.
notice the intake manifold, and where the injectors and fuel rail are that's the intake manifold runner control assembly. also notice that is the exp/egt turbo stateside log (two runners inside) ihi manifold
Here's a shot at the SPI on a stand. Notice the oil filter placement on the oil pump housing (backside)
Here is a nonintercooled rst manifold w/ t3 on a 1.9sefi
Originally Posted by DazC
With forced induction though, the capacity isn't the restriction on power as the turbo compensates for the lack of capacity. The advantage of a larger capacity engine is the ability to spool up a larger turbo lower down in the rev range due to the larger gas displacement.
Originally Posted by DazC
I personally have stuck with the 1600 CVH as they rev a little better than the longer stroke engines, producing more power higher up the rev range when the other engines start to die off. It helps with traction with the cars only being front wheel drive.
That makes a lot of sense, in fact, a boosted spi has a powerband up to 6250ish rpm but it depends of course. I was looking at some of the solid lifter kits available and found this, any of you guys have these installed? How about in unisen with double valve springs?
http://ferriday.co.uk/performance/solid_lifters.htm
Originally Posted by DazC
A few people over here have managed to fit the MTX75 5 speed box into our European Escorts but I don't know about the US Escort or the 6 speed box. We have the luxury of being able to fit the Quaife ATB diffs in our origional boxes which is what I have done. The car now drags you round corners, makes it a lot more interesting to drive.
That sounds inspiring about the diff interchangability. Which gearbox came stock in the rst's? Yeah, I've found a ford escort zx2 guy over here successfully transplant a mtx75 5speed from a focus zx3, and the zx2 being built from the same platform (mazda bg chassis, protege, 323 familia) It would be mimicable to the 2nd gen us-spec's. I hear he had to have the zx3 block and oil pan for it to boltup appropriately, modified tranny mounts, modify the car to use the cable-shift mechanism as well as different clutch slave operation, mix-matched axles and a few little things here and there as well as engine mount. Since I've heard of 5spd folks swap to the svt 6spd, and the svt engine being a built 10.2ish:1 cr zetec engine basically, the bolt patterns should be the same. It'll be something for me to dig into once I torque out the mazda m5 gearbox.
Here's a gearratio listing of our box that i cut from a powertrain .pdf, FS was the fuel saver ratioed tranny. The egt and zx2,spi use the model g m5 where the 1.9 has the model f, just to sorta show what we have over here (limitations
)
Also in this pic, don't let the bellhousing boltup pattern (mainly the top two bolthole distances not being a length of ~5.2" fool you. That drawnig schematics is from the mazda 1.8l bp engine's tranny bellhousing.)
You guys have any pics laying around of the valvetrain by any chance? Also how about any other misc. stuff associated with what I'm looking for. Thanks a lot
brad