2jz929 Member 23 Member For: 16y 2m 11d Gender: Male Location: Central QLD Posted 09/02/10 10:32 AM Share Posted 09/02/10 10:32 AM As per title, was wondering at what point the standard 3" intake piping begins to restrict power, and more power would be gained by using a larger/shorter intake pipe (cold air of course). Cheers. Link to comment Share on other sites More sharing options...
senna_T Forged Member Lifetime Members 15,818 Member For: 18y 22d Gender: Male Location: SW Sydney Posted 09/02/10 10:52 AM Share Posted 09/02/10 10:52 AM Depending on the boost you are running it may already be a restriction.For stock power/boost then it is ok, but there are some bottle necks like the under battery pipe, and the standard crossover unit.What model have you got and what are you running? Link to comment Share on other sites More sharing options...
2jz929 Member 23 Member For: 16y 2m 11d Gender: Male Location: Central QLD Posted 09/02/10 11:14 AM Author Share Posted 09/02/10 11:14 AM Sorry, I meant from air filter to turbo. I havent got a falcon but similar setup and turbo and currently have ~1m of 3" piping leading to the turbo. Was wondering if this style of intake would be a restriction on a falcon at 350rwkw. Link to comment Share on other sites More sharing options...
senna_T Forged Member Lifetime Members 15,818 Member For: 18y 22d Gender: Male Location: SW Sydney Posted 09/02/10 11:43 AM Share Posted 09/02/10 11:43 AM 3" straight to the turbo without any bottle necks wouldn't really be a restriction, however majority of the guys running over 15psi see gains from running a 4" intake reducing to 3" at the mouth of the turbo So I take it you have a 2J in a mazda 929? Any pics? Link to comment Share on other sites More sharing options...
2jz929 Member 23 Member For: 16y 2m 11d Gender: Male Location: Central QLD Posted 10/02/10 05:40 AM Author Share Posted 10/02/10 05:40 AM Cheers mate, might chuck the 3" stuff out then and start again with 4". Couple of quick pics. Engine Car Link to comment Share on other sites More sharing options...
b-rad Donating Members 257 Member For: 16y 9m 16d Location: townsville Posted 10/02/10 05:50 AM Share Posted 10/02/10 05:50 AM nice bonnet holding pole.......nice sleeper though what power you chasing ? Link to comment Share on other sites More sharing options...
2jz929 Member 23 Member For: 16y 2m 11d Gender: Male Location: Central QLD Posted 10/02/10 06:23 AM Author Share Posted 10/02/10 06:23 AM Yeah, got new gas strut for it now, damn I hate it when the bonnet cant hold itself up. On that turbo just chasing around the 360-370rwkw mark as that's about the most it can deliver. Ive ported out the wastegate on it, and have fitted a 10psi actuator for the time being. The engine has a ported and polished head with big cams. Once its set up with this turbo and running decent times, ill change up to a gt4094r, but hoping this will get it to 125mph. At the moment I'm just trying to make sure there's nothing in the system that will restrict it. Link to comment Share on other sites More sharing options...
b-rad Donating Members 257 Member For: 16y 9m 16d Location: townsville Posted 10/02/10 07:33 AM Share Posted 10/02/10 07:33 AM that's pretty spastic power for such a sh*t looking car (no offence) .any chance on seeing a video ? Link to comment Share on other sites More sharing options...
2jz929 Member 23 Member For: 16y 2m 11d Gender: Male Location: Central QLD Posted 10/02/10 07:46 AM Author Share Posted 10/02/10 07:46 AM No offense taken, but the only way to build a true sleeper is to use something that isn't fast, has never been fast, doesn't look fast, and doesn't get noticed when its not going fast I love the shape, but that's just me. No videos yet as its still not engineered, want to sort everything first. I did drive it 850km to my new house, so it's ready, just not how I want it. Will make a thread somewhere when its actually run a number. Link to comment Share on other sites More sharing options...
MiKa Donating Members 4,243 Member For: 18y 6m 8d Gender: Male Location: Melbourne, VIC Posted 15/02/10 04:04 AM Share Posted 15/02/10 04:04 AM (edited) sh*t dude.. thank fark your in QLD lol if you tried to race me on the street I would just laugh and that laugh would turn into a WTF is that as you beat me hahaha. Dont think I've seen a better sleeper..But to answer your question, I've just re modelled my engine bay, shortened the pipework from the filter to the turbo by half if not 3/4, enclosed a pod filter in a box, and its 3" the whole way... The spool is twice as fast I reckon, just swings to 2000rpm and yeah the rush of boost starts.. Awsome mod to do.. Edited 15/02/10 04:08 AM by MiKa Link to comment Share on other sites More sharing options...
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