Jump to content
SAU Community

Recommended Posts

Very impressive. How far away from a dragway? Interested to see the results!

The surge tank makes for a very tidy installation compared to others with multiple pumps. Any idea of the fuel capacity of the tank?

Two 38mm wastegates flow more than a 50mm and less than a 60mm - what is the reasoning for having two rather than one with a single turbo?

And what size and type of bov(s)?

Only about 20 min from the drag strip mate, should hopefully get down there before the end of the year, hopefully make a 10sec pass :D

Capacity of the surge tank it 5L from memory

Like Paul said, running the twin gates cause I wanted to keep it a true twin scroll set up

BOVs are just the standard ones but vented to atmosphere

Nice result joey. This gives me hope the 88/75 with full race mani on the 30 will be worth the wait.

Interesting to see how this goes.

More specific details of the setup?

How did you guys get the boost to come in so much earlier on the orange line?

Looks like by turning up the boost from 20 to 25psi

and I quote:

"The only difference in the two lines in the graph is that there was more boost added to the mid range for when i wanna bump up the power for the drag strip"

I think, and this is my explanation until I actually ask the tuner, because the boost was higher in the second line through the mid range.. The boost controller held the gates shut tighter not allowing any leakage.

there was no changes besides the extra boost through the mid range

BOVs are just the standard ones but vented to atmosphere

Correct me if I'm wrong, but assuming the 32GT-R BOVs are the same as a 33GT-R they're gonna be sitting slightly open when in vacuum and as a result be sucking in (a very small amount) of unfiltered air.

Not sure how concerned you are about that, but it's the reason I stopped using my stock 33GT-R BOV and switched to a proper atmo.

Haven't even really thought about it mate, to be honest I'm not overly concerned, I don't think there is anything to be too concerned about :/

I would rather keep the standard BOVs

Haha vids this weekend :)

That's pretty much the limit of that turbo, we put more boost into it but it just want making any more power.

So we backed the boost off up top and beefed up the mid range..

Yavuz wants to put a precision on it lol

I just need to install a second 044 pump in mine and run the lines and mine will be ready for a tune with the 6262, if you hold off until then might give you an idea if you want to swap and if you do go the same or bigger

Ah excellent, are you still running a 2.6? what work have you got done to your head?

once the Tune was done we ended up taking the BW off and bolting in a 6466, didnt quite line up at the dump pipe though, other wise i dare say id be running around with Pauls turbo right now haha

Yavuz reckons response would be the same if not better and it wouldnt choke so much up top

Well after seeing the power it made on pump on low boost (around 375rwkw) i would have thought it would have made more power...

but by the time we played with the cam gears and got boost coming on nice and early we lost that little bit up top

at the end of the day the front fan is only 60mm and for it to make that power with that kind of response, i couldnt have asked for much more really :)

I just need to install a second 044 pump in mine and run the lines and mine will be ready for a tune with the 6262, if you hold off until then might give you an idea if you want to swap and if you do go the same or bigger

Ah excellent, are you still running a 2.6? what work have you got done to your head?

once the Tune was done we ended up taking the BW off and bolting in a 6264, didnt quite line up at the dump pipe though, other wise i dare say id be running around with Pauls turbo right now haha

Yavuz reckons response would be the same if not better and it wouldnt choke so much up top

Little surprised it didn't make more than that, though still very stout power. Keen to see video :-)

Well after seeing the power it made on pump on low boost (around 375rwkw) i would have thought it would have made more power...

but by the time we played with the cam gears and got boost coming on nice and early we lost that little bit up top

at the end of the day the front fan is only 60mm and for it to make that power with that kind of response, i couldnt have asked for much more really :)

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

    • I get that taking off the head is best but that's a bit much for "just" valve seals. I was just under the impression that one would be able to rotate to TDC and be able to temporarily drop the valve without losing it and effectively having to remove the head to then recover it. I never knew people actually pushed rope into the cylinder to do valve seals hahaha So just to confirm, just going to TDC will not work? In that case I know when I do valve seals I'll maybe just remove the head and do some other things while I'm there, or just wait until I do an engine build.
    • The old approach was to fill the cylinder/chamber with a length of rope pushed in through the sparkplug hole. The new approach is to connect compressed air to the sparkplug hole and fill it with enough pressure to push the valves up. Doing either of these things with the head on and the engine in the car is a lot less pleasant than doing it properly.
    • Can't you put the pistons to TDC and then do the valve seals? Or will the drop down too far to pull them back up?
    • One thing I can tell you is, do it properly the first time. If you encounter unexpected problems just let the car sit for a week or two if you have to get some other parts or figure stuff out.  I'd have said go and use as many OEM parts as possible but since you want to change the turbo later on a custom kit is probably the better choice. Since I have no experience with RB25 just compare parts diagrams and images before buying a line kit and it should be easy to see if it has everything you need. Amayama has very good parts diagrams and part number lists, that is what I used a bunch to figure out what I might need. And don't forget to plan ahead and possibly renew other stuff that's easy to get to while you're in there doing the turbo lines. Happy wrenching
    • Update 4:   Hi all, good news. Engine is running and all the gaskets and seals seem to be working as intended. No leaks so far, even the JB Weld seems to hold. I flushed out the old coolant a few times and put in fresh coolant, not Nissan stuff, I decided to try the Ravenol Protect FL22, they claim it works for a wide variety of JDM cars and the opinions on it by some people were pretty good. And it has the nice poison green color! And man am I glad I bought a coolant system tester earlier this year, vacuum filling works wonders on this engine. I can definitely recommend this to anyone still doing it the old school way. All you need is compressed air supply. Will have to do a small test drive as soon as I can, I removed the gauge cluster again as the tacho needle was still bouncing around a bit but it was much better than before already.  I also found some cracks on all 4 tires inner and outer sidewalls. Apparently these tires should 't be parked on for extended periods or be kept under 0 degrees during storage, which I did not know. Clearly the previous owner didn't look into those details either, he probably bought them just cause they are cool semi-slicks. I'm just wondering how tf I am supposed to reach 30-80 degree tire temperatures on the public road consistenly, these tires were never going to work for my use case. I'll probably order Continental SportContact7 ones as these are the best allround summer tire available right now and I don't think I'll need anything crazier for now. Do let me know if you have experience with various tires and which ones you recommend.
×
×
  • Create New...