S14's

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Discussion

matt_fp

Original Poster:

3,402 posts

255 months

Monday 28th March 2005
quotequote all
Does anyone have any experience of S14 200sx's?

Seems to be a few reasonable 80K mile'ish examples going for around £3k at the moment so it looks like for 4k you could have something pretty handy?

Any weak points on them or is it a case of decent downpipe, FMIC and up the boost to somewhere around 1bar (take it the standard map goes that far?) and enjoy.

Cheers
Matt

shadowninja

77,397 posts

288 months

Monday 28th March 2005
quotequote all
sxoc.com

Mr E

22,049 posts

265 months

Monday 28th March 2005
quotequote all
matt_fp said:

Any weak points on them or is it a case of decent downpipe, FMIC and up the boost to somewhere around 1bar (take it the standard map goes that far?) and enjoy.


I think that's pretty much it, yes mate.

stumartin

1,706 posts

243 months

Monday 28th March 2005
quotequote all
matt_fp said:

Seems to be a few reasonable 80K mile'ish examples going for around £3k at the moment...


Where, if you don't mind my asking? Haven't found any worth going to see for under £5k in autotrader recently, unless I abandon all precepts of why I want the car and get an auto.

vixpy1

42,662 posts

270 months

Tuesday 29th March 2005
quotequote all
You can take the standard turbo up to about 290-300 bhp without any serious mods.

NikB

1,834 posts

271 months

Tuesday 29th March 2005
quotequote all
vixpy1 said:
You can take the standard turbo up to about 290-300 bhp without any serious mods.


Air filter, exhaust and decat and a boost tweak will see these sort of figures. Mine is running ~250 at the hubs with these mods.

vixpy1

42,662 posts

270 months

Tuesday 29th March 2005
quotequote all
NikB said:

Mine is running ~250 at the hubs with these mods.


Snigger..

Matt_fp

Original Poster:

3,402 posts

255 months

Tuesday 29th March 2005
quotequote all
Anybody know how far over standard airflow the standard map extends, or does it just run out of AMM range first?

Guessing somewhere in the region of 1.2bar hits the overboost protection so 1.1bar ought to do the trick providing the standard management fuels that far.

Matt

tuttle

3,427 posts

243 months

Tuesday 29th March 2005
quotequote all
Quite a few ppl fit Niss zx32 AFM's for extending range.Downside is price of 2nd hand ones can be as much as £200.00 rip off.

Matt_fp

Original Poster:

3,402 posts

255 months

Tuesday 29th March 2005
quotequote all
tuttle said:
Quite a few ppl fit Niss zx32 AFM's for extending range.Downside is price of 2nd hand ones can be as much as £200.00 rip off.


Only really want 250bhp or there abouts out of it - just going to be a run around really that can handle a bit of track work occasionaly. Mild tweeks and Nismo suspension package ought to do it.

If I decide to 'go to town' on it I'd probably put it on MBE rather than spend a similar amount sorting the standard management to run it properly. Has the added advantage of TPS/MAP as well so no AMM to suck through!

Spotted a nice 1999 dark blue one on the trader for £4K - time to get haggling

Matt

vixpy1

42,662 posts

270 months

Tuesday 29th March 2005
quotequote all
We had one in on Sat which put 240bhp with the slightest of mods.

NikB

1,834 posts

271 months

Tuesday 29th March 2005
quotequote all
vixpy1 said:

NikB said:

Mine is running ~250 at the hubs with these mods.



Snigger..


Why the snigger

Something to do with that type of dyno?

NikB

1,834 posts

271 months

Tuesday 29th March 2005
quotequote all
Matt_fp said:

Only really want 250bhp or there abouts out of it - just going to be a run around really that can handle a bit of track work occasionaly. Mild tweeks and Nismo suspension package ought to do it.

If I decide to 'go to town' on it I'd probably put it on MBE rather than spend a similar amount sorting the standard management to run it properly. Has the added advantage of TPS/MAP as well so no AMM to suck through!

Spotted a nice 1999 dark blue one on the trader for £4K - time to get haggling

Matt


Have a look at the traders section on www.sxoc.com, both SRB power and Apex performance are good. You probably want to look at Tein for suspension, Nismo stuff is rather pricey!

Be careful with messing about with the ECU on the S14a's, the alarm and immobiliser are built in which makes remapping/changing to another ECU a bit tricky.

Matt_fp

Original Poster:

3,402 posts

255 months

Tuesday 29th March 2005
quotequote all
NikB said:

Matt_fp said:

Only really want 250bhp or there abouts out of it - just going to be a run around really that can handle a bit of track work occasionaly. Mild tweeks and Nismo suspension package ought to do it.

If I decide to 'go to town' on it I'd probably put it on MBE rather than spend a similar amount sorting the standard management to run it properly. Has the added advantage of TPS/MAP as well so no AMM to suck through!

Spotted a nice 1999 dark blue one on the trader for £4K - time to get haggling

Matt



Have a look at the traders section on www.sxoc.com, both SRB power and Apex performance are good. You probably want to look at Tein for suspension, Nismo stuff is rather pricey!

Be careful with messing about with the ECU on the S14a's, the alarm and immobiliser are built in which makes remapping/changing to another ECU a bit tricky.


Have a Nismo contact so can get a fair % off the retail price.

Whats the deal with the ECU - doesn't it store immobiliser, alarm, ancillary control etc. on a different chip (or at least at a completely seperate address if all on one chip) to the maps?

At the end of the day its only wiring so getting rid of the standard gear isn't much of a problem.

At the moment my thinking is along the lines of FMIC, made from one of the prototype IC's I have spare, some fancy Jap shiny boost controller, re-map/re-chip for fueling purposes, colder plugs, exhaust and some sort of induction modification if the standard airbox proves restrictive + Nismo suspension. Should bag around 250bhp I'd have thought, maybe a touch more if theres fuel/range for it and all do-able in a weekend.

Matt

iaint

10,040 posts

244 months

Tuesday 29th March 2005
quotequote all
Matt_fp said:

Only really want 250bhp or there abouts out of it - just going to be a run around really that can handle a bit of track work occasionaly. Mild tweeks and Nismo suspension package ought to do it.


You say that now but you'll get used to it and it'll stop feeling fast . Then you'll be after more boost, forged pistions, high-flow cams and a bigger turbo

Matt_fp

Original Poster:

3,402 posts

255 months

Tuesday 29th March 2005
quotequote all
iaint said:

Matt_fp said:

Only really want 250bhp or there abouts out of it - just going to be a run around really that can handle a bit of track work occasionaly. Mild tweeks and Nismo suspension package ought to do it.



You say that now but you'll get used to it and it'll stop feeling fast . Then you'll be after more boost, forged pistions, high-flow cams and a bigger turbo


The various FP fettled Nobles I work with make pretty much everything else seem rediculously slow so I've given up trying to keep up with them (in power terms anyway)

If it goes sideways I'll be happy enough...... for a while anyway

Matt

vixpy1

42,662 posts

270 months

Tuesday 29th March 2005
quotequote all
NikB said:

vixpy1 said:


NikB said:

Mine is running ~250 at the hubs with these mods.




Snigger..



Why the snigger

Something to do with that type of dyno?


There's a healthy debate about hubs vs wheel dynos going on in the industry.

More than that, i can't say i'm afraid.

vixpy1

42,662 posts

270 months

Tuesday 29th March 2005
quotequote all
Its related to that, yes. It goes further though...

matt_fp

Original Poster:

3,402 posts

255 months

Tuesday 29th March 2005
quotequote all
Worth a punt?

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=18238&item=4537890006&rd=1

Could probably bag that for sub 2K and if its not in too much of a state put it back to mint with modifications for the same again. A quick look under the cam cover should show what sort of life its lead.

BTW done a bit of digging on S14A ECU's, they have a secondary bus, possible for diagnostic or upgrade that allows you to solder in a link to a daughter card containing your new chip and then just switch jumpers to point it at the new bus rather than the old one for engine management duties. Job done and all immobiliser/alarm data is left as standard.

Matt

NikB

1,834 posts

271 months

Wednesday 30th March 2005
quotequote all
matt_fp said:
Worth a punt?

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=18238&item=4537890006&rd=1

Could probably bag that for sub 2K and if its not in too much of a state put it back to mint with modifications for the same again. A quick look under the cam cover should show what sort of life its lead.

BTW done a bit of digging on S14A ECU's, they have a secondary bus, possible for diagnostic or upgrade that allows you to solder in a link to a daughter card containing your new chip and then just switch jumpers to point it at the new bus rather than the old one for engine management duties. Job done and all immobiliser/alarm data is left as standard.

Matt



Looks quite clean, the only thing it's missing is the service history. Probably means that the oil has not been changed regularly which may mean shortened turbo/big end life span (but I don't need to tell you that!). There are quite a lot of cars coming up for breaking now, so it's getting easier to find replacement engines/turbos.

Interesting info about the ECU, I know that one guy took a while to crack the S14a ECU because of the alarm/imob issue. Maybe he went about it in a different way. You will easily make it to the 250-280 mark without touching the ECU.