dimitri02
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non turbo performance upgrades
Hey, i have a non turbo 1994 SW20 Bathurst mr2. I was wondering if there is anything i can do to improve the power of the car??
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just_ace
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Re:non turbo performance upgrades
2012/02/19 18:42:00
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basics as follows in principle.
1: hiflow K&N replacment panel filter
2: mandrel bent extractors into a hiflow cat and 2.25-2.5in exh with free flowing mufflers
3: camshafts starting from 264 dur hilift (gen3 na already have a 250dur IN cam)
4: ECU upgrade to get the most out of cam upgrade, stock ecu should cope with 264's but prob not with 272-300dur cams.
5: rebuild engine with high comp pistons, port work and increase valve sizes.
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Reddtarga
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Re:non turbo performance upgrades
2012/02/19 19:06:44
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dimitri02
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Re:non turbo performance upgrades
2012/02/19 23:37:43
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Thanks a lot on the tips, I ran 15.3 at eastern creek, Is that normal for a standard mr2.
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Senol
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Re:non turbo performance upgrades
2012/02/19 23:46:21
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And be prepared to bend over and dish out over $7000 lol. It all adds up :/
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MRTurbo
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Re:non turbo performance upgrades
2012/02/20 09:50:55
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15.3 sounds quick for an N/A, good work.
hard to get much more power out of an N/A, unless you're really passionate :P
1990 SW20 GT 3S-GTE Targa 2001 Honda CBR600F4i 
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Senol
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Re:non turbo performance upgrades
2012/02/21 01:08:58
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i got 15.8 before lsd and rebuild. 15.3 is very good.
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yellow mr2
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Re:non turbo performance upgrades
2012/07/06 01:10:22
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Ive got an 1995 bathurst n/a and have done a few mods heres a few things i recommend
Aries forge pistons
Stage 3 cams
Yamaha cylinder head
Port and polish
Ems stinger computer
Ferrari vales
After market air filter
These are just a few things i have in my car and it goes insane :) ..
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blacky83
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Re:non turbo performance upgrades
2012/07/06 02:20:36
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I always say it, but when there's a turbo engine that bolts directly in I don't see the point of working an NA motor. By the time you've got a full exhaust, decent intake, cams etc you could just buy a 3SGTE and still have more power.
If you're under restrictions of some sort, then put your money towards suspension. Springs, shocks, swaybar, bushes and tyres. I'd much rather a car with great suspension than an extra 40kw.
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MRTurbo
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Re:non turbo performance upgrades
2012/07/06 09:31:19
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^what he said
Whiteline front swaybar made a HUGE difference to mine. Negated the need for overly stiff coilovers.
1990 SW20 GT 3S-GTE Targa 2001 Honda CBR600F4i
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MR2QIK
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Re:non turbo performance upgrades
2012/07/06 09:53:29
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I'd go turbo, but if you just want to tinker cheaply beyond the usual intake/headers/exhaust you can add a plate to the plenum (common modification in Japan NA's). Additionally, have a bit of fun with some giggle gas (50 dry shot).
15.3 is actually quite respectable for an NA 3SGE.
MR2QIK - "The Little Car That Could"  320rwkw @ 19psi (pump fuel, no giggle gas) 11.96 @ 116mph (with 228rwkw)
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MRVirgin
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Re:non turbo performance upgrades
2012/07/06 09:56:35
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+1 to sorting out your suspension/chassis/brakes before you go chasing power out of a 3SGE.
What black93 is saying I think is true. It doesn't make sense to work an NA motor when there's a bolt in turbo replacement. Atleast in the $ - Kw department but if you love NA engines then fair enough.
just_ace's build list is spot on. But be prepared for it to cost a lot. I'd just get the panel filter and extractors, stop there, and then start saving for a V6/turbo swap.
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EssDub
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Re:non turbo performance upgrades
2012/07/06 10:29:45
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buy a red-top Beams 3SGE from NZ. Wire it in and then you win.
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MRVirgin
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Re:non turbo performance upgrades
2012/07/06 10:43:31
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Then supercharge it and shout far and wide of how great it is.
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MRTurbo
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Re:non turbo performance upgrades
2012/07/06 10:57:17
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MRVirgin
Then supercharge it and shout far and wide of how great it is.
GO SC!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!  
1990 SW20 GT 3S-GTE Targa 2001 Honda CBR600F4i
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