V-Lim Jim

Hi All,

My V3 STI GF8 is getting an Andy Carr ESL remap at Autotecnica next month and I wanted to see what people's thoughts were on my spec and what might be easy upgrades to give me more performance from the remap. I plan to go MAFless. Engine wise I currently have;

-EJ207 2 litre shortblock, V3 STI Heads
-Harvey Trick Up-pipe
-Samco turbo inlet pipe
-Forge Recirculating DV
-Walbro 255 to be installed
-Standard VF23 Turbo
-Standard Yellow injectors (believe these are 440cc)
-Standard air box with Cosworth panel filter
-3in sports catted exhaust to be installed

I am not chasing a power figure but I do want as much torque as possible from the standard turbo.

What torque/power would you expect this setup to give me? and could I change anything above to eek out a little more performance without breaking the bank? (larger injectors for example?)

Your thoughts would be appreciated

1509joe

iTrader: (2)

Turbo and possibly injectors should get 320/330

yabbadoo4

iTrader: (8)

ported headers always helps with spool. 3 port boost solenoid helps with better boost control also. full decat will see the best gains as it really lets the engine breathe.

bludgod

iTrader: (3)

i'd be inclined to add a fuel pressure regulator and a dump valve to your setup along with a newer map sensor (fitted with the ECU).

The older map sensors are limited to 1.2bar max - the newer one will read up to 1.7bar so means you can run a little more boost mid-range to get the most out of it.

1509joe

iTrader: (2)

Should be the later MAP sensor on the v3 STI but the v3 are notorious for a mixture of parts. Have seen 3 ports and 2 ports factory fitted with the same ECU

V-Lim Jim

Thanks mate, forgot to put the Forge recric DV in my spec, I have now edited my post. Is there any particular brand and type of fuel reg that I should be looking for on the V3 sti? Also, will a newage 1.7bar MAP fit my car physically or will it need modification?
Thanks Yabba, as Joe has said I *think* I'm pretty sure I have a 3 port already but will double check. I am also now considering full decat to give me maximum grunt low down.
Thanks mate, pretty happy with those numbers

bludgod

iTrader: (3)

the only map sensor that "fits" is the original one, however newage ones and 97/98 ones and even after market ones all follow the same setup - 3 wires and 1 vac hose so fitting isn't a big deal.

if your buying a 2nd hand sensor, ask the seller if they can include the loom/harness fitting and a few inches of wiring to attach to your car.

For the fuel reg, any of the big brand names will do fine - ebay ones tend to be fakes/bad copies and will leak or randomly pack in leaving you without fuel at a time that you really need fuel so best avoided.

V-Lim Jim

That makes sense, most of the MAP units I have been looking at seem to be a circuit board/sensor so I guess I could DIY it in, I've seen a guide on here.

I'll avoid ebay fakes, I don't fancy fuel squirting about in my engine bay!

bludgod

iTrader: (3)

aye that's the aftermarket sensors - but look for a map sensor off a 97-00 car it's a complete standalone sensor in a box with 3 pins on it which you can tie into your existing wiring harness, attach the vac line and jobs done!

V-Lim Jim

Thanks for the tip, that's what I'll look for

mellinator2k

V-Lim Jim

Thanks Mell, is that at the flywheel? How much torque?

mellinator2k