Jump to content
SAU Community

Recommended Posts

  • Replies 44
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

gota a pic of this manifold?

i heard and believe that Greddy makes a manifold like this or use too...,

but stop making it becoz it starves the 5 & 6 Cylinder of air...

(i believe its unavailable anymore) correct me if im wrong.... :)

so since the throttle body being at the front....

air would go from Cylinder 1....to...6

6 getting less air...

so really its not really worth an upgrade...

dont get me wrong....

i too was looking at a forward facing manifold too..

but not if its gonna cause problems or starvation on other cylinders...

plus if think about.................................

nissan Japan put alot of money into developing these engines....

SR's and the RB's..

but esp. the RB26

thats why they got independent throttle-body cables and a front facing manifold...plus for better response...

and thats why the rb20 and 25 have top-side facing manifolds...so air would be divided equally...

and SR have front facing manifold..but only coz they only got 4 cylinder..not 6!!! so 5 and 6 would get starved...

so the manifold would have bein tested & designed perfectly for ur engine...

but doing modifications to the engine would change the basic of these designs..but still....

id stay with the stock manifold..!!!!!!!!!!!!

or try fitting an rb26 manifold..!!!!!!!!!!!

the extra independent throttle-body cables would make a hell of a difference and and a better upgraded!!!!

i believe a few people on SAU have done this upgrade....

but thats just me....

Edited by bumble_bee

well i have one on my R32 and i think its a good upgrade. i gained 30kw after i have my tune to get it running right. i say if u got the money go for it. but other people will say spend ur money on other things. have a look at my dyno sheet attached

cheers

bill

post-15174-1216482220_thumb.jpg

25rwhp and minor midrange for that cost? ... Not worth it in a million years for a street car or mild application IMO.

You'd barely notice that increase after a week, if at all.

You'd have far better gain by saving the money to put an RB25 in there or better parts elsewhere on the car

well... as for me ive kinda ran out of things to do without opening the engine and going 4 another rebuild so this 30kw gain from the manifold looks like a great idea for me as i dont care much for the rb25 rite now and like to b diferent. Thanks 4 the post Jet ill definatly b putting one on in the next few weeks

Agreed, or a .63 gt3071/76. I would only fit a plenum if your shooting for above 300rwkw, in which case you dont really need the additional top end power for an r32 gtst street car, as it will be wheelspinning well before the plenum will start to come into effect.

well i have one on my R32 and i think its a good upgrade. i gained 30kw after i have my tune to get it running right. i say if u got the money go for it. but other people will say spend ur money on other things. have a look at my dyno sheet attached

cheers

bill

Hi mate,

did u have an after market ecu or just the remapped stock ecu?

anyone know if we need any computer upgrade to work with this front facing plenum?

cheers

25rwhp and minor midrange for that cost? ... Not worth it in a million years for a street car or mild application IMO.

You'd barely notice that increase after a week, if at all.

You'd have far better gain by saving the money to put an RB25 in there or better parts elsewhere on the car

You could have saved up some more money and bought a half decent car instead of that POS R31 too.

There is nothing wrong with RB20's you can still make 300rwkw quite easily and they rev a lot harder than 25's and 26's.

I'm sick of hearing everyone talk them down. It's an RB and a damn fine creation.

You could have saved up some more money and bought a half decent car instead of that POS R31 too.

There is nothing wrong with RB20's you can still make 300rwkw quite easily and they rev a lot harder than 25's and 26's.

I'm sick of hearing everyone talk them down. It's an RB and a damn fine creation.

:/

I find it funny when some people on this site can disapprove of other people’s cars/motors, but if it were anyone else they would receive a warning.

To the thread starter, any power gain is a power gain. So if it makes you more power I can’t see it as a downgrade. Plus the standard rb20/rb25 plenum and cross over pipe looks damn right ugly.

If you have the money to buy the plenum and take full advantage of it by getting a tune, by all means go for it.

:/

I find it funny when some people on this site can disapprove of other people’s cars/motors, but if it were anyone else they would receive a warning.

To the thread starter, any power gain is a power gain. So if it makes you more power I can’t see it as a downgrade. Plus the standard rb20/rb25 plenum and cross over pipe looks damn right ugly.

If you have the money to buy the plenum and take full advantage of it by getting a tune, by all means go for it.

Not only that but if you were to upgrade even further, the plenum would/could be an even greater asset.

If you love your 20 and want to mod it, do it. I was told to not bother also when I was doing mine but I persisted with it and ended up enjoying the car even more because it could still dust a 600cc motorcycle.

Do what you love, stick with what you got.

hey mate,

I had one of the plazmamann plenums on my car. It was a RB25 and i have a mate with one on a RB20. we saw good gains out of both and while i cant quote his power increase post manifold, i can tell u i picked up 20rwkw and some nice throttle response.......... here is my graph.....

done on stock injectors and turbo too......

cheers

gc

post-29232-1216555408_thumb.jpg

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

    • Yeah i found that alot of parts can be wrong or "very" hard to get the real right one. I already bought some brakes years ago on me "old" GT calipers and they were wrong too 😄  I told them too. Even send them pictures...but they said "EBC catalogue has them on my car... So i dont know what their answer will be. I call monday them and let them know that they are really not on my car. If they were they would be already on a car...
    • Welcome to Skyline ownership. Yes, it is entirely possible parts websites get things wrong. There's a whole world of inaccuracies out there when it comes to R34 stuff (and probably 33 and 32). Lots of things that are 'just bolt on, entirely interchangable' aren't. Even between S1 and S2 R34's. Yes they have a GTT item supposedly being 296mm. This is incorrect. I would call whoever you got them from and return them and let them know the GTT actually uses 310mm rotors. Depending on where you got them from your experience and success will obviously vary.
    • Hi...a bit a "development" on the brakes. I spoke to the guys where i get brakes from...and they are saying that 296mm EBC are for R34 GT-T. I then went to their site: https://www.ebcbrakes.com/vehicle/uk-row/NISSAN/Skyline (R34)/ and search for my car(R34 GT 1998 - it has GTT brakes) and it show me this USR1229 number and they are rly 296mm rotors... So now iam rly confused... The rotors i have now on the car are 310mm asi shown... So where is the problem? Does the whole EBC got it wrong or my calipers are just...idk know what?  
    • Oh What the hell, I used to get a "are you sure you want to reply, this thread is XX months old" message. Maybe a software update remove that. My bad.
    • This is a recipe for disaster* Note: Disaster is relative. The thing that often gets lost in threads like this is what is considered acceptable poke and compromise between what one person considers 'good' looks and what someone else does. The quoted specs would sit absurdly outside the guards with the spacers mentioned and need  REALLY thin tyres and a LOT of camber AND rolling the guards to fit. Some people love this. Some people consider this a ruined car. One thing is for certain though, rolling the guards is pretty much mandatory for any 'good' fitment (of either variety). It is often the difference between any fitment remotely close to the guards. "Not to mention the rears were like a mm from hitting the coilovers." I have a question though - This spec is VERY close to what I was planning to buy relative to the inboard suspension - I have an offset measuring tool on the way to confirm it. When you say "like a mm" do you mean literally 1mm? Or 2mm? Cause that's enough clearance for me in the rear :p I actually found the more limiting factor ISNT the coilover but the actual suspension arms. Did you take a look at how close those were?
×
×
  • Create New...