My 3.3L Subie Conversion Thread, Got me some 914rubber stuff Options

[Chris H.]

Finally starting the thread. First, I never would have done this if it weren't for several of you helping me out, especially Ian at:

Cold Water Conversions

Ian tolerated dozens of questions from me as I decided which way to go. Thanks again!

Here is the candidate (or victim, depending on what side of the fence you are on):



A 1975 1.8L with California Emissions...I've had it for almost 11 years. During that time I have logged about 2800 miles on it. I decided to swap it out for a modern drive train so my daughter could drive it so I started looking for a 2.2L Subie and a 2WD auto trans. This setup CAN be made to work with a custom hanger, but it's not a very exciting trans. Think early '90's Camry or Corolla acceleration. I'm sure it could be re-geared but an Audi trans would probably be a much better option.

Then I found and SVX for cheap and changed directions entirely. Looks like my kid will be learning to drive a 5 speed Subie!

So far I have:



Strong running SVX engine



2006 WRX trans purchased from NASIOC



1990-1992 Honda Accord shifter Update - you cannot use this one unless you design something to reverse the shifter mechanism operation. Since it is designed for the trans in front of the car the mechanism moves in the opposite direction (mirror image) of what is needed. I ended up using an MR2 shifter.

If you don't feel like chasing this stuff down Ian will source it for you.

Next up I'll post the highlights of the SVX strip-down and note some of the pitfalls, valuable parts, and stuff to be careful not to break!

Any feedback, comments, questions, concerns are welcome. I want to do it right.

[Chris H.]

Thanks for the insight jcl... the alternator setup is going to be key...

Hey carrying over my hijack of strawman's thread (sorry man) ... been looking at stock Subie gauge clusters... does anyone know if the tach needs calibration like a 914's? How about compatibility?

The reason I ask is that the bone yards and e-bay show compatibility with either 4 cylinder or 6 cylinder cars. Example:

Legacy Cluster

Note how it says either 2.5L or 3.0L...Could be a mistake...

my ideal setup would be something like this:

2004 WRX

Or this:

05 STI

Just not sure if it would be possible without more $$$$ than the Speedhut setup.

Any insight would be appreciated.

[strawman]

... been looking at stock Subie gauge clusters... does anyone know if the tach needs calibration like a 914's? How about compatibility?

IMHO, the easiest solution is to match the cluster's native number of cylinders with the sixer in your car. But I'm sure there's a way to use resistors, amps or clamps (or some other techie solution!) in-line between the ECU and Suby cluster if you choose to go with a WRX cluster. All of the Legacy gauges I looked at were too wide for my liking, but if you're gonna hack up the 914 dash anyway (like I did!), I guess it really doesn't matter.

904svo (Larry) is an electrical whiz and REALLY helped me build a converter to use the 914 tach. (IMG:style_emoticons/default/beerchug.gif) I've still got the converter (see below) and could pass-it-forward if you can use it, though you'd need to convert it to work with the six-cylinder signal. PM me if you're interested (and be sure to thank Larry!).



You'd still be challenged with the speedo, since the Suby uses a VSS signal versus the cable-driven 914 speedo. I looked at using a VSS-based 911 speedo, but my cheap-ass couldn't stomach paying ~$100 for a questionable used one and prolly need to send it in for a $350 rebuild... most of the cheap ones are 85mph, too. (IMG:style_emoticons/default/barf.gif)

Keep up the great work!

Geoff

[904svo]

... been looking at stock Subie gauge clusters... does anyone know if the tach needs calibration like a 914's? How about compatibility?

IMHO, the easiest solution is to match the cluster's native number of cylinders with the sixer in your car. But I'm sure there's a way to use resistors, amps or clamps (or some other techie solution!) in-line between the ECU and Suby cluster if you choose to go with a WRX cluster. All of the Legacy gauges I looked at were too wide for my liking, but if you're gonna hack up the 914 dash anyway (like I did!), I guess it really doesn't matter.

904svo (Larry) is an electrical whiz and REALLY helped me build a converter to use the 914 tach. (IMG:style_emoticons/default/beerchug.gif) I've still got the converter (see below) and could pass-it-forward if you can use it, though you'd need to convert it to work with the six-cylinder signal. PM me if you're interested (and be sure to thank Larry!).



You'd still be challenged with the speedo, since the Suby uses a VSS signal versus the cable-driven 914 speedo. I looked at using a VSS-based 911 speedo, but my cheap-ass couldn't stomach paying ~$100 for a questionable used one and prolly need to send it in for a $350 rebuild... most of the cheap ones are 85mph, too. (IMG:style_emoticons/default/barf.gif)

Keep up the great work!

Geoff

That tach adapter will drive a 911 tach off a 6 cylinder engine also.
The trouble with using the Subaru Speedo is that it will only read the correct speed if you use the same tire size as the Subaru, also there is no way to fix it as it control by the speedo chip in the gauge panel.