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Old 04-03-2006, 02:18 AM   #1
powerlabs
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Default EJ207 Version8 / EJ205 Version5 Type RA hybrid page.

I imagine most of you know my Engine Swap page
Well, the JDM V5 WRX Type RA motor is no more... I am not mating those heads to a JDM V8 STI shotblock and using a VF22 turbocharger to feed the beast. I put together a page with all the pictures and specs on the project... It took 4 hours to make... I'd appreciate any comments you guys might have on it:

Enjoy!

Teaser picture:
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Old 04-03-2006, 10:50 AM   #2
Matt Monson
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Very cool site. And what you are currently doing is almost identical to what Hurley2.5 is doing. Only he has a v4 and is using a v7 block. But it's really the same hybrid for all intensive purposes. I think we are going to see more and more of these as the v1-v5 swaps people put in their cars wear out, with the cost of rebuilding a bottom end about the same, or more than, a good used v7/8 EJ207 bottom end...
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Old 04-03-2006, 11:04 AM   #3
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Thank you Matt, I really value your input.
Do you, or anyone else here, have any ideas what the completely different piston head design is going to do for my compression ratio? My engine already ran on the edge of knocking (I.E. it would retard ignition timing and lose power on 93 octane every time) and I am worried that the problem may worsen with this new combo.
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Old 04-03-2006, 11:29 AM   #4
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so no em change?
differnt compression+considerably larger and laggier turbo

i would want to at least watch it with a wide band befor you went whole crazy
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Old 04-03-2006, 11:55 AM   #5
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I have EGT, Wideband AFR and Knock Monitoring with storage.
Plus I can alter the Air/Fuel ratio as I see fit.
EM is not an option for me right now; its either standalone for over a grand, or a 20 hour drive + $590 for tuning.
However Scoobysteve than this same turbo with a MBC on his setup without any problems. And the VF22 only flows 50CFM more than my VF29 did. Its not that much bigger.
SUPPOSEDLY the compression hasn't been changed. That is something I would like to know for certain though.
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Old 04-03-2006, 02:20 PM   #6
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The thickness of the HG you used on reassembly would dictate that...
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Old 04-03-2006, 03:47 PM   #7
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I am using the stock STI head gasket, since Quirt Crawford convinced me not to use Cometics.
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Old 04-03-2006, 04:03 PM   #8
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what engine is that closed deck? EJ22? and that just brings up more questions like, are you using that somehow??
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Old 04-03-2006, 04:26 PM   #9
Matt Monson
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Quote:
Originally Posted by SubasaurusWrex
what engine is that closed deck? EJ22? and that just brings up more questions like, are you using that somehow??
You didn't even visit his site, did you?
1. the title clearly states it is an Ej207
2. the picture clearly shows a head gasket on the block
3. you don't pay attention...
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Old 04-03-2006, 05:07 PM   #10
Hurley 2.5 WRS
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yup doing this too

you should be alot closer on CR than i am due to you haveing a 207 head ans block (the regular WRXs were 207s over there back then werent they?)

i did a bunch of measuring to know if my CR would change.


BTW, what did quirt say to make you not want cometics? and what is the thickness of the STi gasket youre using and is it MLS.
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Old 04-03-2006, 06:13 PM   #11
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Nice job on the site. It's quite thorough & the pictures really help. I have a question about one of the wires that didn't find a home on the WRX ecu. B136:27 - 'Fuel Level Sensor'. I'm assuming your gas guage works, so I wonder what that sensor does. Maybe illuminate the 'low fuel indicator' light?

Anyway, thanks for documenting all the hard work.
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Old 04-03-2006, 11:50 PM   #12
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Quote:
Originally Posted by Diz
Nice job on the site. It's quite thorough & the pictures really help. I have a question about one of the wires that didn't find a home on the WRX ecu. B136:27 - 'Fuel Level Sensor'. I'm assuming your gas guage works, so I wonder what that sensor does. Maybe illuminate the 'low fuel indicator' light?

Anyway, thanks for documenting all the hard work.
I dunno... The low fuel indicator light works too!
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Old 04-04-2006, 12:03 AM   #13
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how thick is your new head gasket powerlabs?
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Old 04-04-2006, 12:17 AM   #14
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i did visit the site, i didnt realize you had the headgasket on there, i mean it's not like i havent slept for 30 hours or anything.
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Old 04-04-2006, 12:18 AM   #15
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Ops, double post.

Last edited by powerlabs; 04-04-2006 at 12:31 AM.
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Old 04-04-2006, 12:30 AM   #16
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Stock thickness. .041" I think? I could be wrong. The cometic one size up is 0.051" and it would drop comp from 9:1 down to 8.8:1
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Old 04-04-2006, 06:50 PM   #17
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that looks cool. Ive always liked your car and now it looks like its gonna be a lot better.
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Old 04-05-2006, 09:21 PM   #18
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I'm happy too Sam. Now I don't have to bolt together a big greasy mess.

Looking forward to it.

btw, thanks for the props on your website. I appreciate it.
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