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| 200sx Tuning | |
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| Tweet Topic Started: Feb 12 2007, 07:25 PM (642 Views) | |
| MR 8 | Feb 12 2007, 07:25 PM Post #1 |
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Here is one for you budding 200 sx owners lurking out there... I have been reading Jap performance this month (mar 07) and there is an article on P64 about an S14. Ok aside from the fact that it seems all it takes to get a feature in these damn jap mags now is to import a pre tuned car.... this particular S14 apparently runs 430 bhp. Now looking at the mod side of things there is a resonable amount of work done... but enough for that power? I thought the bottem ends were resonable but I didnt think they could handle that much power as I was under the impression that once they get up to around 300ish they need to start thinking about proper enforced bottem ends and the equivelent monetry outlay to make sure it doesnt go bang. Is this the case? Or has this guy just wound up the boost or is JP printing maxpower style power figures? Engine spec is as follows; Nissan Sr20 engine Ported and polished head 256/264 cams with solid lifters and springs HKS GTRS turbo Sard 550 injectors Skyline GTR fuel pump 300zx mass sensor Apexi exhaust, downpipe and center FMIC Sard cold air intake 1.3 bar boost What boost do these cars run decent power at usually? I mean 300/350 etc |
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| toyotagtturbo | Feb 12 2007, 08:14 PM Post #2 |
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Doesn't have a home to go to!
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that dosnt sound right to me, should be around 330-350bhp max with that boost and its pretty unsafe to take it above 380 on standard internals, but best check that with someone who knows the engine a little better |
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Apexi Power FC, Apexi Commander, WEPR hyrid TD04 turbo kit, Pauter rods, Ross pistons, speedvision 265 cams, speedvision valve springs, Greddy oil cooler, Greddy oil filter relocation, 550cc injectors, WEPR FMIC, Ally Rad, Tial sport external wastegate, Blitz supersound DV, RSR exhaust system, Screamer pipe, Bride bucketseat, willans harness, 8 point cusco rollcage, 1.4mm Headgasket, ARP 2000 headbolts, Modified rocker cover with 2 breathers, Walbro Uprated Fuel Pump, ECV, RRFPR, Lightweight pully, Magnecor 8.5mm Spark Leads, , NGK Iridium Spark Plugs Heat Range 9, 9” rad fan, Air con and interior removed, GAB fully adj coilovers, Adj top mounts, TRD 1.5 diff, Exedy paddle clutch, TRD mounts, Whiteline Anti lift kit, Whiteline Panhard rod, Whiteline 24mm ARB, Whiteline adj rear ARB, Cusco lower arm bar, Adj front strut, 3point rear strut, cone filter, fuel pressure gauge, 3.5bar map sensor, no interior, alloys, k-sport 6pot calipers, updated pads, discs and braided lines Brakes: K-sport 6 pot calipers, Grooved discs, Braided lines Interior: Blitz dual EBC, GReddy Data Link Oil temp, GReddy Data Link AFR, Boost gauge, RPM gauge | |
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| Harvey | Feb 12 2007, 09:07 PM Post #3 |
Newbie
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Yeah 1.3bar sounds a little low for that much power, but i guess it would depend on the turbo? As for internals, could be a case it has had internal work done but owner doesnt know if it was imported modified? |
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| MR 8 | Feb 12 2007, 09:09 PM Post #4 |
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The owner stripped it down, enough to know the cames were Tomei... so I reckon he must have gone as far as the bottem end. You are right though bigger turbo and lower boost pressure to make power, but i just cant see how a stock bottom end would take that. If he has gone solid lifters and springs I would imagine that points to higher revving strength so would have expected some work to be done? |
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| Stevey | Feb 12 2007, 10:44 PM Post #5 |
Drift Slag
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TBH ive been reading into and about 200sx hitting that 400 bhp mark , And for that small list of specs , I doubt his car will last long , Dont get me wrong u probaly could get that sort of power from it with those mods The Cams and solid lifters are all good , But without uprated conrods and Pistons i was under the impression 350 was pushing your luck , Neva mind 430 Plus there is no mention of a uprated gearbox which ive been told very rarely last long over 350 bhp . He may of just over boosted it for the RR and turned it back down after , Brave Man I have a friend (Mark) running 350 on standard internals and standard gearbox , He's considing new Uprated pistons and conrods . I know of a man thats running 350 bhp from i believe is 17-18 psi |
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200sx S14A - Stage 3A - 350bhp - Sold Rx7 FD3S - Single Turbo - 400bhp - Sold Rx8 231 - Run about - 231bhp - Sold Subaru Impreza - Monster - 346BHP - Sold 200sx S13 - Budget Toy - 199.1bhp Project Mini - 50% Done | |
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| MR 8 | Feb 12 2007, 11:18 PM Post #6 |
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Hmm exactly what I was thinking... they also got Julians 260bhp DC2 wrong as well Hmm... does JP add BHP to the cars they feature to increase sales..... |
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| Stevey | Feb 12 2007, 11:21 PM Post #7 |
Drift Slag
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JP is like viper stripes , U get 20bhp per stripe + If you mix neons with it , U get 20bhp for neons + a 10bhp bonus per tube Wat more could u want
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200sx S14A - Stage 3A - 350bhp - Sold Rx7 FD3S - Single Turbo - 400bhp - Sold Rx8 231 - Run about - 231bhp - Sold Subaru Impreza - Monster - 346BHP - Sold 200sx S13 - Budget Toy - 199.1bhp Project Mini - 50% Done | |
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| MR 8 | Feb 12 2007, 11:26 PM Post #8 |
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Or the owners tell tall stories as they got the article about James drag monster E8 pretty much bang on the nail
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| driftingphoenix | Feb 13 2007, 05:02 PM Post #9 |
Doesn't have a home to go to!
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the bottom end of the s14 is stronger than the s13 and can take the power, s13 bottom end shells are made of chocolate, infact they are the leftovers from last easter. |
| [GK-customfield]Dave[customfield-GK] | |
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| JasonTurbo | Mar 12 2007, 12:42 AM Post #10 |
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Here to stay
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I'll add my knowledge which I tea-leafed from the 200sx forums. Apparently the bottom end is good for about 500bhp on stock internals from what I read. It's mostly the yanks that have been doing this sort of ludacris tuning. Infact the stock engine complete is roughly good for 400bhp odd however it's probably not the most easiest task to perform. You get to a stage where it would actually cost more and be alot more hassle just to keep the stock internals/cams/etc. HOWEVER the gearbox aint nearly as good as the engine so best be warned. Although TBH they aint too bad from what I've seen just aslong as the power delivery is nice and smooth and you don't treat them like sh*t. |
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| justbutts | Apr 11 2007, 01:26 PM Post #11 |
Doesn't have a home to go to!
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its my car mine has been mapped with no det by jez at horsham developments at Surrey rolling road current spec is apexi airfilter z32 afm 63mm, 45 degree inlet pipe Apex type 2 FMIC HKS ssqv Nismo 555 Walbro 255ltr fuel pump Standard FPR Denso ik24 Standard cams Standard head gasket Standard bottom end Fidanza flywheel RPS street max cluch Horsham development stage 3a chip custom mapped Apex tubular manifold turbo dynamics Gt2871r .52 trim / .64 a/r turbo with standard compressor housing standard turbo elbow full Apex turbo elbow back s/s de cat exhuast system 347bhp/359ftlbs @ fly 295 BHP @ Wheels does the job very well
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[GK-customfield]mark[customfield-GK]Horsham Developments stage 3a (GT2871r) 363bhp @ 1.4bar nissan 200sx s14a
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| _bo0st_ | May 10 2007, 01:13 AM Post #12 |
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Nothin wrong with ca18det's the storys about 'chocolate' big ends boil down to abused engines, generally not given the regular oil changes they require.Ive been happily running 270ish bhp on my 'chocolate' bearings for the past year
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| 20vLevin | May 10 2007, 08:19 AM Post #13 |
Doesn't have a home to go to!
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happily!!! thats why you driving a nova yes! |
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AE111 BZG 164.5BHP Open Throttle Bodies, Hks Racing Manifold, Decat, Kakimoto Cat Back, Sun HT Leads, Tein Coilovers, Trd Rad Cap and Air Diversion Plate Soon to be added Tom's lightend Flywheel. www.levinoc.com | |
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| Ian | May 10 2007, 09:32 AM Post #14 |
Part of team impreza
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the drift works s14 was running well over 400 bhp on a stand engine and head gasket |
| im not lazy im just chilled | |
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| amnesia | May 10 2007, 10:06 AM Post #15 |
There's no replacement for displacement !
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As already said, the Yanks have got over 500BHP on the stock bottom end. There are several cars on SXOC with more than 400BHP - the engines are very strong if well maintained, but the gearbox is never going to cope with 400BHP for very long. 430BHP on SARD 550 injectors is also asking for trouble, unless he's running higher boost pressure (no mention of an adjustable FPR in the spec). I only have forged pistons, balanced crank, 1.8mm metal HG, 555s etc and could easily take 400BHP+ with the right turbo (mucho dollar though). The HKS GTRS also comes in various a/r specs AFAIK so 1.3 bar could be enough, but it would all be at the top end, with stacks of lag. |
| [GK-customfield]Daniel[customfield-GK]If you're good at something, never do it for free... | |
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| andybob | Oct 22 2007, 02:31 PM Post #16 |
Sticking around
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430BHP on SARD 550 injectors is also asking for trouble, unless he's running higher boost pressure (no mention of an adjustable FPR in the spec). sorry but i aint brillient at maths but at 100% load thats only about 360bhp |
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| amnesia | Oct 22 2007, 02:46 PM Post #17 |
There's no replacement for displacement !
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Holy thread bump Batman !! I think I actually meant higher fuel pressure :rolleyes: Theoretical BHP for a specific injector size is... size of injector in cc X number of injectors / 5 For a 4 cylinder car (with a single injector / cylinder) this works out as inj size * 0.8 this is the maximum BHP - a safe working rate is 85% of that inj size x 0.8 x 0.85 or put another way... inj size x 0.68 Thus 555 injectors are good for 377.4 BHP at 85% duty cycle. To work out what injectors you need for a certain BHP just work the calculation in reverse... simply divide the required BHP by 0.68 and pick the next size of injector up from the result (to be on the safe side). eg. if you wanted 400 BHP then you would need 400 / 0.68 = 558 cc injectors but these are not available so you choose the next size up. So theoretically 550s can support up to 440 BHP at 100%, but I wouldn't expect it to be too reliable. If you increase the stock fuel pressure (3bar on a 200SX) then you can reduce the duty cycle of the injectors accordingly, but it would make it more difficult to map, particularly around idle. |
| [GK-customfield]Daniel[customfield-GK]If you're good at something, never do it for free... | |
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| DNACARS | Oct 22 2007, 02:52 PM Post #18 |
John
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As already said, the Yanks have got over 500BHP on the stock bottom end. In japan the back street drifter are running 550bhp on standard bottom ends and moster turbos i know this because got it on a dvd of it and they went in a shed where the jap man lived had s13 with s14 lump in it and filmed him going aroud a lorry park drifting at about 100mph fuc@ing amazzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzing to see |
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| Nismo Jester | Dec 18 2007, 03:13 PM Post #19 |
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The US Silvia's (240SX) use SR24DE lumps i.e. 2.4l non-turbo's. These lumps are very much sort after due to their CC and strength (though not much power without adding a tubbie!). Even with this I'd still doubt more than 350BHP would be sustainable with stock internals. Not many peeps would spend that much time/effort/money and then not use the car aggressively – which would stress the bottom end. Then general rule-of-thumb from the SXOC seems to be: strengthen the 200SX bottom end if you’re going above 300BHP. Which I think makes sense. Not saying it can't/hasn't been done - just that it is no a good idea to increase BHP to 2 1/2 times manufactures spec and drive the car hard/aggressively. (Sorry to bump this old thread BTW) ![]() |
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