are you keeping the TT block and just whacking a single turbo on it? wouldnt it be easier just to drop an STi engine in?

Good luck finding a PFC that works with a B4 wiring loom.

Sounds like fun though.

I personal Love the TT.

Bring on a FMIC though

Oh yup... absolutely.

I love the TT too BUT... it's just lag overkill and in summer... yuck. Your conversion is yet to experience summer, mate, from memory?

I'm after response. I don't care much for power and I'm certainly not chasing ponies. On this quest for response, lightened components are yet to come. Currently alloy billet type flywheel which is noticeable different (and I suggest everyone should go out and get one) - pulleys soon and other main drive components possibly to come.

I'm aware that spool time on a single will start at ~3000rpm depending on components used (turbo, pipes and the sort as opposed to the 2300rpm the they currently start spooling at.

In regards to PFC...

That's another thing I needed to know.

What's different between the B4 loom and a WRX loom?

All turbo cars will ping during summer, its inevitable. If you're not chasing power then you dont really need to do a single conversion. You will be very surprised how much difference a TBE + tune will do to the B4. Heaps of people have thought about selling their B4 due to the reasons you mentioned but after a tune, its a totally different car. Its true that you'll never get rid of the VOD but ask anyone with a tune and they will tell you the power delivery is much more smoother and you can barely feel the VOD. Keep in mind that by going to a single, your day to day driving probably wont be the same low down off the line.

Of course... Thats understood.

The car currently has the Tek2 - but it's still not that fantastic and it's very limited.

I do hold some faith in a TBE but like I said - It's still very limited.

What next though? Upgrade the turbos to ball bearing types as opposed to the factory brush bearing types?

Even with the introduction of a FMIC due to pipe lengths and greater intercooler volumes the car is suceptible to even more lag. Is this even able to be tuned out?

I've driven MY02B4's dog of a car with his TBE + *cough* Tek2 and i can say its more responsive than mine (TBE, EBC) with minimal VOD.  Whether his being manual has much affect :Dntknw:  Hence, i'm planning a Utec later in the year and i'll be content with her; performance wise.

Ultimately, if you aren't content with ur Tek2/other mods u've done and have the $$ for a conversion, go for it. :victory:

Coming from up north might be a problem for him as well because they experience warmer weather than we do down here and they dont get those great melbourne nights

Is the VOD still THAT noticeable after Tek2? I found that the power delivery is much smoother. I dont see my passenger lean fwd then get pushed back into the seat during the pre-tek2 days. With some aftermarket dumps, you'll keep up with the small cars that usually jump you at the line and i'm talking about normal driving. Torque has improved alot since TBE. I can basically floor it anytime and pick up boost very quickly. You can basically cruise around in VOD territory and do the same.

In your case, maybe you want to consider getting a FMIC first?

Do you have a dyno printout? If MRT did the tek2 then it would probably be as good as any tek2 tuner in aus. Is yours a manual or auto? Maybe it needs to be retuned to suit the warmer conditions where you are?

I remember for the first couple of summers in melb, it was a pig to drive. I just couldn't drive it without it pinging its nuts off so had to take it easy and pretty much drive off boost. That probably explains why my engine hasn't blown up yet. Also it depends on driving conditions. If you're driving it in peak hr traffic most of the time then chances are it will ping more than others due to that nasty heat soak.

In the interim, perhaps give a DIY waterspray setup a go? Mixed opinions/results there. If you havent already tried different fuels, give that a go as a short term solution.

I read you had a rebuild.. did you stroke it?  Increase displacemnt (xx:)xx)..  add to what's beneath the turbos and let them do their thing..  no more 1994cc..  (+1 fmic)

best turbo i have felt in terms of responsiveness and power = vf34.

on a bugeye wrx, vf34, sti tmic, 3inch TBE, haltech interceptor and water spray makes over 170atw on SMW dyno and can feel the power coming on even before 3000rpm.

VF34 = orright turbo.

I'd at least go a VF23.

did i read correctly that your wanting... Response.?

you wont gain it by going to a single

FMIC makes a HUGE improvement on the doughyness thats associated with the topmount aswell as the general driveability/feel of the engine, and youll get much faster boost and response from a tiny turbo than a 34 or 23 etc.

drive a conversion or an rs lib with a single then drive a b4 with exhaust fmic and ecu tune. then report back which is more responsive.

if you have an auto then it will never be very responsive anyway.