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

[mepstein]

Aw, c'mon Chris... Looking at posts on the SVX says that the Z32 plus 370 injectors with an chipped ECU will give you over 300 hp. Wouldn't you like that??
On the other hand if I were you, I'd probably be satisfied (for awhile!) with your current upgrades and just wanna drive the damn thing!
And was your previous setup functioning so poorly that you weren't getting all of the engine to the ground? I never saw that in your posts so now you have me wondering... (IMG:style_emoticons/default/idea.gif)

Yeah we'll see. It's plenty fast for me really. The MAF sensor plug was not grounded and I had a bad crank angle sensor so the timing was way off before. Suddenly had a lot of backfiring and loss of power after I hooked up the VSS. Maybe a coincidence but the VSS does provide input that can affect the performance. That's why the power was way down. Initially it was good so the sensor must have gone bad gradually.

Mark, here is some info on the upgrade to Nissan MAF/Injectors/rechip

Subiechips Site

On the Subaru-SVX site the guy who makes these offers group buys (same guy). It's $13 off for every person who orders one, up to a certain number. They can be the standard rechip that just remaps the ECU or the modified one. So if we had say, 5 people buy one the price for each would go down $65 per.

Group Buy Info

I see the site and the info. Thanks!
Version 1 will have a stock eg33 to get car running.
Version 2 - a 300 hp NA engine would be a fun ride. The suby trans and running gear is all being built to handle that kind of power.

[914forme]

400HP on an EG is a pretty easy make to hit. They are a very stout engine. Run E85 and I see no reason to touch the internals to hit the 400HP mark. You have to add some positive pressure to get there though.

This is a Bugeye running internally stock EG33 with a turbo. Puts out 447HP on 7 PSI of boost.

Seems like a great idea to me (IMG:style_emoticons/default/confused24.gif)

[Chris H.]

Thanks Andrew!

I finally found that sensor tee. Here's what I used for the oil pressure sensor:

Pressure sensor adapter

This isn't quite the cheapest one but it gives the best explanation. Most Japanese cars have 1/8 BSPT sender threads, while the more common one speed hut comes with is 1/8 NPT. This one allows you to use both. The Subaru sender is pretty big so it sits on top.

I used this for water temp.

water temp 1.25 pipe

Don't think I bought it from Taiwan but who knows... Just added a small section of hose and put it it right by the outlet. You could also tap the pipe itself on the engine, I just wasn't quite confident enough to do that with aluminum.

[flmont]

where did U get those headers,.??? Thanks

[914forme]

Bob Bigkat_83, but I do believe they are from outfront motorsports items.

[flmont]

I hope to be all over the Z32 plus injectors,with re-ground cams, if the cams are worth the trouble, the subie chips guy said he would only do the intake cams....But, I assume that you need to go duel Z32's and duel MAF's ??

[914forme]

I am so confused.

Z32 you only need one, as it is a MAF. Will require an ECU reprogram or PROM

Cams yes intake, you have two of them on the EG33

Header, they are short tube non equal length from outfront. I did calculate the proper length of header, and am still trying to figure out how to cram ~36" from port to collector into the back of a 914.

BTW, one way around the cams is forced induction. The EG is not a bad breathing engine, it is just not great.

[Chris H.]

Side note: last time I visited Bob (BIGKAT_83) he had a nice pair of EG33 cams. If he still has them he'd probably sell them reasonably. Always wise to have a second set reground so you have the originals in case there is a problem at the machine shop.

[flmont]

914forme,...Ha ha,..well I didn't know the Z32 was a MAF,..I thought it was a throttle body,..and since the 3.3 had 2 intake's that it would take 2,So MAF is a airflow sensor,..?? the subiechips site talks about installing 2 ea,..IDK,SO ,.good ,.I only need one.....

[914forme]

EG33 uses one MAF.

You need one Z32 MAF, these are from Nissan Products, can be found as the day is long on eBay. It is a 300zx MAF.

You will need one ECUTune Stage 2 upgrade chip. NLA as far as I can tell. Or use SubieChips.com stuff.

You will need larger injectors 370cc is what it is setup for, they can also do others. Nissan skyline injectors stock units.

Unless you are turning the engine, you do not need twin MAFs just complicates the build, that would then be twin turbos, air cleaners, mucho bigger injectors and then rough transitions that can come from mucho bigger injectors.

Other way around is an aftermarket ECU, then you can do all sorts of crazy things, like staged injectors, etc...

It would take all the above mods, and then performance cams, and headers to get close to 280HP, maybe E85. After that your looking at forcing more air into the engine and E85, and aftermarket ECU, and intercoolers..... list goes on and on, don't forget oiling system modifications.

Did that make it clearer than mud?

Now back to Chris' thread (IMG:style_emoticons/default/hijacked.gif) sorry Chris

[Chris H.]

Nah, I like this kind of discussion. Go for it. It's VERY HARD to tune a car with 2 MAFs. Leave that for the youngsters. 300 HP in a 914 will scare you pretty good. If you want more than that you need an LS1 or a turbo.

Yes I got my headers from Bob who got them from Outfront. They are very compact.

BTW I painted them up real nice.

Before:





After:





This ceramic paint is really good:



Stinks and smokes a little while it's curing for a couple minutes, then it's on there for good. Was pretty sure the wires were melting until I figured out where it was coming from. Then it stopped and no smell at all since.

FYI I think ECUTune and Subiechips might be the same thing.

[914forme]

one thing of note about the out front header, the collectors are un-finished, meaning no flange provided.

Turbo EG33 is still cheaper than an LS swap, unless you dry sump it with an aftermarket kit. I have a spreadsheet, lol, to much time to think on my hands, as fingers are still down and out for the count.

And I see it is listed as Miami Fl, so could be the same guy

[flmont]

No,..I would be happy with a EG33,..Stk but just built a little,..injectors, EZ32 and maybe cam's ,..are aftermarket ECU's for that engine crazy expensive,..??

[flmont]

Oh,..Chris,..I wanted to ask about the oil pan,is it stk,or cut down or a small car version,..?? Thanks...Frank

[Chris H.]

Stock. It's fine, no need for a cut down version. Although the smallcar one is very nice looking. The stock ECUs are expensive. About $150-$200 aftermarket. $400 OEM.

[mgp4591]

No,..I would be happy with a EG33,..Stk but just built a little,..injectors, EZ32 and maybe cam's ,..are aftermarket ECU's for that engine crazy expensive,..??

That's cheap for a reworked ECU vs. an aftermarket like AEM or the others out there. Cams would be a pain in the butt - welding and regrinding just doesn't feel right to the metallurgist in me... The 4 cam setup and chamber design isn't too bad so throw a larger turbo on it to keep a cooler charge and have it come on later. Those headers keep your ground clearance up and would really work well to pipe up for a turbo. There's a lot of discussion on the SVX threads about proper tuning for a turbo, so investigate thoroughly.
I'm still jazzed about Chris' intake flip and how well everything fits! It sounds great and kicks him in the seat down the road - that's what it's all about!! (IMG:style_emoticons/default/aktion035.gif)

[flmont]

Yea,..ahh No turbo stuff for me,..I cant do all the fab work that's needed,.But hell ya that would be fun,..I would have to learn how to drive a car with that much power,..Iam thinking z32,injectors,and what ever type of ECU needed to run all that,..and maybe cams,..as I say if its worth the trouble...I gotta get started first,..!!

[76-914]

When compared with a 4 banger, 6's are like Poontang. Any damned 6 you install will be a thrill whether it be a Porsche 2.0, a 3.6 Subaru or anything in between. Just remember that the worst piece you ever had was wonderful and it will be the same with a 6. (IMG:style_emoticons/default/beerchug.gif)

[flmont]

and I remember my 1st,...So Iam with U on that,..!!!

[mgp4591]

Another question Chris - with the intake flipped, do you get more induction sound in the cabin? That may not be a bad thing unless it's way too loud. Just a little extra whine and/or wooshing sound on acceleration may be better for getting your blood going!