Jump to content
SAU Community

Recommended Posts

red = bp ultimate (98 RON)

blue = powerplus e85 (106 RON)

Nice. Hits 17psi at the same kind of rpm as Bri73y's HTA GT3076R did on E85 on his run in tune ;)

gallery_36777_3194_29295.jpg

will it do a 10 second 1/4 mile?

Maybe we should try and peer pressure Bri73y into doing a 1/4 mile run when he has his full tune done on his car and see how it goes. I never claimed a car with one would be a 10 second car, but I reckon with the right setup it would be possible.

also depends where you get your freddy but there are some reputable sellers and then there is the other guys...

I sold mine to battery who bolted it straight on and hasn't had an issue, so don't belive the hype ;)

Haha ouch! I handed it to Plazmaman thankyou very much :laugh:

3200? :0

Edit - argh its been ages since I looked at it, I thought it was 17psi by around 3400rpm, my bad.

Looking at it, it looks like you both reach 13psi by around 3300rpm on E85 (comparing fuel for fuel). After that point it is hard to compare, partly due to dyno scale and partly as his looks like it has a lazier boost control setup which is totally unrelated to the turbo itself so after that point the boost climb tapers off. If the boost kept climbing like it was, it looks like it is on a similar kind of mission - the GT2835 might have a tiny little edge over it, but comparing with a turbo which is flow wise a much better match to the engine and capable of 100+whp more I think it's a pretty respectable thing.

I never said it was exactly the same, when you are talking 100rpm or so it is hardly going to be worlds apart - and that is more the point I was trying to make.

Fair point... Although with more tuning we did get the e85 boost up to pretty much where the pulp was :)

Also looks like the boost isn't properly sorted on that run in tune so there might be more in it response wise?

Fair point... Although with more tuning we did get the e85 boost up to pretty much where the pulp was :)

Also looks like the boost isn't properly sorted on that run in tune so there might be more in it response wise?

When i first saw it i was surprised! Will be good too see how the car turns out! Interesting that is for sure!

You get what you pay for ;)

Geez!

I DID buy from a reputable sponsor of this forum! Only through research and quite a bit of homework did i learn of this need.

... try provide some friendly advice ....

Haha don't take it to heart bro everyone has a crack at everyone on here lol. No big deal. Plazmaman is the way to go anyway. And after looking at my receipt my plazmaman throttle is 66mm the smallest. If someone ever buys my 2535 HKS I'll be putting on roys greddy t67 or a FP 3076.

Edited by Joshbigt62r

Obviously because I own one haha kidding.

Realistically there's F all difference between them. Just what looks you prefer I guess. People say the longer factory runners are better but a mate of mine sold his plazmaman and went Freddy for basically zilch difference. I'll see if he can russle up the dyno sheets for me to put up He doesn't go on here anymore.

Edited by Joshbigt62r

Fair point... Although with more tuning we did get the e85 boost up to pretty much where the pulp was :)

Also looks like the boost isn't properly sorted on that run in tune so there might be more in it response wise?

Ah ok, nice :) I had considered getting one of those at one point as they seemed like they'd be really nice but for me they seemed just slightly on the smaller side for my liking - but still really good. Much prefer the idea of them to GT-RS!

The overall tune in that plot is just a run in tune so I'd not take it as anything more than a loose indication of where things were going to be heading - I really reckon those things + RB25DETs would be a match made in heaven. At least by my tastes :)

i think Staos pushed over 400 through his....

At 431rwkws on stock inlet manifold held it fine, I don't think it has issues crunch 460rwkws either, not sure at exactly what power level larger inlet manifold and throttle body starts to take effects. The positive side of those forward facing plenums would be the ability to adapt on shorter cooler pippings instead of having them looping around the rocker cover.

The boost behavior seems to be common to the x28x type of turbine wheels even with customized larger turbine exducer trim. it really needs to have taller inducers and larger dia to be efficient enough for the RB25det motor.

Ah ok, nice :) I had considered getting one of those at one point as they seemed like they'd be really nice but for me they seemed just slightly on the smaller side for my liking - but still really good. Much prefer the idea of them to GT-RS!

The overall tune in that plot is just a run in tune so I'd not take it as anything more than a loose indication of where things were going to be heading - I really reckon those things + RB25DETs would be a match made in heaven. At least by my tastes :)

if it can match the 2835 for response, or even come within 500 rpm it will be an amazing bit of kit

The boost behavior seems to be common to the x28x type of turbine wheels even with customized larger turbine exducer trim. it really needs to have taller inducers and larger dia to be efficient enough for the RB25det motor.

if you are referring to the HKS turbo, dont forget it's a modified 30xx not a 28xx and HKS just didn't update their names with garrett

if it can match the 2835 for response, or even come within 500 rpm it will be an amazing bit of kit

In terms of spool on the dyno it was never going to match exactly, even with the boost curve nailed - but within 500rpm, more likely. In terms of transient response it may be closer again, but having a full size GT30 turbine and larger a/r will always keep it a little less snappy at lower rpm. Once on the boil it'll be gravy :)

The overall performance will be interesting, however!

my thoughts exactly...

transient response is the most important thing in my opinion (hence me sticking with stock cams), but that thing will definitely be a killer up top, and fairly easy to keep there on larger tracks....

might fail a little in the really twisty stuff though

I'd say it'd be killer mid-range and up-top, really low down (ie, sub 3500rpm) will be where it'll be giving anything away to GT28 and trimmed GT30 turbines and the difference is not going to be in fail levels, by any stretch of the imagination.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Actually, that's not entirely true. It's also the same motor in the 1st gen Nissan Cube but they're rare as hen's teeth.  
    • Yeah it is always worth testing and balancing actuators out of the box, just set the pressure regulator on a compressor very low (eg 5 psi) and increase it slowly to see when they both move.....unfortunately while you may be able to adjust the length of the actuator rod to minimise any difference, the actual pressure they move from is not adjustable so you need a well matched pair. And yes, the VCAM is probably contributing; the earlier in the rev range they come on boost and the slower the revs build (I think your demo was in 5th), the more you notice it.  Driving at WOT through 1st, 2nd, 3rd etc you will probably never hear it as any shuffling starts and is over super quickly
    • oh they were with that motor, you need to remove the engine to change the spark plugs (don't have to, but it does make it easier)
    • I certainly fall into the annoyed camp, but glad to hear that if it's happening at low boost then I'm not likely going to blow a turbo and end up with metal shards in my oil. Just feels like it prevents me from really driving it without hesitation and "peak" performance. Wonder if it's the VCAM, it did an impressive job of shifting the torque curve and faster spool, but maybe now it's "too fast" and there's too much air for how open the throttle is.  Based on some other threads, will also do some reading on synchronizing the actuators. They are the default actuators that come on the Garrett's and I would think they would be set the same coming from the factory, but if the turbos don't actually work exactly the same way at the same time as previously mentioned, it would be worth making sure the actuators are actuating together properly
    • I went down this rabbit hole before, ended up sourcing a motor from the UK (I'm in Japan) which also didn't function correctly. With the original motor, I disassembled it and reassembled it and it works somewhat, sometimes. What I could deduce from all my screwing around is that there is calibration of the gears on the inside of the motor and two ramps on the main gear which activate switches that operate the motor and move the sunroof either to retract into the roof or tilt. Where I got stuck was that, it seemed in my case that one or both of the switches that are activated by the ramp on the gear did not always activate and thus the motor did not move, causing it to sometimes not retract or tilt (apologies, I've forgotten which way it didn't work.).  Of course this part is discontinued at Nissan now, it's the same part in the S15 but no other models. I also contacted the manufacturer of the component for schematics - forgot the name, they're based in Gifu - but they declined to share the information due to being bound by an NDA, sadly. Looking through my pictures now, it seems I last had a crack at this in 2022. See, I so kindly wrote "open" and "close" next to the switches. If you figure it out, please do tell me. Those little switches, with the red buttons may need to be replaced.
×
×
  • Create New...