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Old 10-06-2010, 05:11 PM   #1
wrxftw14741
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Default Which h6 to get

i am just debating what h6 to put in my future car .....which i am hoping is a 2004 rs so i get low insurance ........but which h6 would you reccomend for ease of swap, reliability, best exhaust note and performance?......opinions and reasons would be GREAT!! ....i think ill have something really unique when im done
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Old 10-06-2010, 05:46 PM   #2
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EG33 is easier to put in...

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Old 10-06-2010, 05:51 PM   #3
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well with either swap.....will the tach still work cuz iv heard it wont
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Old 10-06-2010, 09:13 PM   #4
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oh boi....there is a whole long forum, here, that deals with JUST THIS kind of thing
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Old 10-06-2010, 10:39 PM   #5
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can u give a link cuz im pretty new
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Old 10-06-2010, 10:41 PM   #6
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ez36 would be pretty torquey
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Old 10-06-2010, 10:50 PM   #7
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ER27... haha nahh just kidding, go with the EG33
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Old 10-06-2010, 11:00 PM   #8
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Quote:
Originally Posted by wrxftw14741 View Post
i am just debating what h6 to put in my future car .....which i am hoping is a 2004 rs so i get low insurance ........but which h6 would you reccomend for ease of swap, reliability, best exhaust note and performance?......opinions and reasons would be GREAT!! ....i think ill have something really unique when im done
Put it in a GC/GM/GF Body Better power to weight ratio. (They go freaking fast!).

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well with either swap.....will the tach still work cuz iv heard it wont
It will work, but it looks like your revving out past 9k all the time .
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Old 10-06-2010, 11:02 PM   #9
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well im down to the ez30 or maby the new 3.6 ......cuz the eg33 weighs too much .....but any 1 know costs or how hard
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Old 10-06-2010, 11:32 PM   #10
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EG33 weighs too much? Where did you hear that? 100 lbs. more, that's it.

It's longer than most H6s that's it. It's essentially a 2.2 engine with an extra row of pistons...
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Old 10-06-2010, 11:51 PM   #11
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Originally Posted by Da-Risin-Smoke View Post
EG33 weighs too much? Where did you hear that? 100 lbs. more, that's it.

It's longer than most H6s that's it. It's essentially a 2.2 engine with an extra row of pistons...
The EG33 is a great engine. And you can get them *Cheap*. The guy I race with has I know at least 1 maybe 2 on the shelf for when this one goes.
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Old 10-06-2010, 11:52 PM   #12
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That will be my next project. If I ever get my STi swap done, I'm going to find a 2 door and do an cammed up or blown EG33 build.
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Old 10-07-2010, 12:39 AM   #13
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EG33 is the most fun.
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Old 10-07-2010, 03:52 PM   #14
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this is going to sound pretty stupid on my part but i really dont like the exhaust note of the eg33 and the ez30 is only 2 inches longer then an ej25......so i will feel more comfortable with the ez30r
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Old 10-07-2010, 09:27 PM   #15
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as you wish.
The EZ30R is not a wonderful motor, though.
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Old 10-07-2010, 09:41 PM   #16
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I believe it only has about 212 hp.
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Old 10-07-2010, 10:47 PM   #17
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The h6 from a 997 GT3 RS.
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Old 10-07-2010, 11:24 PM   #18
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The h6 from a 997 GT3 RS.
this^^^
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Old 10-08-2010, 12:57 PM   #19
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Originally Posted by Da-Risin-Smoke View Post
I believe it only has about 212 hp.
the older 1s had tht but the newer ones from around 08 have 250hp and around 220ft/lb
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Old 10-08-2010, 05:00 PM   #20
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There are a few different things you need to look into. I've been in the process of doing one for a few years, mostly getting everything else on my car ready for it but now it's finally done and i need buy one to start building this winter. You need to think about emissions requirements, what your plans are afterwords, if you are racing there could be class restrictions, also aftermarket parts and tuning will be different. I have a 04 rs and in Utah for me to pass emissions i need to have an engine the same year or newer. The EG33 in 92-96 is OBD I so that cause other obstacles, in 97 they switched to OBD II but it's the last year they made the EG so it's hard to find. The EZ30D is 00-04 and technically I can use any year engine but would need a 04+ ecu so when they do the OBD II test the ecu year is the same as the VIN on the car to pass emissions. The EZ30D is getting cheap and easier to find and is cable throttle so you don't have to worry about converting to the DBW. The EG33 is rated at 230 hp and has more options for building and tuning and is the cheapest but will require body modifications to fit and a custom radiator, people have used a 92 Saab 900 or a 90's jeep Cherokee one but most recommend a custom built. The EZ30D is rated at 220 hp and will fit without body modification and just slim fans and radiator hose trimming give it enough room. The EZ30R is rated at 245 hp and is DBW so you sill need convert to that but that isn't bad since you will have to have the matching ecu, wiring and immobilizers stuff so really it's just a gas pedal that is DBW and not cable. All have their benefits but you need to make sure you can pass emissions and decide on if you want to build it later. I'm still in the air on mine since i think i have a way around emissions so the EG is sounding better but I'll just keep looking and researching. Things might change and more support may come out for the EZ30R and maybe since they are getting older the price will come down. I just need more power now, my car is slow with the new 6-speed.

Last edited by aclver1; 10-08-2010 at 05:09 PM.
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Old 10-09-2010, 11:01 AM   #21
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Quote:
Originally Posted by wrxftw14741 View Post
i am just debating what h6 to put in my future car .....which i am hoping is a 2004 rs so i get low insurance ........but which h6 would you reccomend for ease of swap, reliability, best exhaust note and performance?......opinions and reasons would be GREAT!! ....i think ill have something really unique when im done
Go here. Read for a long time.

Quote:
Originally Posted by Carter View Post
EG33 is easier to put in...
Can you explain why you think that? The added length means it is most definitely not the easiest to physically install in the engine bay. And the '01-04 EZ30 wouldn't be any harder than an EG33 to wire in, since you can use the factory ECU in either case.

Quote:
Originally Posted by wrxftw14741 View Post
well im down to the ez30 or maby the new 3.6 ......cuz the eg33 weighs too much
How much does the EG33 weigh and how much does the EZ30 or EZ30R weigh? I'm curious where you found accurate weight numbers for the EZ30s.

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Originally Posted by wrxftw14741 View Post
.....but any 1 know costs or how hard
Again, see the link I posted above.

Quote:
Originally Posted by XanRules View Post
EG33 is the most fun.
Quote:
Originally Posted by XanRules View Post
as you wish.
The EZ30R is not a wonderful motor, though.
Wow, really bringin' the tech to this discussion!

Quote:
Originally Posted by wrxftw14741 View Post
this is going to sound pretty stupid on my part but i really dont like the exhaust note of the eg33 and the ez30 is only 2 inches longer then an ej25......so i will feel more comfortable with the ez30r
Are you sure the exhaust note of the EZ30R is going to sound any different? The exhaust configuration is going to be identical, so the only aspect of the engine design that might change the exhaust note is the firing order. What's the firing order of the two engines?

Quote:
Originally Posted by Da-Risin-Smoke View Post
I believe it only has about 212 hp.
The original '01-04 EZ30s were rated at 212hp and 210ft-lb. The '05 EZ30R was rated at 250hp and 219ft-lb. (Although peak torque was only 9ft-lb higher, the torque band was quite a bit wider. Somewhere I used to have the engine output curves from the respective brochures, but I can't find it now.) Note that the 212/210 and 250/219 ratings were using the same test procedure. In 2007 the EZ30R numbers dropped to 243hp and 215ft-lb when the testing methodology used throughout the automotive industry changed.

Quote:
Originally Posted by aclver1 View Post
There are a few different things you need to look into. ...
That's actually a pretty good summary of things. A couple numbers are off, but close enough for government work.

Pat Olsen
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Old 10-09-2010, 06:27 PM   #22
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thanks pat olsen.......i love good input
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