Tuning A UK TT Supra

[Bobbeh]

So you're returning it to stock, unless you're messing with boost.

[JohnA]

So you're returning it to stock, unless you're messing with boost.

Well I'm keeping the stainless exhaust, since it goes fine through MoT with just one cat, and boost will be higher than stock, yes.

But nothing in the engine bay to show that anything is modified (airbox in place with paper filter and NOT "hi-flow" variants)

So there is an element of BPU, but not up to the accepted standard of most people. Certainly not mucking about with radiator shrouds and FMIC businesses.

Hence BPU-

[Bobbeh]

[JohnA]

yes, but in a manley sort of way

[Bobbeh]

I like your thinking.. I've tried to keep mine the way toyota left it apart from the wheels and the sound of the pipe

[The Hornet]

BPU++ when it blows it blows. Just means upgrading comes sooner

[JohnA]

Don't get me wrong, I love horsepower as much as the next guy.

Maybe even more.

After all, I used to ride a turbocharged kawasaki 1100, in BPU terms that would be off the scale, lol...

 

What I dislike is a string of useless 'mods' that reduce reliability without really increasing hp (or even compromise it). Just because everybody follows an 'upgrade' path doesn't necessarily make it right. In fact it might be downright flawed, but profitable for the aftermarket re-sellers who get richer by selling all the tat.

 

My motto is: if you don't know exactly why the designers implemented something the way they did, leave it alone. If you can't figure out what options they evaluated and why they chose this particular one, then you don't know enough about 'improving' the design.

Neither do the jokers who designed/manufactured/marketed some so-called "uprated" parts that sell like hotcakes.

[penguin]

so does that mean your not going to chrome your engine bay?

[JohnA]

I've actually added heat-reflective tape on the stock airbox.

 

It's mainly on the sides facing the engine bay heat, the idea is to reflect as much radiant heat as possible. I'll post a couple of pics later on.

Used less than half a roll of aluminum tape, cost all of £1 (from Poundland, where the discerning tuner looks first!)

So overall cost of the mod is £0.40 give or take.

 

I had done it on the calibra's airbox and precompressor pipe, average intake temps dropped by 5-6 degreesC in the summer, that translates into 1.5% extra power without adding any extra heatload in the i/c or the rest of the engine bay (where the FMIC dumps the heat)

[CJ]

Thats sounds like a very good idea John

[JohnA]

Yeah, pikey-tuning at it's best, lol...

 

You should see with the Calibra turbo, I had B&Q drainpipes forming a cold-air intake, Homebase doorstop springs holding the wastegate open at over 25psi, PetShop fishtank valves for non-return vacuum pipes, that sort of thing...