justified2.4

I am doing some brainstorming, trying to see what may be causing my hesitation at 4k-4500 RPM, thinking maybe VTC is part of the problem. When exactly does it kick in on the RB25det Series I? Cheers. Justin

still have hesistation issues so my numbers are low.

sorry, its the only file I have, not even my site, I had a friend upload it on his site.

right click and save as

I recommend the Greddy Plenum as the R & D that has gone into that unit, the ergonomics of the location of sensors and it has been designed to prevent leaning of cylinders.

This dyno graph shows my hesistation is between 4000-4500 rpm, waiting for the A/F ratio curve

if it is in fact a fuel pump problem, it should show the A/F ratio lean at the point of hesistation right?

http://forums.freshalloy.com/ubbthreads/sh...sb=5&o=&fpart=1

Silvias come stock with 4cyl mainly SR20 and CA18, in the US here we got the KA24de (non turbo). Anyone with 6cyl did the swap. But yes I understand this is slow, I have had some problems with the car so I know there are issues. I should be running mid 13's. I still have the stock downpipe and cat so that is an issue. Also the 4.36 gears are not good for top end, I am going to switch back to 4.08 soon. Have to go thru and check sensors, also put some better grounds in. I have only had the car running for a few weeks now and untuned, so it is to be expected that the car is not going to run perfect just yet.

Agreed, top end suffered greatly, not sure what exactly is going on, have to go thru and check all sensors per the FSM and see what is going on, I have a loss of power somewhere.

I decided to take the s14 to the track for the first time today, very disappointing times, especially considering the weight differences between the s14 and r33. First the mods: -r180v LSD from CA18det (possibly hurt my top end) -3" Blitz Nur Spec cat-back exhaust -custom straight runner intake manifold -Isuzu NPR front mount intercooler -2.5" aluminum intercooler piping -Greddy Profec B Spec II -Sheepdog Prof BOV All day I was running between 8-11 psi boost. My best run was as follows: r/t= 1.697 60 ft= 2.047 330 = 6.063 1/8= 9.269 @ 77.89 MPH 1000 =12.060 1/4= 14.396 @ 92.38 MPH as I said, very disappointing, although much better than my stock times with the KA24de motor 16.3 1/4mi.

here is a pic of the custom intake I bought from a guy here in the US, we were working on making a plenum that just bolted onto the lower half of the manifold but I got impatient. more pics here

Many risks listed here such as A/F ratios effected on the front cylinders as well as adverse effects on the rear cylinders... However many Nissan engines, (i.e. GT-R, Silvia, etc) all use straight runner style plenums as well as the Greddy and other aftermarket intake plenums. My argument is that these cars show little to no issues using these intake styles, although I do agree, the GTS-t as well as the Toyota Supra in various models utilize this center oriented intake manifold so there must be some reason why they opted to use this design. But I feel theoretically that the straight runner should not show a significant difference, especially when more airflow provided via front mount intercooler and typically larger diameter piping when changing over to the straight forward design. Off topic, can those that have them post pics of completely custom intake plenums on the GTS-t, including the sub-zero and shop fabricated. I have one that was made by a guy here in the US that I will post this week once I get it.

"Holy intake manifold, Batman!" Very nice intake manifold plenum, who made that one for you?

heifongliu, I think you have the Mine's confused with Apex Power FC, the Mines would not have a hand controller.

Cost I would think to be $400 USD max. Yeah shipping can be expensive sometimes to Australia, just depends on what you use.

Steve: not too much clearance, but its just right with the custom mounts I used, we are working on a custom intake plenum for the RB25det that will bolt onto the lower half of the intake manifold made out of polished aluminum, the flange is being blueprinted and CNC'ed if anyone is interested in purchasing one.

wired money or by paypal or some sort of service I suppose

how much shipped to the US for FCD?

I finally have my RB25det in the engine bay of my s14, still working on wiring and I/C plumbing but here is progress so far: pics

I have a steering rack here in the US if you were willing to pay international freight.

any pics?

my understanding is that in Australia you guys got the glass headlights on the early model s14, does anyone know where I can find these?

I would be in, if they would be willing to ship to the US, actually I would buy a few sets, I am sure there are some people here that may be interested.

If you guys find someone who can make them and sell them cheaper, let me know. I would be interested.