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Old 04-22-2004, 11:33 PM   #1
moss
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Default STi V6 swap vs. STi V7 swap

Ok, so I'm having debates here... which would be the better swap for my car?

STi V6, possibly R/RA swap, full drivetrain

OR

'02 STi V7 full drivetrain...

Advantages, distadvantages and why I should go with that particular swap.

If it matters my car is a MY01

keith
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Old 04-23-2004, 01:22 AM   #2
Soon2Bgreat
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get a ver7. Avcs, better heads. Bigger turbo. I told you long ago v7. Get it baller.
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Old 04-23-2004, 01:27 AM   #3
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I don't need your input or Dave's I know what you guys say!
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Old 04-23-2004, 02:27 AM   #4
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go with the V7 and PM me about where you get your stuff, cause I want to do the same
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Old 04-24-2004, 01:39 AM   #5
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get one of Quirt's engines.
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Old 04-24-2004, 01:57 AM   #6
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Get what you can find. Ver 7 heads better then Ver 6 RA??? Show me! AVCS is not all people make it out to be, just look at some dynos w/AVCS and without. The Ver 6 has a VF28 and the Ver 7 a VF30. They are very similar turbos but i think the VF28 is a better all round turbo, the vf30 only flows a few more CFM but the VF28 is ball bearing. Both engines have the same power making potential. RA gears kick azz! Will the Ver 7 intercooler fit in a GC?
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Old 04-24-2004, 03:12 AM   #7
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Quote:
Originally posted by Scoobie Steve
Get what you can find. Ver 7 heads better then Ver 6 RA??? Show me! AVCS is not all people make it out to be, just look at some dynos w/AVCS and without. The Ver 6 has a VF28 and the Ver 7 a VF30. They are very similar turbos but i think the VF28 is a better all round turbo, the vf30 only flows a few more CFM but the VF28 is ball bearing. Both engines have the same power making potential. RA gears kick azz! Will the Ver 7 intercooler fit in a GC?
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Old 04-24-2004, 12:14 PM   #8
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Quote:
Originally posted by Scoobie Steve
Get what you can find. Ver 7 heads better then Ver 6 RA??? Show me! AVCS is not all people make it out to be, just look at some dynos w/AVCS and without. The Ver 6 has a VF28 and the Ver 7 a VF30. They are very similar turbos but i think the VF28 is a better all round turbo, the vf30 only flows a few more CFM but the VF28 is ball bearing. Both engines have the same power making potential. RA gears kick azz! Will the Ver 7 intercooler fit in a GC?
I have a Version 6 STI RA swap, and I love it, but if I was doing it from scratch, I would probably go with the version 7. What's not to like about the improvements? AVCS is great w/ better tq, it has the semi-closed deck where the Ver. 6 is an open deck design.

As for the VF-28, yeah, it's a great all around turbo and is probably ideal for a good all around street car / weekend auto-x car. Mine will be replaced soon and put into my brothers WRX.

I would go with the Ver.7... either that or get a wrx engine and a setup from Axis.

Oh, one more thing - if you are planning to do any ECU tuning, I would def. go with the Ver.7 You will have a much easier time finding tuners in the USA who can do ECUTek reflashes. The Version 6 ECU requires the Flash99 version of the ECUTek reflash software and as of right now, only a handful of people in the USA can tune them. Of couse, you could always go standalone or fit a piggyback of sorts, but finding support is much harder for the older ECUs (in the USA) than the newer ECUs, and standalone setups are $$$.

Hope this helps!
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Old 04-26-2004, 03:08 PM   #9
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STi V8 twin scroll
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Old 04-26-2004, 06:28 PM   #10
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yea, but wouldnt that be a PITA?

keith
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Old 04-26-2004, 06:48 PM   #11
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why?
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Old 04-26-2004, 06:54 PM   #12
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more different wiring than the V7? No idea... I have no access to a V8 though... only V7
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Old 04-26-2004, 08:31 PM   #13
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the wiring isint that much different, not at all some say. Still need to do more research on that.
V.7 is newer and better, dont get no vf28 crap .
V.6 came in GC8's so it might be easier, that would be the only reason why i would see myself doing a V.6 swap.

If there the same price get V.7. If Version 7 is more, still get version 7 .
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Old 04-27-2004, 01:47 AM   #14
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YA buy the ver 7, its a much better engine Dude just buy something, so many talkers here i cant stand it.
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Old 04-27-2004, 01:51 AM   #15
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I think I'm just going to buy whatever I get a good deal on I'm looking to get the 6spd though, just to be "cool"

keith
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Old 04-27-2004, 01:12 PM   #16
AndyM
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check out this thread. Those looks like some pretty good prices complete motors too!

http://forums.nasioc.com/forums/show...hreadid=547831
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Old 04-27-2004, 02:55 PM   #17
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Quote:
Originally posted by Scoobie Steve
YA buy the ver 7, its a much better engine Dude just buy something, so many talkers here i cant stand it.
ohh yes the version 6 engine is god, its far superior to the semi-closed version 7 engine in every possible way. All hail Scoobie Steve, with his powerfull version 6 engine
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Old 04-27-2004, 08:56 PM   #18
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Quote:
Originally posted by ImprezaRSfan!
ohh yes the version 6 engine is god, its far superior to the semi-closed version 7 engine in every possible way. All hail Scoobie Steve, with his powerfull version 6 engine
Quote:
Originally posted by Scoobie Steve
Get what you can find. Ver 7 heads better then Ver 6 RA??? Show me! AVCS is not all people make it out to be, just look at some dynos w/AVCS and without. The Ver 6 has a VF28 and the Ver 7 a VF30. They are very similar turbos but i think the VF28 is a better all round turbo, the vf30 only flows a few more CFM but the VF28 is ball bearing. Both engines have the same power making potential. RA gears kick azz! Will the Ver 7 intercooler fit in a GC?

Heads... ok here you go.

Small port, some v6s had them, some didnt


Large port all v 7 had them. The spec C had even bigger, and the spec C also has the better cam. The v7 cam is flat and lame.... I dont know anything about the v6 cam.



Fact is the difference between the ver6 and ver7 heads is just about null. The block is an open deck on the ver 6? I didnt know that..... But the ver6 will have a lot more miles and the lamer turbo. I would go ver 7. Lower miles, better turbo, easyer to tune, and you know whats inside the block. Besides the 6 speed is so much better.
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Old 04-27-2004, 10:13 PM   #19
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Quote:
Originally posted by totoherbs




Fact is the difference between the ver6 and ver7 heads is just about null. The block is an open deck on the ver 6? I didnt know that..... But the ver6 will have a lot more miles and the lamer turbo. I would go ver 7. Lower miles, better turbo, easyer to tune, and you know whats inside the block. Besides the 6 speed is so much better.
.

well said
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Old 04-28-2004, 01:47 AM   #20
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ImprezaRSfan! maybe you cant read so well. In my first post I said get what you can find. I NEVER said buy a Ver 6 engine. I NEVER said the ver 6 is better. You are putting words in my mouth. I said the Ver 7 heads are NO better then the Ver 6 RA. totoherbs posted a picture of the small port USDM wrx heads. If you read the post that he got those pictures from you will find out in fact the Ver 6 RA heads have the large ports just like the Ver 7.

ImprezaRSfan! you are the one that is saying the Ver 7 is superior and pushing that he buys a "Newer and better" Ver 7.

totoherbs i think its funny you think just because an engine is a year newer it has lower miles. I bet you beleive that all JDM engines have under 20k too! JK

Last edited by Scoobie Steve; 04-28-2004 at 07:30 PM.
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Old 04-28-2004, 01:50 AM   #21
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i don't know what to say...
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Old 04-28-2004, 05:12 PM   #22
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Quote:
Originally posted by Scoobie Steve
ImprezaRSfan! maybe you cant read so well. In my first post I said get what you can find. I NEVER said buy a Ver 6 engine. I NEVER said the ver 6 is better. You are putting words in my mouth. I said the Ver 7 heads are NO better then the Ver 6 RA. totoherbs posted a picture of the small port USDM wrx heads. If you read the post that he got those pictures from you will find out in fact the Ver 6 RA heads have the large ports just like the Ver 7.

ImprezaRSfan! you are the one that is saying the Ver 7 is superior and pushing that he buys a "Newer and better" Ver 7.

LOL i think its funny you think just because an engine is a year newer it has lower miles. I bet you beleive that all JDM engines have under 20k too!
Moss never said anything about mileage. If you had the chance to get a 2001 engine or a 2002 engine, not mentioning anything about mileage, wouldnt you take the newer one? Its physically been out in the real world for a year less, making it newer. I know i would take it.

Every version sti engine is better than the last, otherwise the newest version 8 sti would be a 10 year old design, not a brand new design with a twinscroll setup, nitrided crank, better oiling, revised intake manifold, tighter tolerances with hypereuretic pistons, etc etc.

Moss just asked which one has its advantages/disadvantages.
V.6 - price ?
V.7 - many improvements/changes.

As the mazda crowd says..... The 7 never losses.
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Old 04-28-2004, 06:17 PM   #23
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Never mentioned mileage, because the mileage is about the same for both... the V8 swap would be an idea, but pricing it kind of out of the way right now. I know gruppe-s has them for like $4700 but thats not even including the 6spd

keith
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Old 04-28-2004, 06:21 PM   #24
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Quote:
Originally posted by moss
Never mentioned mileage, because the mileage is about the same for both... the V8 swap would be an idea, but pricing it kind of out of the way right now. I know gruppe-s has them for like $4700 but thats not even including the 6spd

keith
Intresting factoid of the ver 7 vs ver8; the ver 7 runs a hotter spark plug in number 4. While the ver 8 runs all the same plugs, but has a different intake manifold.
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Old 04-28-2004, 06:38 PM   #25
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do they all run? can I run boost? will it be faster than my RS currently is? OK THEN

keith
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