what type of gas do you use

[rotorex93]

for all the GTR owners in the US, i was wondering what type of fuel you use? I'm asking cuz i'm seriously considering an rb26dett swap into my 240z. I am wondering if there is a way to tune the rb or the ecu so that the engine can run on california 91 octane. if not, what alternatives are there?

[Forsteen]

Get the highest octane available. The RB26 Engine along with all the rest of the Skylines were made to handle the high octane. Putting the low octane crap is doing your car injustice. If you gonna put an RB26DETT in you have the funds to do then you have the funds to get the highest octane.

[tyndago]

They will run ok on 91 octane...... just dont go crazy on boost ... dont use a Japanese ECU that has been tuned...

If you use a Power FC and tune it for 91 - no problems... stock ECU and run stock boost - no issues.... start cranking the boost - you had better be putting good fuel in it...

[SkylineUSA]

Highest octane you can get, just remember its not the octane that get you more power, it the ability to adjust your timing without detonating that gets you more power.

I run 94.

[tyndago]

Honestly - higher octance can mean less power....

It burns slower so you dont get a complete combustion.

I heard of going from VPC16 to VP 104 unleaded octane - and with retuning made another 20 hp on the dyno.

But thats going from 117 octane fuel to 104 octane fuel..

[Evomaniac]

92 octane is fine, just richen the fuel going to the engine to prevent detonation due to the increase in boost, if it's a r33 gtr engine leave it at 0.6 bar, you could crank it up to 1.0 but that's if you get everything needed to prevent the detonation.
-Dave

[tyndago]

Originally posted by Evomaniac
92 octane is fine, just richen the fuel going to the engine to prevent detonation due to the increase in boost, if it's a r33 gtr engine leave it at 0.6 bar, you could crank it up to 1.0 but that's if you get everything needed to prevent the detonation.
-Dave

How do you richen the fuel going to the engine ?

Whats the difference between the R33 engine and the R32 engine , the R34 engine ?

Whats needed to allow you to boost up to 1.0 bar ?

[Evomaniac]

1.getting a aftermarket ecu,a aftermarket fuel pump, fuel pressure regulator, aftermarket fuel rail with bigger injector's,or a fuel cell if you're a racer,etc.
2.with the r32 engine you can raise the boost up to 1.0 bar safely with very minor mod's,with the r33 you can raise it with the above sugestion's, with the r34 you can raise it to 2.0 with a few mod's, in the r34 the MFD's(Multi Function Display for those of you who don't know) boost gauge can read up to 2.0 bar so you can easily raise it up with a few mod's.
3.you need the 1. suggestion's to safely crank it up,hope it help's.
-Dave
Let's talk skyline, oh can't understand can ya?then I guess we'll never communicate.

[tyndago]

Ok first off - you really shouldnt comment on something you really have no hands on experience with. I did the legalization on about 60 GT-Rs . I have driven and prepared the 2 fastest GT-Rs in the US. I have taken GT-R's R32s , R33's and R34's very far apart - and put them back together...

Originally posted by Evomaniac
1. injector's,or a fuel cell if you're a racer,etc.

Fuel cell does nothing to richen up the fuel mixture...

Originally posted by Evomaniac
2.with the r32 engine you can raise the boost up to 1.0 bar safely with very minor mod's,with the r33 you can raise it with the above sugestion's, with the r34 you can raise it to 2.0 with a few mod's, in the r34 the MFD's(Multi Function Display for those of you who don't know) boost gauge can read up to 2.0 bar so you can easily raise it up with a few mod's.

There is no real internal difference between an R32 , R33 or R34 engine. There are some minor things , but nothing that has a great overall effect.

I am driving an R34 right now . The stock boost gage goes to 1.2 bar... with the Nismo add on you can read up to 2.0 bar... but that has nothing to do with how much boost the engine can handle.

And honestly its not boost - its the physical limits of the motor... boost is just a number.

Originally posted by Evomaniac
3.you need the 1. suggestion's to safely crank it up,hope it help's.
te.

You can run 1.0 bar on an R33 - no issues with stock ECU and good maintainence

[Evomaniac]

I have been drag racing for a few year's, I'm no pro but I know the lingo and fuel cell's do help out because you are burning more fuel with the increased boost (on the turbo's) and the fuel cell supplies more fuel to prevent detonation.
the mfd read's up to 2.0 STOCK I don't know what you're talking about. :o
I know you can raise it up safely with everything stock, but just to be more cautious you should modify the engine.
-Dave

[flylwsi]

do you know what 2.0 bar is?



do you know who tyndago is?

do you know who shawn morris is?

oh wait, it's the same guy.

he used to work at motorex and legalize skylines.

don't be an ass.

and since when does a fuel cell increase the "richness" of your fuel...

he asked a few questions...
what do you need to do to get x boost in r32/33/34.

you didn't answer him....

you've been drag racing for a few years, so that obviously means you know all there is to know about skylines...

so you feel the need to look stupid talking down one of the few guys in the country that has had his hands on 1, not to mention the fastest ones in the US?

and you give bs answers to boot?

come on now...

[flylwsi]

oh, and a fuel cell is a gas tank.
it doesn't provide any more fuel.

you need to upgrade your fuel pump to get more fuel out of it.

fuel cells are there for safety, not getting more gas to your motor.

if you pour a gallon of gas through a funnel, and it gets through at say, 10 liquid psi, and then you pour a bigger quantity of gas through the same funnel, guess what...

it's still moving at the same rate.

b/c it's not the container. it's how you get things in/out of it.

[flylwsi]

in regards to the topic...

the cost of putting an rb26 into a 240 is going to be pretty pricey...

go to the 240sx forum, there's an faq about putting the rb into the 240.
that's going to get you some answers...

[tyndago]

Originally posted by flylwsi
do you know what 2.0 bar is?

oh oh oh.... pick me - I know the answer.... 14.5 is one bar so x2 is 29 psi....

Originally posted by flylwsi do you know who tyndago is?[/b]

Thats - ty(phoon) (i)n dago (san diego) just in case you were ever wondering where I came up with that...

Originally posted by flylwsi do you know who shawn morris is?[/b]

Actually its SEAN Morris - my name gets misspelled a lot - but its close... still sounds the same....

Originally posted by flylwsi he used to work at motorex and legalize skylines.[/b]

I worked on Skylines for about 3 years now....

Originally posted by flylwsi ou've been drag racing for a few years, so that obviously means you know all there is to know about skylines...[/b]

I've been drag racing since 1993 - when I got my Typhoon. Since I was 19 years old. So thats 10 years.

Originally posted by flylwsi so you feel the need to look stupid talking down one of the few guys in the country that has had his hands on 1, not to mention the fastest ones in the US?. [/b]

Yeah Evo guy does not look the smartest in my eyes... I was testing his knowledge and he got an "F".....

[flylwsi]

did you bring an apple too, to help get to the head of the class????

i was going to say that 2.0 bar is approx 28 psi, and if an r34 can handle that stock, i'm reallllllly impressed...

i knew all the answers of course, b/c i've done my homework...

i'm almost to the point where i need to get a pocket protector... sooo nerdy.

thanks sean...

i wasn't sure on the spelling, b/c i've seen it both ways, and i'm sure it was right in your sig a while back, but it wasn't in SCC.

whatever...