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Got Over 400kw Atw?

T04GTR

By T04GTR,
in Engines & Forced Induction

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Piggaz Grand Master

Piggaz

Posted
Posted

-10s are cheap and for the 3ltr the ultimate low combination for the street. Ppl that have built rb26/30s know this :)

I disagree man. -5's are cheaper, come on SO MUCH EARLIER and still make well over 400. Peaky, laggy (not saying your's was laggy) but imagine coming on ATLEAST 1000 RPM earlier and making 430+. Average power > peaky power.

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colinhunt
colinhunt

Let's not turn yet another thread into a discussion about your car, please.

Lithium
Lithium
SiR_RB
SiR_RB

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N1GTR Grand Master

N1GTR

Posted
Posted

I'm not posting my last graphs as they're not finished tunes, but I will say this; they come on earlier than Paul's do and don't drop off in the top end with my cams. I'll never own a set of GTRS's again or the garrett version either.

I don't understand why this stupid argument keeps coming up? Surely we put it to bed already?

dato$2nv Rising Star

dato$2nv

Posted
Posted

a guy who got his ar buit at same place as mine has rb26/30 with twin hks 2530's (pretty much -5's) on pump 98 making 450kw (shafts pulled so rear wheel )on mainline dyno on 25psi and over 1000nm , would be pretty damn responsive too!! but big money invested ,, pretty sure hes running a dog box and all the goodies

GTR_JOEY Grand Master

GTR_JOEY

Posted
Posted

a guy who got his ar buit at same place as mine has rb26/30 with twin hks 2530's (pretty much -5's) on pump 98 making 450kw (shafts pulled so rear wheel )on mainline dyno on 25psi and over 1000nm , would be pretty damn responsive too!!

what RPM is he making 25psi at?

450 is a big figure on 98!!!!

Piggaz Grand Master

Piggaz

Posted
Posted

Paul, what do you think you would have made peak power with e85 and gtrs's?

-5s on my rb26 came on nice with mid range, on a 3ltr it would have been like a big block!

Marko, I have no idea. -5's on a 2.6 are still a bit 'meh' for my liking. Much better off with -9's/SS's. Having gone from RS's to -'s on a 2.8 it's the best thing I HAVE EVER DONE. I still feel like it lacks a tad low down grunt but the silly cams don't help. Put them on a 3.0 and OMFG. I have seen the graph (although not at full noise) and there is no comparison. NONE! If i build a 3.0 (and I may very soon) I can assure you I wouldn't put those things on the passenger side of the engine.

A perfect example is this. Last week out of UE there was a supra with a T04Z. Made something like 315 RWKW. Poor result yeah? Pitty he still had a standard cat and some crappy cat back. Any turbo setup needs the supporting mods to work. How many crap results do you see from -5's/2530's? HEAPS! Sort the setup out and I can Assure you.. i'll bet my car on it, that the setup on the street would be ruthless. 3.0, 2.9, 2.8.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Sorry MarkO I've got that engine, and have had those turbos, and there is no way I'd be calling them "ultimate".

I believe Ian - GTRNUR would agree with you also.

And funnily enough, for his new motor - he is putting on -5s as well.

How about that :merli:

Marko R1 Grand Master

Marko R1

Posted
Posted

I do agree with u paul :)

It also comes down to personal taste when we talk about 2.6 as I've had gtss's which I found boring...the -5s however were nice.

As u say its about having the right combo. I could pick up my turbo setup with larger cams but I think u can't go wrong with -5s, regardless of capacity.

Marko R1 Grand Master

Marko R1

Posted
Posted

Haha show me your results when its done and let's compare the 2 on 98.

There is no denying in bottom end from -5s...I'd like to see if there is a difference up top.

I'm certain I will switch mine to -5s on my ADM gtr quite soon, home Reno's are taking up all of my bandwidth + a second child on the way. How priorities change with age.

Piggaz Grand Master

Piggaz

Posted
Posted

on a 3ltr it would have been like a big block!

I can't see how that's a bad thing? Twist EVERYWHERE. Who needs to go back a gear, just let the grunt pull you out. It won't 'feel' as fast, but you would be so much further down the road he won't catch you with his extra '20 kw'. My 5's don't feel as as 'fast' as the RS's but its so much easier to drive quickly with this setup. The fact that in places I am making 100 more says enough... and more top end. I can't see a downside?

TiTAN Grand Master

TiTAN

Posted
Posted

-10s are cheap and for the 3ltr the ultimate low combination for the street. Ppl that have built rb26/30s know this :)

Although, even better than this would be a t51r if u want to lift the bar.

-5 beats -10 hands down, slightly less up top (marginal) but has massive increases down low.

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