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  #21  
Old 05-21-2014, 04:28 PM
Def Def is offline
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You can run 11.0:1 on 91. I wouldn't go any higher though.

Have you thought about E85? It's stupid easy on an NA engine, and you could run whatever CR you wanted and never have to worry about knock. It's also cheap to do the fueling on an NA engine.

Either 480 cc S15 SR20DET injectors or 525 cc yellow STi sidefeeds would be plenty.
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  #22  
Old 05-21-2014, 04:47 PM
Payupv8 Payupv8 is offline
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I have thought about e85 there isn't any locally the next town
Over has e85 but that's like 40-45min away this car is gonna be more of a
Street car. I did a little research on putting a ve head on a sr20de block
Don't really want to spend the cash on the mazzworks conversion. I'll do some
More research on header design and I can tig one up. Iam sure there are some
Header design programs out there. I mean if I went the ve head on the de block I would
Have to buy a whole complete swap then get a ve head
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  #23  
Old 05-21-2014, 04:57 PM
Def Def is offline
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The Mazworx conversion is pretty much the most $$$ way to do it.

A good condition late SR20DE RWD swap goes for less than $1k shipped, and includes a trans and wiring harness. SR20VE heads are like $400-500ish. Pretty cheap when you're talking about built engines and headwork.

If you're talking about dropping serious $$$ into the engine, look at the total cost to get your power goals, and what the end result is. Don't just focus on one specific cost at some point in time. The way I see it, if you're going to build an engine, the VE omits pretty $$$ headwork and gives you a 240+ rwhp capable engine. Probably 200-220 rwhp not building it due to needing to stay a bit lighter on revs, less displacement, and less compression.

The KA will take a lot of coaxing to pull up to 200 rwhp, so don't forget the built engine, headwork, intake manifold etc.


Overall I see the VE possibly costing a hair more, but being more powerful and having more potential for power.
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  #24  
Old 05-21-2014, 06:07 PM
Payupv8 Payupv8 is offline
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What all does it take to put the ve head on the de block is it
A straight swap? Maybe I'll just put the ka in my 510 wagon
And build a ve/de for my 4 door
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  #25  
Old 05-21-2014, 07:25 PM
Def Def is offline
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Relocate VVL solenoids (if you have firewall clearance), run 20V CAS and clearance firewall (in an S chassis), flip intake manifold plenum, block off oil port on block with NPT fitting. Maybe need a little work on the water outlet coming out of the block behind the thermostat.

Maybe a few other minor details, but that covers the big points.

It's not that difficult of a swap really. If you've got more firewall clearance in your 510 then it's cake because that's half the "problem."
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  #26  
Old 05-21-2014, 08:45 PM
Payupv8 Payupv8 is offline
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I've only seen on ve/de swapped 510 it had itb's and it was
On the internet never seen it in person. It was a pretty rad looking
setup it had a haltech ecu (stand alone) I think with ls1 coils
not sure what he did for a cas. Iam not sure about how much
More clearance fire wall clearance a 510 has than a s13. But I could probably
Figure it out. Iam not very fimiliar with the sr like Iam with a ka
I have rebuilt a ka and swapped it in a 510 before.
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  #27  
Old 05-21-2014, 09:08 PM
Def Def is offline
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Think of the VE swap this way - 90% of the work you do is because the head is meant to go on a FWD block and you're turning it 90 degrees for a RWD block. The P12 CAS(or distributor for the P11 head) and VVL solenoids bolt on the back of the head when turned, so they're between the head and firewall. The TB on the intake manifold faces the firewall as well.

So once you get that stuff to fit and get sorted it's very simple really, just a few little clearance things, and blocking off a port or two on the block/head that don't line up (most do).

You can run a stock ECU with a P12 CAS if it's a DET ECU (CAS is the same). I'm not sure what the distributor ECUs want to see for cam angle sensor data, but if you want to run ITBs you weren't going to run a stock ECU anyway more than likely. You can use a simple window switch for VVL if you're running a stock DE/DET ECU and MAF though.
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  #28  
Old 05-24-2014, 06:16 PM
Payupv8 Payupv8 is offline
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So after putting some thought into I think the ve/de swap is the best bang for my buck
I called rebello and he quoted me 2500 to fully port and polish my head and cams and valves. So I feel like I could build a ve/de swap for just the price of the head work alone.

My other question is can I do away with the cas and run a stand alone setup like
aem ems? Iam just concerned with fire wall clearance
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  #29  
Old 05-24-2014, 08:55 PM
Def Def is offline
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That's pretty much what I was thinking when you mentioned having someone professionally port your head...

Yes, there are a few trigger wheels that run off the front of the exhaust cam and use a hall effect sensor to pick off triggers. TAARKs makes one I think, Mazworx too (although I don't like their solution due to machining the head). Tower240SX here has a nice design - not sure if he made extras.


What sort of EMS you planning to run? I could probably save you a few bucks on anything AEM. I've actually got an Infinity 6 incoming right now.
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  #30  
Old 05-24-2014, 10:02 PM
Matt93SE Matt93SE is offline
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Rebello does nice work but they're insanely expensive. Call a local shop and ask what they want. Probably looking at $750..
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