Jump to content
SAU Community

Recommended Posts

Cutting holes is pretty stupid considering it's an instant defect in most states. There are a few ways to get the piping through without hacking holes.

Most of the 33/34 setups I do have return flow coolers, with stock piping in the engine bay. None have been held back much, infact a few have impressed me with their results. If you are trying for dyno queen status it may help a few KW, but otherwise more boost will force more airflow through.

I had similar conversations with the Evo crowd, Plasmaman popped up a few times, but I managed my 300awkw goal on the factory airbox and cooler for a full stealth look, without wasting coin on parts I didn't need. It may make 10 or 20kw more with an expensive cooler kit, but that isn't value for money to me. I guess it depends who you are trying to impress with your mods...

  • Like 2

Cutting holes is pretty stupid considering it's an instant defect in most states. There are a few ways to get the piping through without hacking holes.

Most of the 33/34 setups I do have return flow coolers, with stock piping in the engine bay. None have been held back much, infact a few have impressed me with their results. If you are trying for dyno queen status it may help a few KW, but otherwise more boost will force more airflow through.

I had similar conversations with the Evo crowd, Plasmaman popped up a few times, but I managed my 300awkw goal on the factory airbox and cooler for a full stealth look, without wasting coin on parts I didn't need. It may make 10 or 20kw more with an expensive cooler kit, but that isn't value for money to me. I guess it depends who you are trying to impress with your mods...

This is why I'm so conflicted, Stao said my struggle to get anymore than 18psi or sustain that (TBH it struggles to even make that) is because of pressure drop in the cooler.... I'm not sure what the actual issue is now. With that being said the tuner said the waste gate actuator isn't very good either. Open to opinion, PM me if you can help/provide insight

I've seen the turbo make towards 30PSI IIRC but I'm struggling to hold 18PSI, Stao stated that the issue is the intercooler pressure drop but I've got a mate with a 3076 and he is happily running 20PSI on the same cooler. Maybe some characteristic difference being different turbos but I would have thought they should both see the same pressure loss.

Tuner said the actuator is a contributing factor, he struggled to get it to hold 18PSI even using my boost controller.

I'm not sure what the actual issue is now.

There is no difficulty in finding out. You just have to go to the effort of installing some pressure tappings and run enough boost gauges during a run to find out where the pressure drops are.

This is why I'm so conflicted, Stao said my struggle to get anymore than 18psi or sustain that (TBH it struggles to even make that) is because of pressure drop in the cooler.... I'm not sure what the actual issue is now. With that being said the tuner said the waste gate actuator isn't very good either. Open to opinion, PM me if you can help/provide insight

I'm running a 2013 Hypergear ATR43S22 and a Trust turnflow (vertical flow) intercooler, 275rwkw @ 20psi on PULP controlled by a Blitz D-SBC.

I have about 4mm preload on the actuator arm from memory, set by the master himself (Stao).

Here's a photo of the Trust intercooler, the end tanks are top and bottom as opposed to the sides as in most return flow coolers.

It's still got a sharp 90 degree bend on the top side to clear the chassis rail, may cause some restriction:

13994336254_b0636c4c23.jpg

EDIT: More photos of the installation here: http://www.sau.com.au/forums/topic/348655-r34-gtt-front-mount-intercooler-installation/?p=7265769

Edited by V28VX37
  • 7 months later...

Maybe flogging a dead horse here, but is this Trust return flow intercooler look any better than the Blitz type, havn't read or seen this exact one on here.

 

20160802_152645.thumb.jpg20160802_152543.thumb.jpg

Looks very similar to my blitz return flow. 
I guess the way the end tank makes the 90 degree bend is different.

Link might not work as it's from my FB but i'll chuck it in just incase.
https://scontent.xx.fbcdn.net/v/t1.0-9/12654460_10153445823391483_8868087888444606538_n.jpg?oh=7abb373099ab59cf6e03d7841d5249cc&oe=585CF425

From what I have heard is people seem to think it's just the core of the blitz that is shit.

I'll know in a few weeks if it's really that bad when mine goes in for a tune.

2 hours ago, Dose Pipe Sutututu said:

best to run an IAT after the FMIC and see if it's cooling effectively 

Sounds like a pain, at that point on the dyno it will be disappointing if not making neck braking torque etc... i have my FMIC from other skyline that proved easy results so maybe i'll just put that on and make the hole for it, just extra work to rule out shitty intercooler i guess...

  • 2 years later...
3 hours ago, Girts said:

Is anyone making 300kw and over on the Blitz return flow?

+1 - 320 odd on E85

Been tracking racing my R33 for 7+ years with that set up no problems.

Everyone has an opinion on these coolers but the core is rated up to 500HP by the manufacturer.

E85 really helps keep all temps down... It was easily the best mod I ever did for my RB25

  • Like 1
+1 - 320 odd on E85
Been tracking racing my R33 for 7+ years with that set up no problems.
Everyone has an opinion on these coolers but the core is rated up to 500HP by the manufacturer.
E85 really helps keep all temps down... It was easily the best mod I ever did for my RB25
Wow not bad at all! Built motor?
8 hours ago, Girts said:

How many kms do you get to a tank?

It's a track-only car, and not registered. A typical event would be 40 full noise laps of Mallala, plus 8 or so slower outlaps - maybe 120kms total. We would use around 100 - 110 litres of E85, so about 65km to a tank? We didn't build it for economy.

  • Like 1

My car makes 312rwkw on e85. Track economy is similar to geedog. On the street it does just under 300km for a 65lt tank, non highway driving.

On the weekend i drove 120km + each way to the track, did 25-30 laps of phillip island. Around 420km all up. Used around 145lt of the good stuff.

On 12/26/2015 at 5:32 PM, V28VX37 said:

I'm running a 2013 Hypergear ATR43S22 and a Trust turnflow (vertical flow) intercooler, 275rwkw @ 20psi on PULP controlled by a Blitz D-SBC.

I have about 4mm preload on the actuator arm from memory, set by the master himself (Stao).

Here's a photo of the Trust intercooler, the end tanks are top and bottom as opposed to the sides as in most return flow coolers.

It's still got a sharp 90 degree bend on the top side to clear the chassis rail, may cause some restriction:

 

13994336254_b0636c4c23.jpg

 

EDIT: More photos of the installation here: http://www.sau.com.au/forums/topic/348655-r34-gtt-front-mount-intercooler-installation/?p=7265769

A quick update for anyone playing at home – this exact setup plus a larger fuel pump made 318rwkw when retuned for E85 in early 2018. So the Trust turnflow definitely goes beyond 300kw.

Dyno sheet: https://www.sau.com.au/forums/topic/55845-rb25-turbo-upgrade-all-dyno-results/?do=findComment&comment=7866850

The car ran smoother on E85 compared to PULP but the fuel uneconomy was atrocious – about 20L/100km on average for the less than 1,000km I drove it for before selling. Still not quite the ~35 l/100km Bill posted above though :) 

It's not so much the FMIC can go above said power levels, it's more so you need to look at how effective it is at cooling the charged air and how much it can flow. Looking at HP ratings manufacturers randomly put on them is trivial. 

Standard fuels have much less knock resistance than say E85 or PULP w/ water meth. Hence will knock much easier, running E85 your intake air can be close to 100 degrees without you running into any issues where as if you were just on 98RON you'll run into knock, etc. 

 

  • Like 1

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

    • Yeah based on old XRC5964S specs, it looks to be roughly GTX3576R sized? But this 5964S compressor will flow 90lb airflow somewhat similar to the compressors in both the GTX3584RS or G35-1050.. I fully expected the 0.64 rear A/R to choke up top - seems way too small from typical convention - but these are seemingly beneficial over the prior 0.82 results.. Be interesting to see if he comments on the EFR question in that thread - he mentioned in a prior video that BW EFR's were the "cats pajamas 10 years ago", but by the sounds of things all his kits have been using Xona for quite a while now.
    • Yeah it’s still got the oem manual gearbox and clutch, only kinda mods are a blow off valve, coil overs, and a aftermarket intercooler. Also had it for about 2 months now with a lovely midnight purple paint on it.
    • Yeeeppp, been following a lot of the testing on the latest Xona stuff and there are some mental results.  He also went over 1000hp @ 4 hubs on his Mainline with a XRE6364S (63mm) which was also well into the 20psi range before 4000rpm on a 2.5. Crazy stuff. Fwiw the XRE5964S is basically the modern equivalent of their old HTA3582 - would drive nicely enough on an RB25 or 26, but proven capable of a huge amount of power if you want to spicy with rpm tho even at sane boost levels will make stout numbers 
    • The axels in my R33 seem tired, and have a bit of play in them. I cannot find any new of course, not interested in buying used, but I am looking to see if anyone can identify some cross compatible axles. In the states I have seen suggested for S chassis the J30 axles, however for the skyline (as best I can tell) the lengths are about an inch off (2.5cm) on both sides. R33 my measure L 22" R 24.5" GPT L 22.5" 24.25" J30 L 23.5" 25.5"  so shaft length is probably an inch wider. Not sure if someone has another still remanufactured option besides the J30. I figured worst case I can buy a pair tear them down and swap the center shaft. My other option was reaching out to GSP to see if they cannot piece together a set, since the axle stubs are still manufactured, I wouldn't think it be that hard to find a shaft or make a shaft work. 
    • Potentially some interesting data for some of you here; Hank Iroz from Iroz Motorsport testing a new Xona Rotor 5964S on a Audi RS3 2.5L DAZA motor. https://facebook.com/share/p/14EU18MyDqZ/ Cliff Notes: Turbo has the new Xona XRE compressor aero with an X4C compressor cover, reportedly 0.64 rear housing. 900whp (670kw) @ 37psi, 170k shaft speed, motor is making 2bar (29psi) boost by roughly 3800rpm, 500lbft (670nm) torque by 3500rpm. They overlaid a stock RS3 on USA 91 fuel (red), and a "Stage 2" RS3 on E85 (yellow), and this 5964S (blue) - the 5964S isn't losing any ground to either. Apparently out-flowing their prior tests with a Xona 8264S (green), and this 5964S (white) also has a smaller A/R than that did.
×
×
  • Create New...