Nissan S14 Sprint Car

[[email protected]]

I thought I'd post up what I'm doing...  My car is an S14 200SX that I bought to use on the track.

Chassis wise its stripped out, with a full bolt-in cage, fully adjustable suspension, big brakes etc etc etc.
Originally it had an SR20DET which delaminated a bearing at Silverstone, so is being re-built by Ben at Angel-works, the bottom end build can be seen here: http://www.angel-works.co.uk/articles/sr20det.php  Currently the cylinder head is under development with 1mm over sized valves and a complete flow-development job is being carried out.

So while this is happening I've decided to drop in a second engine, this time a non-turbo SR20DE (note the lack of a 'T' there).
Why?  Well the suspension hasnt been setup correctly yet, and I'm out of practice driving RWD, so I need to setup the suspension and improve my skills by getting a running car that I can compete in a Winter Sprint series, which will provide me with timing information to show how the chassis and the driver are improving.

I am controlling the engine using a VEMS v3 with a v3 harness modified and spliced to connect engine to ECU.  The distributor is being kept, all be it with a modified CAS disk and Mitsubishi EVO4 coils provide the sparks.

[Maff]

Wahey, progress at last.  Is the engine out of a boat? it looks....unloved.

[gox]

Ahhhh....S14 is soooo nice...its a bit expensive here where i live 7000eur for 97' (expensive comparing to S13 92 for 2500eur)

Got ta have it some day

Nice car Rob,need some rwd driving/sliding school? 

[jrtuning_ben]

looks good matey....im also out of practice now and the std engine i bought to get back out and about was knackered

[[email protected]]

Thats why I bought the NA one here, the turbo engines seem to hold a stupidly high price, and don't aways seem to be worth it, people can't seem to sell the NAs so they're an affordable midway engine

Rob

[BenFenner]

Hey, that distributor looks familiar! =]

Did you have to widen the "D" hole in the new CAS disc to get it to fit, or was that just my bad luck?

[[email protected]]

Yep, I had the needle file out for a bit of clearance, strange how it fits the CAS but not the distributor - the shaft must be 0.1m wider.

[BenFenner]

It would seem so.

[[email protected]]

Time for an update...

I got the engine running and as it warmed-up I was unlucky enough to hear a rather nasty hammering sound from the top-end.  Pulling the cam cover showed me that the hydralic lash adjuster had bled down and it wasnt interested in pumping up again.  So I took the executive decision to pull the head and fit some of the goodies I had stored up for the SR20DET engine.
My mate Ben@Angelworks said he could do me a bowl and seat gasflow job in an evening, so the head was stripped, washed and he did the seats with his awesome Newnen CNC seat cutter then ground the valves on his Serdi machine.  I fitted my solid lash adjusters and double springs which will allow me to try camshafts with silly profiles.  The head has had 1.5mm skimmed off it to get the compression a little over 11:1 and I've fitted adjustable cam gears so that I can zero the cams back in as the skimming knocks the timing out by a few degrees.

I've also found Martin Breuwer http://www.martinbruwer.com/ in South Africa who makes ITBs for the SR20DE engine, so now my engine looks like this:


All I need now is to finish the install (thanks Nissan for making things pointlessly complicated - why should you have one fuel rail and one tps across the range of engines when 5 different types will do as well?) which now is to only modify the fuel rail and fit the fuel regulator.

[gunni]

Awesome.

Can I still come drive it for you while you tune it at the old airfield.

[[email protected]]

When are you back in the UK?

In all honesty its probably better if I drive and you map

Rob

[gunni]

I´ll be back in 30days don´t know my schedule of Sept.
GF hasn´t decided how she wants to spend Sept yet which means I don´t know either .


Sure I´ll map and you floor it.

[[email protected]]

It has to be running before September
I have to have a running car before I hit 40

[gunni]

Maybe mid Sept.
I should be in your neck of the woods in Sept for my new job training.
maybe I could hook you up with a dyno session and we can map it there.

When´s the scary 4-0

[cliffb75]

Wow, 'Rob in running s14 shocker!'

Sounds good. Let us know if you need more bystanders if you do an airfield day