Jump to content
SAU Community

Recommended Posts

10 hours ago, Piggaz said:

-5’s are too BIG for a 2.6. My god they’re a heap of shit to drive on a 2.6. Again, have you driven that setup? You’d be pumped to the moon and back by a euro hatchback.

I wouldn’t piss on those new journal bearing shitheaps from HKS. Waste of time.

You may be only looking at where they “fall off”... but how they drive and how the come on is chalk and cheese.

The GTR is a big, heavy heap of shit with tall gearing with the 5 speed and can’t be helped by any “smarts” in the engine bay (like VCT). It’s a small stroke, low comp donk with a dumb head. It needs all the help it can get to push around that pork!

It’s ok, I own one, have had for 15 years. But to own one with a 2.6 is a no go for the above reasons.

hahaha i really need to drive a single turbo 2.6 to see what its like.   I have a 400kw R32 with -5's and although i know they are laggy i dont find it a pig.  I suppose you dont know what you dont know right :P 

 

11 hours ago, Piggaz said:

-5’s are too BIG for a 2.6. My god they’re a heap of shit to drive on a 2.6. Again, have you driven that setup? You’d be pumped to the moon and back by a euro hatchback.

I wouldn’t piss on those new journal bearing shitheaps from HKS. Waste of time.

You may be only looking at where they “fall off”... but how they drive and how the come on is chalk and cheese.

The GTR is a big, heavy heap of shit with tall gearing with the 5 speed and can’t be helped by any “smarts” in the engine bay (like VCT). It’s a small stroke, low comp donk with a dumb head. It needs all the help it can get to push around that pork!

It’s ok, I own one, have had for 15 years. But to own one with a 2.6 is a no go for the above reasons.

I flipped it backwards, -5s are too big, correct. But GT3-SS turbos are tiny, 0.54 a/r exhaust turbine which is tighter than any other turbo out there. They nose over hard on 2.6, so the concern is that a 2.8 will just shift everything down a few hundred RPM and make the engine feel like a Mazda 2.5T where the power falls off a cliff well before redline.

The HKS turbos may be a waste of time/money but it's already too late, the turbos are bought for and installed so I'm just going to see how they go. The engine isn't at the point where the bottom end is going to be taken apart yet so it's going to just be a 2.6 for now. I have a VCAM step 1 sitting in the garage so that can be a first attempt to try and get the VE up earlier to spool the turbos. If that doesn't get the desired powerband then I'll think about a stroker or RB26/30.

I'll post dyno charts and data logs as I work through this, if it sucks you guys can have some fun pointing and laughing.

2 hours ago, Stixbnr32 said:

hahaha i really need to drive a single turbo 2.6 to see what its like.   I have a 400kw R32 with -5's and although i know they are laggy i dont find it a pig.  I suppose you dont know what you dont know right :P 

 

You going to gtr fest on the weekend?

I must say my car back when it ran was a laggy bucket of shit on the -5's but at the same time goddam it was fun once the boost kicks in!!

This is a weird statement to a degree but the better a turbo setup is, the worse it feels!!  What I mean by that is a smooth power curve from low down in the rev range doesn't have anywhere near the wow factor of a laggy turbo when it hits it's happy zone.  The better sorted car will be a waaaaaay better and quicker car (until high in the rev range anyway) to drive but it just doesn't have that raw "Holy f#$k hang on boys she's off" kind of feeling!  I drive a lot of the modern turbo cars that would be way faster than my car but they're boring AF compared to a laggy turbo coming on song!

54 minutes ago, Shoota_77 said:

This is a weird statement to a degree but the better a turbo setup is, the worse it feels!! 

Traction is the other thing though. When you have a knife edge boost response at higher rpm, the sudden transition to torque and power is more prone to make the tyres break. It is so much better to be applying torque to the road at lower rpm and gaining speed, Makes them tend to stay stuck to the road for longer. Not to mention it is more modulatable.

My thoughts are this, and I’m still torn here. But 

you wouldn’t get a Hakosuka GTR and pull the engine out (it has been described as the laggiest NA motor ever produced) and drop an SR20 into it, then say, it drives much better. 
this would probably be true, but you’d be missing the point. 
Now, I’m not saying our cars are at that same level, but I believe they are going in that direction. So I’d like to try to get my car when I want it, while it is still somewhat affordable (should have done it a couple of years ago) lol 

At this point, I’m even considering putting a getrag in it, over a sequential. 
but we’ll see where things go. 
As Piggaz said, they are a big heavy bucket of shit! 
but isn’t that why we love them, Clarkson said, it’s the flaws and imperfections in a car that we bond to. If it was perfect, it would be boring. 

Performance wise, bigger is always better. More torque, easier power.

But I was told by my engine builders that the 30 blocks are not as good for circuit work. Something to do with the harmonics I think? Anyone heard similar?

Therefore I built a 2.6 and didn't go stroker mostly due to cost, as I wanted to keep it simple and reliable as possible on the track. Probably should have gone a 2.8, but I wouldn't have been able to help myself, and I would have gone bigger turbo, sequential etc etc

13 minutes ago, Darmanin10 said:

30 blocks are not as good for circuit work. Something to do with the harmonics I think? Anyone heard similar?

It's not really the block, at least wrt the harmonic issue. The 30 block is certainly not as good as the 26 (typically, on average, there are always examples at each end of the bell curve) simply because it is taller. The squatter shape of the 26 block makes it stronger in a few places where it counts.

The harminic issue is in the crank. This can be minimised with a billet crank and upgraded balancer, as well as careful tolerancing etc etc. Every last detail helps kinda thing.

25 minutes ago, Piggaz said:

Isnt your car pushing water with a busted head gasket?

Just top it up and off you go again, has a VW or Audi feel to it. Every time you fill up your fuel, top up your oil & water 🤣

  • Haha 3
3 hours ago, Piggaz said:

Isnt your car pushing water with a busted head gasket?

Yep

 

3 hours ago, Dose Pipe Sutututu said:

Just top it up and off you go again, has a VW or Audi feel to it. Every time you fill up your fuel, top up your oil & water 🤣

Just been doing this, taking it to gtr fest on the weekend and then parts I’m replacing start coming off 

  • Like 3
6 hours ago, r32-25t said:

Yep

 

Just been doing this, taking it to gtr fest on the weekend and then parts I’m replacing start coming off 

See ya there mate 

 

also recently tossing up going 3L

we went 2.8 high comp shit load of head work and couldn’t be happier 

 

  • Like 3

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 would just put EBC back on the "I would not use their stuff" pile and move on.
    • Can I suggest you try EBC directly again and link them to as many competitor catalogues as you can to show their listing is incorrect, eg https://dba.com.au/product/front-4000-series-hd-brake-rotor-dba42304/ If you have access to an R33 GTST VIN and your VIN, you could also use a Nissan Parts lookup like Amayama to show them the part number is different between 33 GTST and 34 GTT which may get their attention
    • So i got reply from EBC and they just this site where you can clearly see those 296mm fronts on R34 GTT. I send them photos and "quotes" that 296mm are not for 34 GTT and they are too small. But it will be very hard to return them cuz nobody here knows 100% and they just copy those EBC catalogue :-D https://ebcbrakesdirect.com/automotive/nissan/skyline-r34
    • Hi, is the HKS  Tower Bar still available ? negotiable ? 🤔
    • From there, it is really just test and assemble. Plug the adapter cables from the unit into the back of the screen, then the other side to the car harness. Don't forget all the other plugs too! Run the cables behind the unit and screw it back into place (4 screws) and you should now have 3 cables to run from the top screen to the android unit. I ran them along the DS of the other AV units in the gap between their backets and the console, and used some corrugated tubing on the sharp edges of the bracket so the wires were safe. Plug the centre console and lower screen in temporarily and turn the car to ACC, the AV should fire up as normal. Hold the back button for 3 sec and Android should appear on the top screen. You need to set the input to Aux for audio (more on that later). I put the unit under the AC duct in the centre console, with the wifi antenna on top of the AC duct near the shifter, the bluetooth antenna on the AC duct under the centre console The GPS unit on top of the DS to AC duct; they all seem to work OK there are are out of the way. Neat cable routing is a pain. For the drive recorder I mounted it near the rear view mirror and run the cable in the headlining, across the a pillar and then down the inside of the a pillar seal to the DS lower dash. From there it goes across and to one USB input for the unit. The second USB input is attached to the ECUtec OBD dongle and the 3rd goes to the USB bulkhead connected I added in the centre console. This is how the centre console looks "tidied" up Note I didn't install the provided speaker, didn't use the 2.5mm IPod in line or the piggyback loom for the Ipod or change any DIP switches; they seem to only be required if you need to use the Ipod input rather than the AUX input. That's it, install done, I'll follow up with a separate post on how the unit works, but in summary it retains all factory functions and inputs (so I still use my phone to the car for calls), reverse still works like factory etc.
×
×
  • Create New...