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TWM Airbox


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#1 BAM083

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Posted 11 August 2013 - 07:52 PM

Was wondering if anyone has run the TWM airbox (link below) and what are your thoughts. Currently running triples with sock filters over the airhorns but am a bit worried about water as the bonnet vent sits directly above the filters, I have also had one of the socks catch on fire from a back fire so want to install an airbox with a pod filter in front of the radiator, figure it will help with cooler air as well.
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http://www.borlaindu...lterAirBox.html

#2 Gareth. J.

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Posted 11 August 2013 - 09:00 PM

I bought one of these a long time ago from TWM. You'll need to take measurements to make sure it'll fit without hitting the strut tower, they are designed for the shorter intake manifolds, I used a redline manifold and it would not fit. Finish/quality of them was really poor but I believe they are much better now.

#3 luvemfast

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Posted 11 August 2013 - 09:02 PM

I'm running one on my car. Running a 3" intake through to a K&N filter in from of radiator. Using 50mm air horns inside air box. Can't go larger.
Works well, quitens the induction noise a bit though.
I have to use the matching TWM manifold though as it wouldn't fit otherwise.
Check my build thread. There's s YouTube link on the dyno there too.

#4 luvemfast

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Posted 11 August 2013 - 09:05 PM

Gareth posted that pretty much as I was typing and verified my concern.
I'm happy with how it's made.
But it does need reinforcing where it's clamped to the 3" intake. I made up what looks like an egg ring. Then used a Falcon V8 hose to adapt it to the S/S pipe.

#5 Gareth. J.

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Posted 11 August 2013 - 09:12 PM

I'm running one on my car. Running a 3" intake through to a K&N filter in from of radiator. Using 50mm air horns inside air box. Can't go larger.
Works well, quitens the induction noise a bit though.
I have to use the matching TWM manifold though as it wouldn't fit otherwise.
Check my build thread. There's s YouTube link on the dyno there too.


Hehe, Yours was the one I was thinking of when I said they're made much better now.

Go for it if you have the room

#6 BAM083

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Posted 11 August 2013 - 10:23 PM

Cheers for the replies, sounds good, I'll pull out a tape measure and see how much room I've got over the next few days. Was thinking about making one up out of aluminium but for the price of this one it doesn't really seem worth the effort if this one will fit.


#7 HKSZ

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Posted 12 August 2013 - 12:19 AM

How much are they?

#8 BAM083

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Posted 12 August 2013 - 08:22 PM

How much are they?


According to:  http://www.racetep.c...ztripdcoe.html  they are $395, that is in US dollars and without freight, haven't heard back from them with a quote with freight yet. 

#9 mossy

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Posted 12 August 2013 - 09:40 PM

What about this airbox

http://www.mjpshop.c...&product_id=437

#10 BAM083

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Posted 12 August 2013 - 09:54 PM

What about this airbox

http://www.mjpshop.c...&product_id=437


That looks good, wonder what the size is like, if its a bit lower profile it might fit a bit easier. Will send them an email asking for dimensions and see what they say. Might work out a little cheaper too depending on freight.

#11 BAM083

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Posted 13 August 2013 - 06:38 AM

Just received an email back about the TWM airbox and unfortunately they are no longer offering them and won't be in the foreseeable future so it looks like the MJP one is the go depending on size and freight costs unless I can find another brand somewhere.

#12 luvemfast

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Posted 13 August 2013 - 07:36 AM

Looks to be the same airbox to me  ;)

#13 Gareth. J.

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Posted 13 August 2013 - 08:12 AM

Efi hardware do a few different types. I have seen one almost exactly the same but it was for a four cylinder. Might be worth trying, they are in Melbourne.

Didn't someone on here have the mold or make the airbox for Gavin strongmans silver/orange Z? That was a nice bit of kit!

#14 NZeder

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Posted 13 August 2013 - 08:20 AM

Didn't someone on here have the mold or make the airbox for Gavin strongmans silver/orange Z? That was a nice bit of kit!

I was just about to post about that - if I recall he was using a Prince/Nissan Skyline GT-A (or was that GT-B) triple intake airbox and someone did talk about making a copy/mold of that - I for one would be interested in that.

#15 Gareth. J.

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Posted 13 August 2013 - 08:30 AM

I was just about to post about that - if I recall he was using a Prince/Nissan Skyline GT-A (or was that GT-B) triple intake airbox and someone did talk about making a copy/mold of that - I for one would be interested in that.


That's on Alan fields 260z, I think it's a GT-B.

I have a copy of Race magazine with Gavin's car in it, I can post a pic later tonight if nobody finds more info before then.


#16 mossy

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Posted 13 August 2013 - 08:40 AM

Here is the old thread, not enough interest to go ahead with

http://www.viczcar.c...2.html#msg87452


#17 Gareth. J.

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Posted 13 August 2013 - 09:15 AM

Found a link with pics of Gavin's air box. According to this they were produced by Robco engineering. I'll ask about them when I go down today.

http://www.viczcar.c...1.html#msg53481

#18 NZeder

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Posted 13 August 2013 - 11:16 AM

Here is the old thread, not enough interest to go ahead with

http://www.viczcar.c...2.html#msg87452

Is that was a shame - they look good, work well and also work with a longer Canon/Redline intake. I would still be keen for one. I might have to see if I can find one of those myself.

#19 Gareth. J.

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Posted 13 August 2013 - 05:21 PM

Asked Rob about the air boxes, none left but can be made. Gavin Strongman has the mould for the airbox and can reproduce them if you contact him.

I do like the GT-B style too!

#20 260Coupe

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Posted 13 August 2013 - 06:36 PM

I have a GT-B airbox which I modified to fit my 44 Mikuni's, I offered to get a mould made and get them reproduced in carbon Fibre (for rigidity) a couple years back before the engine was reinstalled but I needed a minimum commitment of 10 x units and they would have been approx. $400 each ex ram tubes..................and yes they fit under a strut brace, you just need to relocate the coil.
Needless to say I got plenty of  "yeah count me ins" unit I asked for a $100 deposit ..............and none were forth coming.......alas many like to experiment with modified rocker covers and un-tested air boxes ::)

This airbox was dyno tested and proven to improve mid range torque by approx. 10% and not rob any top end HP, as tested on my warmed over L26 and Gerhard Metz's L3.1 stroker.

If I can get 10 x serious orders then I'll look into getting them produced again.

cheers

Alan



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