Blacktop 20v - cheapest option to gain 20kw?

[iOnic]

[Dopamean]

I don't recommend removing the power steering belt. I did it once at the drags and it sucked big time. It's really not worth it.
If your air con works, don't remove it, especially if it's a dark colored car.

Just get some trumpets, they will give you a gain. From there, do suspension and make it more fun to drive, rather than more powerful.

Ah some good advice here.

But can you be more specific?
Trumpets as in which?
And where to buy them - size?

Also is this open or still inside the factory air box / air filter?
I like the idea of improved handling.

Swapped out the K&N pod and put the factory box back on.
I was told by a guy who worked for Toyota but did the job on his own time that the nice induction noise was attually turbulent air and attually not all that great.

Since putting the factory intake back on its quite as
But most defiantly a noticeable power gain.

[Crampy]

I don't recommend removing the power steering belt. I did it once at the drags and it sucked big time. It's really not worth it.
If your air con works, don't remove it, especially if it's a dark colored car.

Just get some trumpets, they will give you a gain. From there, do suspension and make it more fun to drive, rather than more powerful.

Ah some good advice here.

But can you be more specific?
Trumpets as in which?
And where to buy them - size?

Also is this open or still inside the factory air box / air filter?
I like the idea of improved handling.

Swapped out the K&N pod and put the factory box back on.
I was told by a guy who worked for Toyota but did the job on his own time that the nice induction noise was attually turbulent air and attually not all that great.

Since putting the factory intake back on its quite as
But most defiantly a noticeable power gain.

Try and get hold of some I.Mec trumpets. I got some for one of the guys on here from Pass Racing when I was in the States last year.

Also,
These look pretty good: http://www.trademe.co.nz/Trade-Me-Motor ... 327374.htm
$160 for a set of four is a good price. I paid $125 US +postage for the I.Mec ones (to texas), but postage to NZ would be expensive

Keep the stock Air surge box and run the trumpets inside them.
the ones on Trademe are about the size and length you should be looking at running.

[Logan]

There is no point changing trumpets unless there is SIGNIFICANT supporting modifications. Toyota made them the length they are for a reason.

But up to you....

[Dopamean]

There is no point changing trumpets unless there is SIGNIFICANT supporting modifications. Toyota made them the length they are for a reason.

But up to you....

Oh my, what to do.....

Reading the threads on trumpets it shows a power loss at lower RPM generally or even worse a power loss over all if not thought out.

Is there an optimum length that will provide improved performance over the factory but keeping the low RPM power the same?

Ah sorry - so 110mm is around the best length agreed?

[Crampy]

NO!!!

The I.MEC ones are designed and made for a Blacktop WITH THE STOCK AIR SURGE BOX.



Dyno shows red line of stock motor and green line is with I.MEC style short trumpets (inside the surge box).

The same gains up high were achieved without the surge box, BUT it lost down low by quite a bit.

[Dopamean]

NO!!!

The I.MEC ones are designed and made for a Blacktop WITH THE STOCK AIR SURGE BOX.



Dyno shows red line of stock motor and green line is with I.MEC style short trumpets (inside the surge box).

The same gains up high were achieved without the surge box, BUT it lost down low by quite a bit.

Wow that looks promising - thanks Crampy
So the lengh of the I.MEC ?

[Crampy]

I gave the ones i got a quick measure up and they're only about 35mm or so.

That means the ones on trademe I pointed out are pretty good also. For $160 you can't really go wrong dude.

[Crampy]

The 110mm trumpets would be good if you weren't going to use the factory surge box (well you couldn't anyway).

You would run into the came problems as the pod filter, by sucking in hot engine bay air. You would need to heat shield or make up some form of cold air feed. All this makes it a bigger and bigger job.

The shorter trumpets bolt straight in and you run all the rest of the factory intake setup, easy.

[Dopamean]

Thanks for your help Crampy but there does seem to be overwhelming support through older posts that this is NOT the way to go.

But I still appreciate your input

I guess the conclusion is that without large funds you are not going to gain much in the way of power 5 - 10kw is all that could be expected.

Money is better spent on handling of the car.

It’s not such a disappointing conclusion as I bought the car during the peak fuel price - small engine with nice power.

I've ordered a panel K&N which should arrive next week, factory intake is back in place, looked the Apexi (same price) but I could not wait a month for it.
LOL I frustrate myself with my poor mechanical skills but I'll persevere

Going to go up to Wolf Mufflers to have them remove the squashed section of the exhaust.

Would be open to other minor mods but seems that lowering on some TEIN springs + new shocks - sway bars would be the best thing to do

[BZR4AGE]

A catch can is a must if you have not already got one. Get one with breather on it! don't get the Cusco one, as it don't even have a breather on it!

[Crampy]

More about I.MEC trumpets.

http://www.toymods.net/forums/showthread.php?p=785419

[Truenotch]

Sure thats not urban legend? It makes no sense when you look at anything about trumped design ever...

NILPSI ran these on his blacktop when it was standard and sold them because he lost power, not AceSniper has them (I think), but his car does 10krpm and has over 120KW NA.


You'll never get a 20kw gain for cheap, heres snipeys dyno graph... at heaps of revs with a lot of good bits in the motor:


See here: viewtopic.php?t=58379