A small list of question's from a new S owner

ONLY for ADVANCED technical discussion about the 240sx!
Monster240SX
Posts: 2
Joined: Tue Apr 10, 2012 7:24 am
Car: 1991 Nissan 240SX

Post

Hello guy's, before I start asking question's I'll post a list of (known) mods on this car:
1991 fully built KA24DE with a GT35(r) turbo.
KA24DET
.20 overbore
CP 8:5 Compression pistons.
Eagle rods
ACL race bearings
light weight flywheel
Stage 3 clutch
ARP Head studs
Apexi head gasket
Ported/polished head
5 angle valve job
polished crank
850cc injectors
top fuel rail
walbro 255
AEM EMS
Apexi AVCR boost controller
KYB GX2 struts
tein pillowball springs
1 piece alm. drive shaft
hicas delete
VLSD diff.

Now there is the known list. And here comes some question's;
~Im running just 13-15 PSI, a friend said that seemed extremely low for what this car is, so... is it?
~I have ALOT of motor oil blow out of transmission hole where shifter is?
~BIG~QUESTION~ What kinda transmission works in these cars? I need one.. badly.
~My speedo hand jumps and hops around?
~Car kinda studders when it starts making boost in like 3rd gear?
~Early of a morning it idles between 1k, an 2k...that normal?


Any information would be extremely helpful as I'm new to these car's and I have no idea about these kinda car's. Its my first EVER turbo car....


compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

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Early morning high idle normal, as far as the studder in 3rd could be anything from needing new plugs to.the tune to maf sensor position and I had the same problem with the maf screen bring removed causing turbulence and incorrect maf voltage. Also dirty/ clogged injector can cause this.
Speedo, pull the speed sensor and check the teeth on the gear. If they are worn get a new
The transmission stick with the 240sx trans but its limited to about 400 hp before you start having problems. Im switching to the vg trans (90-96 300zx) and there are 2 companies that make adapter kits Mazworx and excessive engineering. Id go Mazworx. And yes, 13-15 psi on a gt35 is very low. That turbo won't start coming alive till about 20psi or so but I would not start turning up the boost without a wideband and doing some data logging on the knock sensor.... Then turn it up little by little.

Monster240SX
Posts: 2
Joined: Tue Apr 10, 2012 7:24 am
Car: 1991 Nissan 240SX

Post

So the stock transmission isn't going to hold up to what little its pushing now? And as fas as Tue mas an what not. Any suggestions? I'm new and I'm also olden to changing things..... However I want it to me realistic.. and about a adapter.. how much and who makes them? Also what do you think these car is able to make/push? Im looking for a street racing kinda car.


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