The 914 conversion, 3.3 Ltr suby upgrade Options

[flmont]

where can I find exhaust flanges,..I need 2 flanges ,..to fit my 911 banana style muffler,..the 2 in 1 out type,..not sure how this will sound,..should I also install,..something before the muffler,..I was just going to run straight pipes into it,.??? FM

[mgp4591]

where can I find exhaust flanges,..I need 2 flanges ,..to fit my 911 banana style muffler,..the 2 in 1 out type,..not sure how this will sound,..should I also install,..something before the muffler,..I was just going to run straight pipes into it,.??? FM

Start with FLAPS, after that the internet will steer your search. Consider the flow capabilities of the banana muffler - if you feel it'll be restrictive, you'll want to go bigger to use all of the engines power. Also, that engine will rev to 7k which will flow LOTS of air so take that into consideration too.

[flmont]

meaning I should not use anything before the 911 muffler keep straight pipes...

[mgp4591]

That will keep your backpressure to a minimum and you can judge the sound quality from there. If the seat of the pants feeling is good for you and it sounds cool, go ahead and keep it. If not, you can go in another direction depending on what the issues are. I've already got plans for my 3.3 in the exhaust dept. and I've still got some figuring to do. The banana might just be what you want and I'd love to hear it when you've got it running!

[flmont]

Yes,..No problem with that,..I will certainly get to ya,...Frank

[914forme]

You will need a different muffler, as there is just no room back there for the banana, once you go Subaru trans. I guess you could highly modify the banana, anything is possible,,

[76-914]

This will give you an idea of how much room you'll have to work with.

[mgp4591]

A small hijack here - Kent, what axles are you using?

[914forme]

Subaru Inside and some combo of outside Porsche CVs. I am sure it is in his build thread.The Discussion starts at post 220.

"Inner CV = FEMALE Subie (2002-2004) which is fine for you because your trans already has stub axles so it's set up for female CVs
Axle = Ians or re-splined 914 axle on one side to accept said Subie CV
Outer = the stock 914 CV....or you could upgrade to 944 if you pop a stock CV or two."

[mgp4591]

Sometimes asking is faster than research - Thanks!

[76-914]

A small hijack here - Kent, what axles are you using?

The stock 914 half shafts that were cut to length and re-splined on the inboard end. IIRC, they're good to 270hp. (IMG:style_emoticons/default/beerchug.gif)

[mgp4591]

A small hijack here - Kent, what axles are you using?

The stock 914 half shafts that were cut to length and re-splined on the inboard end. IIRC, they're good to 270hp. (IMG:style_emoticons/default/beerchug.gif)

Nice - so do you have full travel in the tulip on the Subie side? (IMG:style_emoticons/default/idea.gif)

[76-914]

A small hijack here - Kent, what axles are you using?

The stock 914 half shafts that were cut to length and re-splined on the inboard end. IIRC, they're good to 270hp. (IMG:style_emoticons/default/beerchug.gif)

Nice - so do you have full travel in the tulip on the Subie side? (IMG:style_emoticons/default/idea.gif)

Not sure about the question? The output flanges are centered horizontally and vertically with the wheel centers when the car is sitting on the ground. The shafts were cut so that there is about 1/16" gap to slip them on. And that is when both CV's are compressed all the way towards the wheel. It's a tight fit but I haven't ever had one pop out or jump off. There are a few conversions that experienced this dilemma. If that didn't answer the question LMK. (IMG:style_emoticons/default/beerchug.gif) Kent

[flmont]

My next quest....is setting up the water system,..I would like to know where do ya get the reducers for the hoses,..I think,. I would keep factory hose and then plumb from my 3/4 " steel line to the factory inlet and outlet hose's correct ??? Thanks, as always,..!!!! Frank

[mgp4591]

My next quest....is setting up the water system,..I would like to know where do ya get the reducers for the hoses,..I think,. I would keep factory hose and then plumb from my 3/4 " steel line to the factory inlet and outlet hose's correct ??? Thanks, as always,..!!!! Frank

I think that was answered in another recent post somewhere... Jags that run?? Sounds like the site.

[Chris H.]

My next quest....is setting up the water system,..I would like to know where do ya get the reducers for the hoses,..I think,. I would keep factory hose and then plumb from my 3/4 " steel line to the factory inlet and outlet hose's correct ??? Thanks, as always,..!!!! Frank

Frank,

I would not use 3/4 line to your radiator. That's too small. Since you are planning a 300hp engine I would consider 1" hot and 1.25" cold, which is what Renegade Hybrids uses on its setup for all engines including V8s. I went to 1.25" for both sides on mine and it does take a while to warm up.

Yes, Jags That Run has the adapters. Kinda hard to find where they are. Call them, don't order online.

Hose Splicers

Just remember it HAS TO BE on the list or they will have to make it. That would take forever. You'd only need two with 1" hot and 1.25" cold. You'd have to stretch the cold lines but it's not that hard.

[flmont]

Great Thanks,..!!!,....Well, I had someone install steel line's under the car,..He has a chevy V8,.and his is set up the same way,.. and he said his temps are fine even in the summer,..Ill get a real measurement,..on those line's,..But I do have a large 3 row radiator .??

[76-914]

SS or steel? If steel I would recommend using some anode plugs in your cooling system. (IMG:style_emoticons/default/beerchug.gif)

[flmont]

Steel,..he's had them on his for about 6 yrs I think,..how would I install anode plugs,....

P.S.,.Harness may be completed soon,..he started it today...!!

[Chris H.]

Yeah measure those Frank. Don't think a V8 would do well at all with 3/4 lines. Probably 1" or larger.

Great news on the harness. You're skipping the hardest part. That's a good thing!