Jump to content
SAU Community

Recommended Posts

the way i worked it out was its probably revving to about 7000, maybe a bit less like most ppl do...

the graph doesnt show RPM but it does show rod speed.. so if 180kmh is close to 7000, 90kmh is close to 3500.

its a few rpm off but close enough, boost is definitely well and truly on before 4000. a good achievement.

no way 3500 is 90km :no:

Anyway out of curiosity and boredom I just laid my dyno sheet next to battery's..

Im sure many of you have done this already.. but im posting it.. :D

Not alot in it really, they are running almost identical boost , I have a fair bit more midrange torque and an extra 20kws at 5k, but nose over after 6k where they are both pulling 300kws,

Then he keeps pulling past 7 and smashes me..

Just remembering though I have alot less mods under the bonnet <<read excuse for losing... :Pbatterydynosheet.jpgtune300.jpg

Im not gunna bother comparing anything to Simons freak of nature....

well know how many revs it is if we know where the run ends.. speed and RPM are always relative. you will do double the speed at double the revs in the same gear etc.

nice comparo too :) i cant wait to pop a 20G on my SR

Aaww don't be sad Simon you know your my hero.

Its more the fact I can't be bothered converting all your dynosheet figures to something legible. :laugh:

I think u were making the same as me at 5Ooorpm

On low boost mine is about the same as yours at 5000rpm, high boost close to 30kw more

You guys need to screw more boost in... 2bar or bust :)

Edited by SimonR32

Yeah you can see my 20g making more on the green line but that was 21.5 psi which is 4psi more than the blue line and the gains were insignificant..As Roy said the little comp just can't push any harder ,its giving all she can give..especially on my setup..If I get a better manifold and plazmaman plenum and better cooler it could possibly push for a little more.. But looking at the comparison I would sooner just get a T67 than push this any further.

Not sure why battery didn't push more in..

Got a scanner Artz? I think I could use my broken ass Photoshop skills to overlay onto the same image..

Just re did all my cooler piping in 2.5"(was a mix of 2.25/2.5" before) and now i'm thinking maybe I should move to a bigger Throttle body, not sure if there is much point cause the stock one is still bigger than the 2.5" piping ??

Haha I was putting mine over a picture of yours on the computer, I was gunna trace it but gave up..its almost identical though with yours just dipping a Little between 4-6rpm

That's the same size as my cooler piping I guess there is hope for it yet :D

Got my T67 today and have a few questions.

It came with a 4" Anti surge compressor housing which i did not want i wanted a standard 4" Compressor housing. Will this matter that much?

What is the best way to block the water lines? The shorter of the 2 (Water return??) I was simply going to find a bolt wth the same pattern but shorter and bolt it in nice and tight with a coper washer.

Not sure what to do with the one that goes around the back of the block should i just cut it off shorter and fix a blocked off bit of hose on the other side? Or blank it off at the source, which im guessing is under the plenum?

Any help is appriciated keen to get her back together, tonight i have connected oil feed(One supplied with the turbo is a bit long) and return. Finished replacing exhaust manifold studds.

Also I have one of those NZ manifolds and i am not happy with the way the wastegate pipe comes out it is really really close to the body and air con lines.

Should i modify this pipe or just blank it off and run the gate off the turbin housing?

Also I have one of those NZ manifolds and i am not happy with the way the wastegate pipe comes out it is really really close to the body and air con lines.

Should i modify this pipe or just blank it off and run the gate off the turbin housing?

is this one of the mild steel ones from ebay? i was pretty keen to get one of these for my rb20 anymore negatives?

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

    • Hope you aren't too sore after that one, might take a day or 2 to notice yet and I guess it is a loooooong drive home. On the bright side, tube frame front end is a thing at superlap, right?
    • https://www.facebook.com/share/p/18rmVb1SKB/ 
    • The chart of front pressure to rear pressure (with one being on the x axis and the other being on the y axis) is not a straight line on a typical proportioning valve. At lower pressures there is a straight line with one slope, and at higher pressures that changes to a lower slope. That creates a bend in the line at that pressure, called the knee point. If you do not change the proportionng as the pressure gets higher, you will suffer excessive pressure (at one end of the car or the other, depending on which way you look at the proportioning action) and then get lockups at that end. The HFM BM57, from my memory of previous discussions, is based on the BM57 from a different car (to a Skyline), with a different requirement for the location of the knee point and the distribution of pressure front to rear, and so is not a good choice for an upgrade on a Skyline. Here's a couple of links to some old posts, one from here, one from elsewhere. A lot of it pertains to adjustable prop valves, but the idea is the same. There are plenty of discussions on here about this issue from al the many years of people wanting a cheap/accessible option. https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/ https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/  
    • Yeah dunno why johhny posted that here with no context, just post on FB/insta bro where he put it up?  Laine had an off at T4 during Thurs prac, he's ok, car is less than perfect, they are done for the weekend, he can fill in the rest. Bando also binned it like 100m up the road.   
    • I feel there must have been a FB/insta post and the weekend did not start well at all I hope everyone is all okay
×
×
  • Create New...