 Best N/A performance mods? |
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 18 Sep 2003, 08:03 PM
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#1
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Rank: RB20DE  Posts: 16 Joined: 6th September, 2003 Trader Rating : 0  |
What are the best mods to do to an N/A RB20 or RB25 for a decent performance boost? And please no one say Turbs... lol
Any ideas welcome 
Cheers Krys |
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18 Sep 2003, 08:03 PM
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18 Sep 2003, 09:18 PM
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#2
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 Yellow Fever Posts: 10,616 Joined: 6th May, 2002 Trader Rating : 4 |
U said "Boost"
2.5 ince exhaust Extractors Access Blitz NA ECU better brakes for sure... -------------------- |
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19 Sep 2003, 04:29 PM
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#3
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 Rank: RB25DET Posts: 816 Joined: 2nd June, 2002 Trader Rating : 0 |
camshafts...
-------------------- Rocky beef is proper man beef!
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19 Sep 2003, 04:39 PM
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#4
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 Rank: RB25DET Posts: 1,489 Joined: 19th April, 2003 Trader Rating : 0 |
blueprint the engine
-------------------- CPS 15 - 165.5kw atw
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19 Sep 2003, 06:24 PM
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#5
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 Rank: RB25DE Posts: 112 Joined: 16th March, 2003 Trader Rating : 0 |
Hey PVA, you keep mentioning this Blitz NA ECU and I cant find em anywhere...
Any specs/details where to buy info on it? -------------------- [TV Insider] : Due to complaints by Holden that not enough Commodores were being shown on prime time TV, "World's Worst Drivers" can now be seen @ 7:30 weeknights on 7
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24 Sep 2003, 02:49 AM
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#6
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Rank: RB20E Posts: 1 Joined: 30th July, 2003 Trader Rating : 0 |
Hello everyone on Skyline NA forum. i'm new to this forum and i'm not based in Australia, infact Brunei to be exact.
anyway i'm not new to skylines, especially all RB25 NA's , from R32 till R34 models. Just to share some NA mods which has improved the performance on my R34: engine dept: 1. cat back Fujitsubo exhaust system (pipe dia 70mm) & twin 90mm tip 2. PIVOT ground wires & SARD electrical sweeper (more of electrical noise filter) 3. Fully synthetic engine oil 4. HKS metal flow pod with home made SS heat shield. handling dept : R34 APEXi Sport coil over (3.2k) & KYB Super Special shocks (4 rate adj.), APEXi R33 front strut. next expensive upgrade; FUJITSUBO extractor, fuel pressure regulator and probably SAFC ver 2. hope this flies... |
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24 Sep 2003, 03:27 AM
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#7
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 Rank: RB25DET Posts: 603 Joined: 4th February, 2003 Trader Rating : 10 |
Yeah Krys, jo34 has got it right. get it breathing (panel filter, extractors, exhaust) a good 5 or 10W synthetic oil and some ECU tweaking to adjust A/F ratios & ignition advance. I would do the mods in that order. If you want more responsiveness from the RB you could then look at a lightweight flywheel. If you're still hungry for power crack open the engine & replace the cams for a more aggressive profile,head porting,higher comp ratio. (this sort of work definitely requires programmable management).
I would love to see a kikass 31 packing a barking, lumpy, high comp RB25 - I reckon it would sound awesome & scare the shit out of unsuspecting people ahhh... so much fun. --------------------  "Hello world, I'm John Laws - you're a kent" GOOD TRADERS: FAT34, Amadeo, MrZac, Steve, SomeonestoleCC, Maxx, Nismo34, arm85, eliteblimpracer, skyguy61, Forged, Syphon, Pablo101, DJRIFT, Vidospace, Chi100188, Yavuz & a Darryl Eastlake HUUUUGE thanks to paulr33 for his powerFC FAQ |
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24 Sep 2003, 12:22 PM
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#8
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Yellow Fever Posts: 10,616 Joined: 6th May, 2002 Trader Rating : 4 |
QUOTE Originally posted by Darker
Hey PVA, you keep mentioning this Blitz NA ECU and I cant find em anywhere... Any specs/details where to buy info on it? my old GTS-4 had Access ECU by Blitz for RB25DE NA skylines... its remapped ECU for NA skylines... sorry no more infor other than that its better ECU from stock. search on Blitz web site... might get hits. cheers Joe -------------------- |
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24 Sep 2003, 04:56 PM
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#9
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 Rank: RB25DE Posts: 136 Joined: 22nd June, 2003 From: Albany, WA Car(s): R32 GTS Type-S Real Name: Phil Trader Rating : 0 |
It's probably already been said, but i think the Extractors are probably the best bet for immediate performance gain, that is really noticable. It might only make 4/5Kw differnece, but you can access the power heaps earlier. Even on my '32 RB20, it still makes it heaps easier to launch... and it sounds really cool..
Yet to put on a better intake system, but you can hear it draw now... sounds like its sucking through a drinking straw at the moment... also, rb26dett mentioned camshafts. Anyone know who in australia stocks cams for RB series engines? |
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25 Sep 2003, 10:43 PM
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#10
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Rank: RB20DE Posts: 16 Joined: 6th September, 2003 Trader Rating : 0 |
What would u guys go for, Pod or K&n panel filter. I've heard the panel filters give more power then a pod... true/false?
Also can anyone recommend an exhaust and extractor system for the narb25? I dont want drone... My 31 droned so much.... yeah importing an r33 atm so just getting ideas.... |
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28 Sep 2003, 11:20 AM
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#11
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 Rank: RB25DE Posts: 343 Joined: 25th July, 2003 From: Malaysia Car(s): Veilside R34 GTR Real Name: Kenny Trader Rating : 1 |
well ive read a comparison someone in the forum has done with both...
panel filters gave him better low end power...launching and mid range...however cruising along the freeway at higher speeds, where with the kind of air flowing, u will get cooler air and more of it with a pod, he made more top end power.. so i guess it all bears down to personal preference. low end/midrange or top end power -------------------- Drive a Skyline like it was yr last day.
Skyline's were made for the twisty stuff. Stupid journalists. |
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28 Sep 2003, 11:22 AM
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#12
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Rank: RB25DE Posts: 343 Joined: 25th July, 2003 From: Malaysia Car(s): Veilside R34 GTR Real Name: Kenny Trader Rating : 1 |
i also forgot to add...if yr a power kinda guy, whcih i am telling you, 7 out of 10 people are,
u might wanna reconsider the NA route. chk out the forums and see how many ppl have and are trying to turbo they're NA's or have sold it for a turbo skyline. the prices dont vary by much, in fact by dang, ive seen some turbo's goin for cheaper than an NA of an equal yr... prob an overboosted turbo but nevertheless, reconsider. 
just speakin frm experience IMHO -------------------- Drive a Skyline like it was yr last day.
Skyline's were made for the twisty stuff. Stupid journalists. |
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28 Sep 2003, 10:19 PM
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#13
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 Car-less Posts: 1,705 Joined: 3rd August, 2002 From: Melbourne Trader Rating : 8 |
Krys,
a pod makes a lot of noise but needs a proper cold air intake to work well. go the hks super drager exhuast especially for n/a's. its got a nice note but its not noisy. epa laughed when they tested it because it was so obviously legal. no drone, ever. it's expensive though at about 1500 brand new. -------------------- R33 rear hicas rack, perfect condition (I installed a lock bar) - $50
R33 rear swaybar mounts and bushes - $20 R33 Exhaust bracket (supports exhaust at cat converter, stops it moving around) - $20 Grey carpet - matches R33 boot carpet, perfect for subwoofers etc - $20 R33 clutch and pressure plate - $50 SOLD CAR NEED TO CLEAR |
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28 Sep 2003, 11:32 PM
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#14
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Rank: RB25DET Posts: 1,489 Joined: 19th April, 2003 Trader Rating : 0 |
just get a local made muffler, gives the horniest gruntiest sound, and chuck resonators on if u want quietness! i dont think japanese exhausts have any proven benefits over aussie made and the price difference is incredible! Pod filters dont really make too much noise, sounds sweet, i agree with greg on the cold air tho
-------------------- CPS 15 - 165.5kw atw
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29 Sep 2003, 01:21 AM
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#15
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Rank: RB25DE Posts: 136 Joined: 22nd June, 2003 From: Albany, WA Car(s): R32 GTS Type-S Real Name: Phil Trader Rating : 0 |
yep, nisomoman is dead on the money there... why buy Jap stuff when local is just as good? i was also wondering how you guys went about mounting CAIs. Greg, it sounds like you've done yours, howd it go?
and streamer, i think we all know that a turbo is the only way to get HUGE horsepower out of anything without 'cubes' but it's not just the initial purchase cost thats a problem for most people. and besides, whats wrong with being a little different, right guys? :-) (of course i mean different, in the nicest possible way) |
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29 Sep 2003, 02:07 AM
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#16
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Rank: RB25DE Posts: 343 Joined: 25th July, 2003 From: Malaysia Car(s): Veilside R34 GTR Real Name: Kenny Trader Rating : 1 |
i guess i agree with u and that was my initial feeling at the beginning although with time, it might change.
nevertheless...the final choice bears down to u(buyer) i guess... that was just my 2c IMHO -------------------- Drive a Skyline like it was yr last day.
Skyline's were made for the twisty stuff. Stupid journalists. |
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29 Sep 2003, 11:12 AM
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