Slide Industries Front Facing Inlet Manifold (Rb25)

[Crazy Xav]

as some of you may know I'm doing a build on my R33 GTS25T 2 door.

currently just a bare engine in the bay atm so ive purchased many parts.

today i recieved my inlet manifold i bought off ebay.

slide industries is the company i purchased from, owned by drifter Ryan Cummings

from what I understand they get them from china and do a thorough inspection of the product.

First impressions unboxing.

Good packaging, everything covered.

overall inspection, good design, good quality, no gaps no casting out of place. inside is really clean and smooth but I highly recommend you always give a thorough clean to any cast products you plan on running.

all the galleries line up, came with all fittings. only thing missing was a throttle body gasket, got some gasket paper and sealant to do the job.

Only got a couple of pictures as I wont be instaling it until my oil filter relocation kit and oil cooler get fitted.

Rough test fit

going to need a new washer bottle, pretty sure ill use an R34 one.

Edited July 16, 2012 by Crazy Xav

[R31Nismoid]

overall inspection, good design,

Love to know how you can tell a good design just by looking at it and not actually doing any testing!

Otherwise, looks nice and shiny.

[Crazy Xav]

more or less fitment wise, i was expecting to have to get it machine out to line up with the ports on the the head. but did some fitment tests and all lines up so should flow reasonably well.

I will definitely get the face machined as a safeguard. I dont expect any performance increase what so ever. more of a convenience thing (less piping & easier to work on)

Looks fairly simple to install also, but for reference here is what ill be going by.

http://www.skylinesaustralia.com/forums/topic/181826-how-to-greddy-style-plenum-install/page__hl__plenum

[Crazy Xav]

Upon removing old inlet manifold (hours and many swears later) one of the heater hoses broke, which happened to be the only non nissan hose, definitely using all nissan genuine hoses.

may paint it black if it shouts "defect me" lol.

[TiTAN]

Love to know how you can tell a good design just by looking at it and not actually doing any testing!

Otherwise, looks nice and shiny.

other than it just being a carbon copy of the greddy item?

[TiTAN]

I will definitely get the face machined as a safeguard. I dont expect any performance increase what so ever. more of a convenience thing (less piping & easier to work on)

you will find its the oposite, everything on the intake side of the engine (under the intake) is now harder to get to and work on. i have and have had the greddy intake for years, prepare to swear at the car any time you need to do something under there.

[Crazy Xav]

Damn! lol. i swear enough at this car as it is.

was an absolute b*#ch to remove the standard one, as the car had the cruise control module and alarm siren right next to the inlet manifold.

they have been moved (cruise removed) and oil filter relocation going on as it was already a big job gettng to the oil flter without covering everything.

Have you ever had to do a starter motor with the GReddy fitted?

[Dajae]

Makes changing spark plugs a breeze did you go with the stock size throttle body, or a bigger size? From what I understand, no real performance benefit with either fhe bigger TB.. Just a more touchy throttle feel, and the ability to flow more air, with less of a pressure drop, and a drop in temp.

Going off the venturi effect anyway

[StevenCJR31]

Can i ask how much you paid for the manifold?

[Crazy Xav]

from what ive read it can make throttle response doughy down low but improve mid-high range?

It came with a 80mm throttle body. being aftermarket there is no where for tps sensor? hopefully this wont effect much as I'll be using a wolf ecu.

Paid $700 for the kit, there is a fair few cheaper ones, but you have to source nipples and hoses.

[Simon-S14]

you will loose a fair wack of midrange torque

[gotRICE?]

Have you ever had to do a starter motor with the GReddy fitted?

You can get the starter motor out from under the car.

[Crazy Xav]

Yeah its just a b!+ch to do! that top bolt.. so many grazes and my neighbours asking me to stop yelling lol.

Yeah ive read you loose a fair bit of mid range. Pretty annoyed i have to cut a hole under the washer bottle, as it already has a FMIC and the hole has been cut to the side. But its all a learning experience i guess.

[Dajae]

You could try putting in a machined spacer plate between the plenum and head. Ive read of guys thinking this could counter-act some of the loss in midrange. Are you running e85?

Going from 98 to e85, personally I think the difference in midrange wont be overly felt, as the fruit juice would bring up the midrange anyway.

As for the throttle being doughy down low, there is a bit of a misconception about this.. You have to remember that with the bigger throttle body, each degree of movement compared to the stock item, is actually opening a larger area = more air for a given movement = more power due to more combustion = a very touchy throttle.

Turbo size, etc, also plays a big part.

[Crazy Xav]

Ive also heard of the spacer idea, as the longer runners on the standard item are what make it so balanced. not sure if ill be going E85 yet, going to be mainly street driven and tbh going from a standard tune to whatever the end result is ill be happy.

The turbo is a Hypergear ATR43. G2.5 profile. unsure of exact specs. Thankyou to everyone who suggested I get one of these turbos

[KiwiRS4T]

Check the flange with a straight edge and pressure test before fitting. Buy or make an adapter and use your stock throttle body and TPS (sell the 80mm one to get a few $$ back).

[Dose Pipe Sutututu]

Yeah its just a b!+ch to do! that top bolt.. so many grazes and my neighbours asking me to stop yelling lol.

Yeah ive read you loose a fair bit of mid range. Pretty annoyed i have to cut a hole under the washer bottle, as it already has a FMIC and the hole has been cut to the side. But its all a learning experience i guess.

I wonder if there is anyway possible to avoid cutting a new hole and reusing the hole previously cut, I am also thinking of moving to an aftermarket plenum (purely because I want to lol).

It seems there is enough room to run a 45 degree silicon pipe then straight down and back into the existing cut hole.

Does anyone have a photo?

[gotRICE?]

I dont see why not. The less holes the better i say.

This looks kinda like what your after? Cred to photo owner..

[Dose Pipe Sutututu]

exactly what I was look for, so it is possible.. ooooooooooo

[Crazy Xav]

That is a sensational looking engine bay! wish mine was that shiny, so much dirt lol.

I dont think i can do it with mine, the cheap, big throttle body is a bit longer than the setup on that GReddy.