RB FAQ

[Tenchuu]

Originally Posted by s13srmadness

with a mount kit in an s14 with a koyo rad will any electric fans fit between rad and motor?
i was specifically curious about altima fans.

if FAL 220's are too thick (witch i found out after buying them) altima fans are WAY too thick. from what i have heard front mount is the best option followed by the ghetto looking 1 pusher and 1 puller setup.

[drift freaq]

Originally Posted by Tenchuu

if FAL 220's are too thick (witch i found out after buying them) altima fans are WAY too thick. from what i have heard front mount is the best option followed by the ghetto looking 1 pusher and 1 puller setup.

Man Tenchuu ,my s13 does not look ghetto and its got the 1 pusher 1 puller setup. Hahahahahaha
Actually my and quote "ghetto setup" will flow more air than a dual pusher setup.

[Tenchuu]

i said ghetto looking, had nothing to do with performance. i just perfer the balenced look of 2 togather vs the staggered 1 push and 1 pull.

[drift freaq]

Originally Posted by Tenchuu

i said ghetto looking, had nothing to do with performance. i just perfer the balenced look of 2 togather vs the staggered 1 push and 1 pull.

hahaha ya and I was referring to ghetto looking. hahhahha the setup does not look ghetto on my s13 hahhahhaha.
I threw in the Performance part just to rib you. hahhahahha
Also all jokes aside. With the S13, there is not enough clearance to run dual pullers, especially if your running air. There is, also limited room to attempt a dual pusher setup on the front side. Hence the push pull setup.
The s14 has a much larger front area, allowing for dual pushers.

P.S. give me a call ken I got a plug I need to send to you.

[Adrian gt]

Originally Posted by drift freaq

hahaha ya and I was referring to ghetto looking. hahhahha the setup does not look ghetto on my s13 hahhahhaha.
I threw in the Performance part just to rib you. hahhahahha
Also all jokes aside. With the S13, there is not enough clearance to run dual pullers, especially if your running air. There is, also limited room to attempt a dual pusher setup on the front side. Hence the push pull setup.
The s14 has a much larger front area, allowing for dual pushers.

P.S. give me a call ken I got a plug I need to send to you.

with the radiator moved forward there is plenty of room for dual pullers

[SYKORB26]

Just to clarify. We've found that the S-14 has plenty of room for dual pushers in front of the AC condenser. However, on the S-13 one of the AC condenser lines interferes on the left side of the car. This limits the size of fans you can run. If you remove the AC condenser, there is plenty of room for dual pushers. Thus, we recommend the push/pull setup for the S13 if you plan to keep AC.

As for pullers, there is only enough room for a very thin single fan on the right side. We only know of two ways to run dual pullers. One is to get rid of the AC compressor and Power steering pump. The other is to notch the radiator support and move the radiator and condenser forward. This goes for both the S13 and S14. Using the Koyo makes any type of puller setup more difficult as it is a very thick radiator.

[joewantstodrift]

does anyone have stock specs and info for the rb25? especially what stock compression should be.

[SYKORB26]

Originally Posted by joewantstodrift

does anyone have stock specs and info for the rb25? especially what stock compression should be.

Are you looking for specs for compression test or compression ratio? Assuming you are looking for specs for a compression test my reference shows:

Standard: 12.2 kg/cm2 (173 psi)
Min limit: 9.2 kg/cm2 (131 psi)
max variance between cylinders: 1.0 kg/cm2 (14psi)

[s13srmadness]

disheartening news.
so can altima fans be wired to push and would they fit in the other side?
what other dual 12" setups would fit and what do peope here reccomend?
i have an s14 with a koyo, but my intercooler is pretty much sandwhiched up against the rad towards the very top.

[s13srmadness]

ok, what do you guys think of dual 10s pushing and a little guy 9" puller?
with a koyo, low temp thermostat, and the n1 water pump.
this is what i think im going to go with. do not think dual 12s can fit for my setup.

[hybrid_eg]

my vote goes to FAL dual pullers and of course no air to make them fit there! but then again, thats just me as i hate air period.. new or used car

[joewantstodrift]

Originally Posted by SYKORB26

Are you looking for specs for compression test or compression ratio? Assuming you are looking for specs for a compression test my reference shows:

Standard: 12.2 kg/cm2 (173 psi)
Min limit: 9.2 kg/cm2 (131 psi)
max variance between cylinders: 1.0 kg/cm2 (14psi)

thanks. you answered my question.

[Tenchuu]

The size isn't the issue there, it is the CFM, if you get a high CFM fan it should do the job

for cooling i am sporting 2 10" HP permacool fans between them both should pull 2500cfm or push 80% of that (2000 CFM) or i can do the alternate thing like Drift freaq said and push/pull 2250 CFM (http://www.perma-cool.com/Catalog/Cat_page16.html) if you can find a 10" that no shit flows 5000 CFM then you would only need one.

[andrewmp6]

whats the biggest turbo that fits the stock exhaust manifold and turbo elbow on a rb25

[Tex Willer]

Originally Posted by andrewmp6

whats the biggest turbo that fits the stock exhaust manifold and turbo elbow on a rb25

Many turbo`s will fit the T3 flange. Like this Precision GT3582R 600hp+

Don`t know of any turbo that will fit std elbow ...6 bolt pattern.

[SYKORB26]

As Tex said, the T3 manifold side is no problem. Only turbos I know of that fit with the factory O2 housing/elbow were the ones sold in the HKS ECR33 GT Sports turbine kit. Most people putting on a very large turbo are willing to deal with some fabrication. Don't expect to find many direct bolt on turbos for this engine.

[Taffy]

Originally Posted by andrewmp6

whats the biggest turbo that fits the stock exhaust manifold and turbo elbow on a rb25

Any T3 or T3/T4 turbo will fit. The highest horsepower, readily available turbo that will bolt on is a T3/T4 with a 67mm compressor. Stage 5 wheel is about the biggest exhaust wheel that you should put in a T3 exhuast housing. A P trim will fit, but is not a good idea.

[Tenchuu]

I just put in 2 10" permacool HP fans and they barley fit in the front.

EDIT they don't push enuff air, they fail at life.

[andrewmp6]

yeah i started looking around i might say hell with it and get a top mount with somthing big

[ka24deturbo]

Hey guys I'm having some problems with the front bottom sway bar. I searched online and found people using washers to lower the sway bar from the oil pan. When I turn I hear the sway bar moving around, is there another alternative that anyone has found? Thanks!

[SYKORB26]

Originally Posted by ka24deturbo

Hey guys I'm having some problems with the front bottom sway bar. I searched online and found people using washers to lower the sway bar from the oil pan. When I turn I hear the sway bar moving around, is there another alternative that anyone has found? Thanks!

What installation kit did you use for the conversion? Using washers may lower the swaybar, but can create a gap between the swaybar bushing and the chassis. This takes efficiency away from your swaybar as it's no longer ridgidly attached to the chassis. We solve this problem by including precision machined aluminum spacers in our installation kit. Unlike washers, these spacers keep your bushings compressed eliminating the problems you are experiencing.
-Gary Narusawa
www.sykoperformance.com

[ka24deturbo]

Not using a mount kit, I used the R32 Cross member, I tried filling the gap with some old bushings but it's still making that clunking noise so I'm guessing that didn't work, would your "precision machined aluminum spacers" work with my setup? How much can you sell them to me seperate from your kit? Do you have a spare stock RB20 ECU you can sell me?

[SYKORB26]

Unfortunately, we do not sell parts seperate from the kit. In addition, our kit is designed for the RB25 and will not work with the R32 crossmember. As for the ECU, please PM me and I'll see what I can do.
-Gary Narusawa
www.sykoperformance.com

[idiot goes sideways]

i know its a litle out of the blue but i wonder how does a s13, with a sixpot rb on the front suspension, feel to drive??
its heaver, okay maybe thats not the big deal but the weight is moving forwards, doesn`t you loose much cornering speed?

[drift freaq]

Originally Posted by idiot goes sideways

i know its a litle out of the blue but i wonder how does a s13, with a sixpot rb on the front suspension, feel to drive??
its heaver, okay maybe thats not the big deal but the weight is moving forwards, doesn`t you loose much cornering speed?

It feels no different than a KA24DE car. A KA24DE is 75lbs heavier than a SR. If you add a turbo setup to KA you wind up at the same weight as the RB i.e. 150lbs heavier than a SR setup.
There is a difference with the RB though, a good 60 percent of the extra weight is actually in the transmission. So its actually a better front rear bias weight balance than a KA turbo car and with the engine set as far back as possible, you really are not putting much more weight over the front struts.
The people that have never experienced the setup like to think and even espouse the idea that its a problem. Its not. Car drives fine and there are several people drifting the cars here in socal and they have not had any problems with loosing cornering speed. In fact you have so much torque and power you can haul ass.

[DrtyRat]

Wow, unless I missed it has anyone posted the hp limits of a stock rb26..I got a friend who's dropping an rb into his 240 and I told him I would try to find out

[R33GTS-T]

i can tell you that since my RB swap the car feels MUCH more.....put together if you will. the car feels considerably more solid and the overall balance of the car is perfectly neutral when out on the autox course (haven't had a chance to road race it yet)

the way my RB is sitting in the car is such that the front of the turbo to the back of the engine is in fact sitting behind the front hubs. i previously had an SR in the car and the car felt less stable, more tail happy, and definitely not as well put together

i hope to be able to get my car weighed next week....i'll post up the results afterwards

- Daniel

[static]

Are the torque specs the same for the mains, rods, and head bolts on the RB engines?

[tecnic1]

tophat mounts + rb20det + kouki s14 = custom o2 senser housing
No way around that, it wasn't even close...
oxygen sensor housing j-pipe turbo dump

[ranger2339]

Gary

Email sent..

Josh