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View Full Version : drilling holes in the corner of the airbox?


cookci
12-01-06, 10:46
good idea or bad idea... just near the headlight so it pulls in cold air

could this possibly increase performance?


:tomato:

mikeyb10supra
12-01-06, 10:48
No point, it provides adequate air for what you need and little performance gain would occur if any.

Ian W
12-01-06, 10:51
No point, it provides adequate air for what you need and little performance gain would occur if any.

yeah, that.

Digsy
12-01-06, 10:53
just near the headlight so it pulls in cold air



It pulls in cold air from near the headlight anyway.

michael
12-01-06, 10:54
How jolly Max Power

cookci
12-01-06, 10:58
not such a maxpower idea... it worked on my celica and with a number of other celica owners


Just wanted to know if it was worth it thats all

Digsy
12-01-06, 11:06
How big a hole are you talking about?

cookci
12-01-06, 11:08
dunno maybe removing the entire side of the front of the airbox near the drivers side wing

Digsy
12-01-06, 11:15
That's not really drilling a hole, is it? :D

A hole that size would tend to suck in warm air from the engine bay, or so I whould have thought.

FYI, general concensus on here is that for anything other than a big single the stock airbox is perfectly good for the job.

Chris Wilson
12-01-06, 11:46
The airbox is fine as is, there is NO point in removing it, drilling holes in it, modifying it, fitting a different filter to stock, blah blah. I have measured vac drop on them and it's a superb set up, quite able to feed 500 BHP engines with no real restriction.

cookci
13-01-06, 23:58
ok ok lol



so lightening the car or nitrous it is then


p.s. does the supra have a throttle heater?

Chris Wilson
14-01-06, 12:45
It has a throttle body warmed by the engine coolant, yes.

cookci
15-01-06, 12:31
Worth bypassing by any chance?

thanks

Lucifer
15-01-06, 13:44
Why would you want to do that?

Matt Harwood
15-01-06, 18:34
Why would you want to do that?

Aiding in decreasing charge temps by any chance?

I've done it on my car and it has no detrimental effect on cold running. I'm guessing it's there for the really cold countries.

Lucifer
15-01-06, 20:06
Aiding in decreasing charge temps by any chance?

I've done it on my car and it has no detrimental effect on cold running. I'm guessing it's there for the really cold countries.

I gathered that, but isnt it valve controled?

Matt Harwood
15-01-06, 20:14
Not that I remember. Just in and out from the main waterways.

migster
15-01-06, 20:44
Not that I remember. Just in and out from the main waterways.


its fed from the front of the head to the TB out of the TB to the iscv so you can by pass no probs. head to ISCV.

Lucifer
15-01-06, 20:47
its fed from the front of the head to the TB out of the TB to the iscv so you can by pass no probs. head to ISCV.

I never knew that, always thought for performance sake it would have had a temp controlled valve in line. Must have a good look next time.

migster
15-01-06, 20:50
No valve.. all part of knowing your way round the 2jz...all learning;)

Lucifer
15-01-06, 21:09
No valve.. all part of knowing your way round the 2jz...all learning;)

Well Mig you are the UK god of the 2JZ after all!

migster
15-01-06, 21:11
Am i ...well if you say so :innocent:

Duffers
15-01-06, 22:05
How jolly Max Power

I remember reading Max Power (years ago I might add) and doing that with my Calibra airbox! How much difference did it make... Mmmmm, about 100bhp I reckon! Honest... :rolleyes:

Lucifer
15-01-06, 22:10
The way the Supra is designed it would just suck in warm air from teh Main fan anyway.

Ray
16-01-06, 00:09
how about make some holes in the airbox and redirect your aircon fan so you get Airconditioned induction!

Now thats what you call INOVATION!

dangerous brain
16-01-06, 00:20
Retro fit some of that plumbers pipe freezer spray to spray onto your intercooler. Be a simple job. All you need is a plunger to push the aerosol down and spray away. 1/4 mile heaven. I can't beleive that no-one does this you know. Its what £4-5 a can. You want stupid cooling then 4 cans a run. I've seen people pay more than that for racing fuel :)

Terry S
16-01-06, 10:13
Well Mig you are the UK god of the 2JZ after all!

well people could do an awful lot worse than listen to him!

b'have
16-01-06, 10:51
Retro fit some of that plumbers pipe freezer spray to spray onto your intercooler. Be a simple job. All you need is a plunger to push the aerosol down and spray away. 1/4 mile heaven. I can't beleive that no-one does this you know. Its what £4-5 a can. You want stupid cooling then 4 cans a run. I've seen people pay more than that for racing fuel :)

Have a 7pound CO2 bottle fitted in the boot, plumbed to spray bars ahead of the fmic. 10 sec blast of that completely ices the intercooler.

cookci
19-01-06, 00:16
Might bypass the throttle heater then cheers matt.

should be good for a very minor torque increase... best of all its free though :)

JohnA
19-01-06, 07:18
Very true (for an already warmed up engine in the summer)

I'm sure you'll find an alternative way to compensate for the loss of fuel atomisation in most other circumstances.:thumbs: