Jump to content
SAU Community

Recommended Posts

Sydney Kid FTW

Why Side feed?

Because the standard R33 Injectors are Side Feed. :S

I am implying that once at this level of mod where the stock intake manifold is totally inadequate, we might have top mount injectors and bigger throttle bodies.

R

BTW. The response time in this forum is very fast.

LOL... You crack me up. We aren't bypassing them...I hadn't looked closely at all at the unit till a 2 days ago. The casting will be the same at the base. Wow...for a bunch of guys who have an engine that forces them to route pipe all over their engine bay in an unattractive manner you sure are skeptical. Or you can keep on cutting up manifolds and welding them together...till you run out of manifolds.

Thanks for your help anyway.

R

u have no idea buddy goodluck with it ...oh and here's another thing there are throttle bodies already on the market so untill u can actually prove anything i suggest u do a lot more research. here's your competition so the product has to be up to standard...

1. GREDDY

2. PLAZAMAN

3. HYPERTUNE

4. MICKSMETAL CRAFT

5. JUN

there's other brands also but cant think of the names so far...but the ones ive mentioned are pretty much the leaders in plemun's....sorry if ive missed anyone...

also bass junky there is no point havin it adapt to the standard traction control unit as it is more of a hinderence, when u reach higher power levels the traction control is no good due to flow rectriction...tried and tested on r34 with neo engine i meant..

cheers

Yeah I know about the higher power levels thing.

I turn my TC off everytime I get in the car, but, from a marketing point of view, it's good to be able to make everything work together, plus I'm not sure what happens if you remove the TCS throttle body with the computers...

Also, nobody has yet thought of trying to adjust the amount of throttle closure that the TCS system.... Maybe modifying the signal to that could introduce a much more sophisticated traction set up.....

Something I've been thinking about recently.

Yeah I know about the higher power levels thing.

I turn my TC off everytime I get in the car, but, from a marketing point of view, it's good to be able to make everything work together, plus I'm not sure what happens if you remove the TCS throttle body with the computers...

Also, nobody has yet thought of trying to adjust the amount of throttle closure that the TCS system.... Maybe modifying the signal to that could introduce a much more sophisticated traction set up.....

Something I've been thinking about recently.

i removed the tcs system and the slip and tcs light are always on thats it no problems anywhere else..u could always take the speedo out and remove the lights behind the slip and tcs so it doesnt bother you but up too you i suppose .trying to explain without going into way too much detail..umm haha geez you make it hard but from memory it has 2 butterflies where the tcs system is and when it detects slip the butterfly will close and cut revs..right now what some people have done it actually put a straight pipe through it so no closure this is still retaining standard everything and it works....

you could give that a go ..

but there's no point if your going to get in the car and keep turning it off or if u have an aftermarket plenum...

I am implying that once at this level of mod where the stock intake manifold is totally inadequate, we might have top mount injectors and bigger throttle bodies.

I would not make that assumption, its a very very bad one.

You have got to remember, a portion of customers are going to be the 180/SX platform with RB conversions etc. If you cut that market out your limited before you even begin the game.

Most must use a front facing (as opposed to stock) due to clearance issues more than anything else.

So they will be using stock T/B, stock rail setup in most cases.

I mean, i ran off some great figures on the stock gear (plenum & T/B, fuel rail) and since then people have made more and more... IMO the stock T/B is quite adequate for many applications, as is the stock injector rail setup.

Do you even know the limits of the stock gear? I pushed it over 350rwkw without an issue... so thats above the majority of skyline owners demographic to begin with.

Also, injectors *for the most part* are all direct change over with the stock rail.

Why change the fuel rail/injector setup when you dont have too. Its added cost that most people are not willing to encounter.

And another thing, skyline owners by definition dont have a lot of money *for the most part*.

So its budget mods, cost vs gain. If you force people to change T/B's and injector setup... you will hardly sell anything but to the people with oodles of money.

I dont think you have put enough thought into it as have missed many many things.

I've spent all of 5 mins and i've come up with the above, so im sure there is more points

You really need to have provision for BOTH side feed and top feed injectors. Because:

1. Guys who want/have to do a plenum change, but who want to use the standard side feed injectors. Bonnet clearance reasons and the usual budget constraints.

2. Guys who have already upgraded to aftermarket side feed injectors. For obvious reasons they don’t want to have to go out and buy top feed injectors

3. Guys have don’t have the budget to buy aftermarket side feed injectors, top feed injectors are much easier to get, new or used and cheaper

4. Guys who can’t find the right sized side feed injector for their power target, so they need to use top feed injectors.

5. Guys (like me) who have heaps of RB26 top feed 444 cc injectors that would work great in 260 to 280 rwkw applications. ie; spend the money on a plenum instead of injectors.

It won’t be that hard. A set of alloy o’rings to adapt the top feed injectors to the inlet manifold and a set of spacers for the top feed fuel rail. The manifold itself doesn’t have to be different. When you order you specify “side feed injector” style or “both”, the “both” option costs a bit more of course. That would give you a USP (unique selling proposition) which no one else offers.

;) cheers :huh:

Just to throw in a wildcat what does everybody think of adapting someone elses OEM Inline 6 manifold to the RB20/25 ? Probably little chance of any component carry over but we just may find that OEM millions spent developing a manifold that works may be able to be grafted on to fix this over cam cover TB business .

Does anyone know for example if any of the Toyata X MGE or 1/2 JZ manifolds can be adapted . I believe they are opposite way around to RB but any potential to cut/shut mix/match bits to make something up ?

This probably sounds a little crazy but I'd much prefer an OEM plenum design over the glitzy sheet jobs that fit but are of unknown quantity .

Sorry folks , too much blood in my caffine supply .

Cheers A .

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

    • My guesstimate, with no real numbers to back it up, is it won't effect it greatly at all.its not a huge change in position, and I can't see the air flow changing from in turbulence that much based on distance, and what's in front of it. Johnny and Brad may have some more numbers to share from experience though.
    • Which solenoid? Why was it changed? Again, why was this done? ...well, these wear..but ultimately, why was it changed? Did you reset the idle voltage level after fitment? I'm just a tad confused ~ the flash code doesn't allude to these items being faulty, so in my mind the only reason to change these things, would be some drive-ability issue....and if that's the case, what was the problem? Those questions aside, check if the dropping resistor is OK ...should be 11~14 ohms (TCU doesn't throw a flash code for this) ~ also, these TCU designs have full time power (to keep fault code RAM alive), and I think that'll throw a logic code (as opposed to the 10 hardware codes), if that power is missing (or the ram has gone bad in the TCU, which you can check..but that's another story here perhaps).
    • Question for people who "know stuff" I am looking at doing the new intake like the one in the picture (the pictured is designed for the OEM TB and intake plenum), this design has the filter behind the front bar, but, the filter sits where the OEM duct heads into the front bar, and the standard aperture when the OEM ducting is removed allows the filter to pulled back out of the front bar into the engine bay for servicing, a simple blanking plate is used to seal the aperture behind the filter This will require a 45° silicone hose from the TB, like the alloy pipe that is currently there, to another 45° silicone hose to get a straight run to the aperture in the front bar Question: how will it effect the tune if I move the MAF about 100-150mm forward, the red is around where my MAF is currently, and the green would be where it would end up Like this This is the hole the filter goes through  Ends up like this LOL..Cheers    
    • Despite the level up question, actually I do know what that is....it is a pressure sender wire.  So check out around the oil filter for an oil pressure sender, or maybe fuel pressure near the filter or on the engine. Possibly but less likely coolant pressure sensor because they tend to be combined temp/pressure senders if you have one. Could also be brake pressure (in a brake line somewhere pre ABS) but maybe I'm the only one that has that on a skyline.
    • Pull codes via the self-diagnosis procedure. As far as I can tell this is just a sign of transmission issues but not a code unto itself.
×
×
  • Create New...