Jump to content
SAU Community

Recommended Posts

i'm soon to be getting a fmic and wondering if is it worth getting a frount mount plenum at the same time or leave the stock one as it is.would like to know about airflow better or worse and temparture change does it keep it cooler as it's not going over the engine or will it stay the same temp.also what brand and cost would i be lokking at for an rb25det

cheers any help would be muchly appreciated

Link to comment
https://www.sau.com.au/forums/topic/130377-question-about-fm-plenum-and-fmic/
Share on other sites

I made 270rwkw on pulp using the stock item.

Great response, no issues

There is a LOT of info regarding the viability of plenums etc.

However, in my opinion (as with after market exhaust manifolds) i feel the money can be spent elsewhere long before the need for a plenum has arisen.

I

There is a LOT of info regarding the viability of plenums etc.

i've search all the forums in here and couldn't find anything on it

might do this at a later stage then

dude check out:

www.plazmaman.com.au

a mate just installed one of their plenum and piping kits for RB25, one of the best looking product i've seen.

cheers dude gives me a bit of an idea

Use the original plenum and heat wrap the piping from the cool side of the intercooler to the plenum. Works an absolute treat in keeping temperature down. Forward facing plenum IMO is really pretty pointless "wank" factor sort of execise. I would really only use one in the case of a conversion where motor height was an issue. However I have heard of the Greddy one making some minor gains but again its not really worth it for the price. As R31nismoid said money can be spent a lot better elsewhere

yeah loking at about 3200 for kit which includes fmic,plenum,gaskets etc i can think of a lot of other stuff to spend the money on

might just try the heat wrap first

thanks for the replys

contact Ariel@cpc plenums, he is ISL33P on these forums, he made my plenum and it has 80mm billet throttle body, with the bigger turbo its alot more responsive, and flows exceptionally well, and wasnt that expensive either

ben...

contact Ariel@cpc plenums, he is ISL33P on these forums, he made my plenum and it has 80mm billet throttle body, with the bigger turbo its alot more responsive, and flows exceptionally well, and wasnt that expensive either

ben...

Got a pic. :(

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Hi Guys, Does anyone know any aftermarket part numbers for a starter motor to suit the VQ25DET? I can find lots of alternative part number for the VQ35DE, which I assume would fit, but there is a lot of conflicting information out there. Thanks..
    • I don't understand how this hasn't boiled down to - Upgrade the turbo when you have everything required. ECU, injectors, fuel pump, turbo, etc. Do it all at once.  If you don't have everything required, just enjoy the car as it is and keep saving up your pennies. 
    • Sounds like you've got an interesting adventure ahead here with local support if you have trouble! My guess is that, unboosted, you will be OK with a small upgrade like -9. What will happen is that once the stock ECU sees more airflow than it expects it will add a heap of fuel and pull a heap of timing to be safe because it can't understand how it could get that much air without there being an issue. You will see clouds of black smoke and it won't pull hard through the midrange and top end. So, overall it will be a bit frustrating but should be OK. If you are still nervous set the base timing back 2o through the CAS, but it will be even more sluggish everywhere. As said above through...this is not my guarantee your engine won't be blown into a million pieces, leaving you looking for very hard to find parts A better idea is get a computer with logging ASAP, wire in a wide band O2 sensor and a use remote tuner. I've done multiple cars this way and while it is not as good as a specific tune on a dyno they can get it 90% right. I'd suggest if you can afford an R33 GTR these days you can afford an ECU and tune. And if you can't afford that you sure won't be able to afford the rebuild if it goes bad in the meantime,.  
    • Yeah it would be nice if someone took the time to put that sort of information together, but there are a lot of variations in looms. I think you are making this way hard for yourself if you just want to get it running....sourcing an SR20 with the right wiring will be a billion times easier than matching the RB loom to an S15 chassis. If you do end up going this way, you just need to trace every wire in the loom with a multimeter, 95% of them will go to a location you can confirm at the ECU.....and then post it up for the next person who needs it  
    • Just top it up with water, and keep a general idea of how much you added. It is normal for water to be pushed into and pulled out of the reservoir through the cap, and it should not be more than half full or it will be likely to overflow when hot. Any decent mechanic can do a pressure test of the cooling system to confirm if you have a leak. Keep in mind if it is only leaking a little and when hot it may well evaporate before you see it hit the ground
×
×
  • Create New...