Engine Upgrade

[Goon43]

Hey guys,

Fairly new to the whole skylines Australia scene, i've been to one of the meet up but thats about it. The reason that i'm creating this thread is because i'm seriously considering some big upgrades for my R33 GTS-T. I've had the car for about 6 months now, it being off the road for about 2 of those because some pricks stole it. However i have it back now, and im wanting to get more power out of her. She's pushing about 210kw at the moment according to the previous owner and the guys at trojan. However i don't have any documentation of that. I'm wanting to make the car a very drivable reliable street car, that can be taken to the track/skidpan every now and then for abit of fun. I'm wanting to have the car to be able to spool quickly for early boost, and also some more low end power. I am aiming to make around 260kw. The way i am planning on doing this is by upgrading the following things

Injectors - Nismo 555cc or 600cc?

Fuel Pump - Nismo

AFM - z32

CAMS - HKS

and a HKS GT-RS Turbo

I'm wanting to try spend as little as possible for the parts. So i am creating this thread to get any feedback about where people think would be best to buy these parts, or if there are other parts that would be better suited. The mods that are on the car at the moment are: Hybrid FMIC, POD (with heat sheild), Mines ECU (unsure on model as i've not checked), Aluminium radiator, Full turbo back exhaust - 3inch piping - with a 4inch tip. And according to the guy i bought it off, it has full forged internals, and a bigger head gasket. Now the guys at trojan think it has a bigger head gasket as all the cylinders are running perfect 140psi on every cylinder, and could not see the standard writing that are on the standard pistons as well.

So if i could get as much feedback as possible on recommendations for places to buy from, or if other parts would work better. Would be much appretiated.

[RB ONEVIA]

only if you had an RB20, id have everything you need......

[Gus-]

only if you had an RB20, id have everything you need......

such as....?? i have a rb20...

i would have a chat to our local flower man michael...or even jsut have a look at how he got power out of his 25. there are a few pretty simple formulas but i reckon its always best to look at peoples results and see what you like...you will also get an idea about hiccups that may occur on the way for example drivetrain problems due to power...etc etc etc. have a look in the forced induction section...there is a topic label'd dyno results for rb25 (there should be haha). read through those many pages and you will see jsut how many different combos you can go for.

and by the way...i would suggest making a budget your willing to spend (money i mean) and then go for a power out put to suit...not "as little as possible"

and i would buy parts through just jap or slide performance myself...my recomendedness

[Goon43]

Yeah, when i meant as little as possible. I mean getting those parts for as cheap as i can find. instead of buying it from a place that sells the turbo for like $4,000 alone where as another sells it for $2,800 say. I was thinking of setting my budget at $6,000. However i would be willing to spend a little bit more to make sure i do it right the first time.

Thanks for the help so far anyway. Keep them coming =)

[TiTAN]

nismo 555cc injectors or 740cc, the 600's are for the gtr and will need a new fuel rail and resistor pack.

[Helious]

Also do not leave out giving Bullet32 a visit. If you have the power you will need to put it to the ground somehow. You might also consider suspension unless the car already has it. Although it wont increase the power, it will help keep the front pointing forwards.

Check with your ECU to see if it is mapable and whether it is still using the standard boost solinoid. If you are going up to a higher boost rating, you may need a boost controler.

[R32_Matt]

Is the mines computer programmable or just a modified ecu from japan?

You will want a progammable ecu for future mods

[Bullet32]

For all of those parts:

www.negun.com

www.justjap.com

or if you want to buy locally, Angelo at Trojan will be able to source and have all those parts fitted and tuned.

[CeJay]

My Car is putting out similar power, it's an rb25

Is running, a VIPEC ecu

555 injectors,

and pretty much all the other stuff on your list, maybe forged as well idk.

As well as some other stuff.

Comes on boost at a nice point too.

I am running a hks 2835 pro s though. 250-260ishkw at 15psi. depending what dyno it is on.

I'd probably go for an aftermarket ecu though.

welcome to have a look at it as well.

[Goon43]

Also do not leave out giving Bullet32 a visit. If you have the power you will need to put it to the ground somehow. You might also consider suspension unless the car already has it. Although it wont increase the power, it will help keep the front pointing forwards.

Check with your ECU to see if it is mapable and whether it is still using the standard boost solinoid. If you are going up to a higher boost rating, you may need a boost controler.

Hey Helious. The car has after market beilstein suspension. It's got 17" volk TE37's, and is running bridestone RE070 tires as well. at the moment it seems to make extremely good traction. Even in the wet, it doesn't slip much even when giving it abit.

Is the mines computer programmable or just a modified ecu from japan?

You will want a progammable ecu for future mods

Im unsure if the mines ECU is programmable, from what i've read. Mines ECU's can only be tuned by Mines, however i might speak to the boys at trojan, as they have seen the ECU themselves when they were fixing it up, and seem to know alittle bit about them, so ill ask them when i see them in a few days.

If its the case that it isn't programmable though, i was thinking a powerFC. However they are fairly expensive these days.

For all of those parts:

www.negun.com

www.justjap.com

or if you want to buy locally, Angelo at Trojan will be able to source and have all those parts fitted and tuned.

Yeah, i've had a look at both of those bullet, i've sided more with nengun as their prices are FAAAR cheaper than justjap. The HKS GT-RS is $4,999 on justjap, where as its roughly $3,200 delivered from nengun.

I think i might side more with the 555cc injectors, as they will allow plenty of power upto 300kw.

[Goon43]

My Car is putting out similar power, it's an rb25

Is running, a VIPEC ecu

555 injectors,

and pretty much all the other stuff on your list, maybe forged as well idk.

As well as some other stuff.

Comes on boost at a nice point too.

I am running a hks 2835 pro s though. 250-260ishkw at 15psi. depending what dyno it is on.

I'd probably go for an aftermarket ecu though.

welcome to have a look at it as well.

Ahh cool. So your car has cams as well?

Thats another thing im curious about. What size cams should i get, i've heard mixed results about the size of the cams. Some are good for high RPM power, and some are better for low end. Im wanting more low end power as the turbo is more meant for the high end in my opinion.

How much did you pay for the 2835 pro s?

I might take you up on that offer as well =). You going to skid pan this weekend by any chance?

[CeJay]

Pretty sure It has tomei cams in it, not sure which type, bought it like that. Bought my turbo used, but saved 1k on retail. I am going to a skidpan day next month, but not this weekend, still have some small things to fix on the car.

come out one friday night and have a chat to some other owners too.

[stav]

Yeah, i've had a look at both of those bullet, i've sided more with nengun as their prices are FAAAR cheaper than justjap. The HKS GT-RS is $4,999 on justjap, where as its roughly $3,200 delivered from nengun.

+ Australian Taxes