theremm Posted October 19, 2015 Share Posted October 19, 2015 Gerry & Dave Castrechini - Presto Industries. As Craig mentioned a few posts back, Gerry heavily modified a 260Z airbox to work with the triple carbs on his 240K. While I'm sure all these airbox's works well with standard-ish engine setup's, they would be a restriction any serious HP L-series. It would be best to understand one's requirements before going off making something that may not be suitable... Lurch, what is the ITG megaflow filter like? I have seen you used this on your recent L28 build for that 240k. In my opinion the ITG megaflow filter looks the best out of all aftermarket air boxes/filters and probably the most 'stock' looking too Quote Link to comment Share on other sites More sharing options...
C.A.R. Posted October 19, 2015 Share Posted October 19, 2015 (edited) Lurch, what is the ITG megaflow filter like? I have seen you used this on your recent L28 build for that 240k. They are a fantastic filter - excellent filtration with high air flow through the foam element. 'If' there is an induction fire (backfire) the foam filter is designed to release Co2 when burnt & extinguish the fire. In my opinion the ITG megaflow filter looks the best out of all aftermarket air boxes/filters and probably the most 'stock' looking too I think you need your eyes checked mate. They look like a big foam condom & not 'stock' looking at all! Edited October 19, 2015 by Lurch ™ phillay 1 Quote Link to comment Share on other sites More sharing options...
theremm Posted October 19, 2015 Share Posted October 19, 2015 They are a fantastic filter - excellent filtration with high air flow through the foam element. 'If' there is an induction fire (backfire) the foam filter is designed to release Co2 when burnt & extinguish the fire. I think you need your eyes checked mate. They look like a big foam condom & not 'stock' looking at all! Hahaha yes but apart from that they are similar shape and colour closer than any of the other options available anyway !! Quote Link to comment Share on other sites More sharing options...
dat2kman Posted October 19, 2015 Share Posted October 19, 2015 This could look OK, painted in Datsun Airfilter Cover Orange? GongZ 1 Quote Link to comment Share on other sites More sharing options...
Moderators PB260Z Posted October 20, 2015 Moderators Share Posted October 20, 2015 'If' there is an induction fire (backfire) the foam filter is designed to release Co2 when burnt & extinguish the fire. That is a neat trick, and I had never heard of it. Yes showing my ignorance. Quote Link to comment Share on other sites More sharing options...
theremm Posted October 20, 2015 Share Posted October 20, 2015 (edited) This could look OK, painted in Datsun Airfilter Cover Orange? Yeah would look alright (nice even in black) but would it function as effectively without the pod filter up front? I assume there is no filter inside the box? Edited October 20, 2015 by theremm Quote Link to comment Share on other sites More sharing options...
dat2kman Posted October 20, 2015 Share Posted October 20, 2015 Filter in that black unt s out front, either a jolly big bvious ne, r, a very incgnito inverted pd type filter placed inside the 4" diam piping. No filter media required nsde bx, as that would disturb airflw nto trumpets. Quote Link to comment Share on other sites More sharing options...
HS30-H Posted October 21, 2015 Share Posted October 21, 2015 On one of my cars I'm using an 'R Factory' airbox originally designed for the S20 engine. I turned it upside down and it fits OK on the L-series with triple carbs. It has a machined alloy backplate with integral trumpets/airhorns. The outer cover fits into a channel machined in the back plate, and I added some over-centre clips to retain it (original R-Factory design recommended big tie wraps). There's a fine mesh screen on the inlet. It's supposed to be ducted to a point in front of the radiator support panel, but I didn't bother. gav240z 1 Quote Link to comment Share on other sites More sharing options...
theremm Posted October 21, 2015 Share Posted October 21, 2015 On one of my cars I'm using an 'R Factory' airbox originally designed for the S20 engine. I turned it upside down and it fits OK on the L-series with triple carbs. It has a machined alloy backplate with integral trumpets/airhorns. The outer cover fits into a channel machined in the back plate, and I added some over-centre clips to retain it (original R-Factory design recommended big tie wraps). There's a fine mesh screen on the inlet. It's supposed to be ducted to a point in front of the radiator support panel, but I didn't bother. That looks good Alan. I have been looking out for an S20 box (complete setup) for a while and was hoping to flip it over and use all the air filter accessories up front too. Hard to come by one for sale though. Quote Link to comment Share on other sites More sharing options...
HS30-H Posted October 21, 2015 Share Posted October 21, 2015 That looks good Alan. I have been looking out for an S20 box (complete setup) for a while and was hoping to flip it over and use all the air filter accessories up front too. Hard to come by one for sale though. OEM airbox for S20 (432 type) would be quite tricky to flip over and use on an L-series 6 I think. They are quite assymetric, and have integral trumpets/air horns inside, attached to the outer cover. It would need a fair bit of faffing around to re-jig it all. It might even interfere with the exhaust manifold. I've got a 432 airbox that I was going to use for my 432-R replica project (even though a proper 432-R wouldn't have had an air box and filter system...) and I modified it to fit bigger trumpets (to suit the 45DCOEs instead of the OEM 40PHH Mikunis). Then I chickened out (or manned-up, depending on how you look at it) and decided to run without. Quote Link to comment Share on other sites More sharing options...
locklock Posted October 30, 2015 Share Posted October 30, 2015 https://www.jauce.com/auction/v435348304 430 usd and still bidding.. Quote Link to comment Share on other sites More sharing options...
Administrators gav240z Posted October 30, 2015 Author Administrators Share Posted October 30, 2015 Last 1 that was listed sold for 100,000 YEN within a few minutes of being listed at that buy it now. Quote Link to comment Share on other sites More sharing options...
Administrators gav240z Posted November 20, 2015 Author Administrators Share Posted November 20, 2015 I'm just going to park these images here because Craigslist deletes images and postings quickly... http://sfbay.craigslist.org/nby/cto/5256022426.html I can't tell if it's fiberglass mould or not. However it looks well made and certainly looks at home in the engine bay. -Custom 3" Ram Air/cold air intake hand from sealed early air cleaner housing. Refinished inside & out in a matched original orange with gold flake added(subtle but GORGEOUS, metallic only pops in the sun, has a factory look to it) Quote Link to comment Share on other sites More sharing options...
locklock Posted December 6, 2015 Share Posted December 6, 2015 (edited) OEM airbox for S20 (432 type) would be quite tricky to flip over and use on an L-series 6 I think. They are quite assymetric, and have integral trumpets/air horns inside, attached to the outer cover. It would need a fair bit of faffing around to re-jig it all. It might even interfere with the exhaust manifold. I've got a 432 airbox that I was going to use for my 432-R replica project (even though a proper 432-R wouldn't have had an air box and filter system...) and I modified it to fit bigger trumpets (to suit the 45DCOEs instead of the OEM 40PHH Mikunis). Then I chickened out (or manned-up, depending on how you look at it) and decided to run without. Hi alan, i just realised the s20 airbox inlet will be facing inside the firewall instead of outside if installed to a L series engine. How do you rectify it? Can it be installed upside down? Edited December 6, 2015 by locklock Quote Link to comment Share on other sites More sharing options...
HS30-H Posted December 6, 2015 Share Posted December 6, 2015 Hi alan, i just realised the s20 airbox inlet will be facing inside the firewall instead of outside if installed to a L series engine. How do you rectify it? Can it be installed upside down? The OEM 432 airbox will only fit the S20 engine layout. You can't flip it upside down and use it on an L-gata engined car because the shape is asymmetric. Not a problem for me as I was going to use it on an S20 engine. The one you can flip upside down is the R Factory aftermarket airbox for the S20 engine (see post #33) which can be fitted to the L-gata with triple carbs and the outer cover simply flipped upside down. It's symmetrical, so that's not a problem. It doesn't foul the battery and you can take the cover on and off with no clearance problems. gav240z and locklock 2 Quote Link to comment Share on other sites More sharing options...
locklock Posted December 7, 2015 Share Posted December 7, 2015 Oh okay, i was thinking you going to put it in L engine. Do you think this airbox will fit on L engine? Quote Link to comment Share on other sites More sharing options...
Administrators gav240z Posted December 7, 2015 Author Administrators Share Posted December 7, 2015 That is a Prince Skyline GTB air box. http://www.viczcar.com/forum/topic/11530-fs-76-260z-2-seater/?p=136854 http://bringatrailer.com/2008/10/17/rare-jdm-sedan-1966-nissan-prince-skyline-gt-b/ You will need to modify the backing plate otherwise I believe the airbox sits high and can foul on the bonnet. Personally I'd feel a bit awkward cutting up a rare airbox... But maybe I'm odd? Quote Link to comment Share on other sites More sharing options...
locklock Posted December 7, 2015 Share Posted December 7, 2015 Nah u are not odd.. I think the same too.. I would prefer the oem 432 airbox tho.. But too bad wont work.. Sigh Quote Link to comment Share on other sites More sharing options...
mossy Posted December 7, 2015 Share Posted December 7, 2015 If you love your induction noise from triples you'll lose a lot of it by fitting a airbox. gav240z 1 Quote Link to comment Share on other sites More sharing options...
Administrators gav240z Posted June 9, 2016 Author Administrators Share Posted June 9, 2016 For those looking at modifying an airbox for triples. A good example can be found in this build thread. http://www.viczcar.com/forum/topic/11421-a-lime-240z-spruce-up/?p=178531 KatoKid and scott 2 Quote Link to comment Share on other sites More sharing options...
Administrators gav240z Posted July 22, 2017 Author Administrators Share Posted July 22, 2017 R-factory website if anyone is looking for the airbox Alan used. http://www.r-factory.com/ I can't see the airbox on their website, Alan is it a case of asking them for it? I just wanted to get an idea of what price it was. Just got Triples on my 72 but want a nicer looking Airbox. http://www.viczcar.com/forum/topic/11823-evie-1972-datsun-240z/?p=194501 Quote Link to comment Share on other sites More sharing options...
HS30-H Posted July 22, 2017 Share Posted July 22, 2017 R-factory website if anyone is looking for the airbox Alan used. http://www.r-factory.com/ I can't see the airbox on their website, Alan is it a case of asking them for it? I just wanted to get an idea of what price it was. Hopefully they are still making them. You'll probably need to ask. gav240z 1 Quote Link to comment Share on other sites More sharing options...
Riceburner Posted July 22, 2017 Share Posted July 22, 2017 I got mine late in 2013, price of the air box only was 36,750yen. Shipping and handling fees were extra. gav240z 1 Quote Link to comment Share on other sites More sharing options...
Administrators gav240z Posted July 25, 2017 Author Administrators Share Posted July 25, 2017 On one of my cars I'm using an 'R Factory' airbox originally designed for the S20 engine. I turned it upside down and it fits OK on the L-series with triple carbs. It has a machined alloy backplate with integral trumpets/airhorns. The outer cover fits into a channel machined in the back plate, and I added some over-centre clips to retain it (original R-Factory design recommended big tie wraps). There's a fine mesh screen on the inlet. It's supposed to be ducted to a point in front of the radiator support panel, but I didn't bother. By the way Alan, are you running 40mm Solex carbs on your L24? Quote Link to comment Share on other sites More sharing options...
HS30-H Posted July 25, 2017 Share Posted July 25, 2017 By the way Alan, are you running 40mm Solex carbs on your L24? On this engine, with the R-Factory airbox, they are indeed 40PHHs: theremm, zed74 and gav240z 3 Quote Link to comment Share on other sites More sharing options...
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