Jump to content
SAU Community

  

61 members have voted

You do not have permission to vote in this poll, or see the poll results. Please sign in or register to vote in this poll.

Recommended Posts

Why are you so attached to that set of engine pipes?  You are compromising the whole system because of it.  I would sell them and buy the CES turbo to cat system, if money is the reason you want to keep them.  If money is not an issue go the Trust, they are a true work of art.

Either way I can asure you that the results will be worth it.;)

SK - what sort of improvement will the Trust front/dump pipe combo make over the standard dumps if your running bigger turbos??

  • Replies 45
  • Created
  • Last Reply

Top Posters In This Topic

SK - what sort of improvement will the Trust front/dump pipe combo make over the standard dumps if your running bigger turbos??

Well I have seen a 25 rwkw increase and 400 rpm earlier boost build from an R32GTR running R34GTR (ball bearing) N1 turbos. That's with no boost increase, in fact there was a boost decrease as it obviously removed a restriction. And no extensivel re-tuning, just a couple of minor fuel and ignition timing changes. More advance as the boost was lower. This improved the response measurably, which is a welcome bonus.

;)

Well I have seen a 25 rwkw increase and 400 rpm earlier boost build from an R32GTR running R34GTR (ball bearing) N1 turbos.  That's with no boost increase, in fact there was a boost decrease as it obviously removed a restriction.  And no extensivel re-tuning, just a couple of minor fuel and ignition timing changes.  More advance as the boost was lower.  This improved the response measurably, which is a welcome bonus.

;)

mmm, sounds impressive...

Not so much interested in more power, but 400rpm earlier boost build???? I LIKE!!

Do you reckon this will be the case with Truck (Trust) turbos??? Being bush bearing, they may not respond aswell as the N1 ball bearing turbos??

mmm, sounds impressive...

Not so much interested in more power, but 400rpm earlier boost build???? I LIKE!!

Do you reckon this will be the case with Truck (Trust) turbos??? Being bush bearing, they may not respond aswell as the N1 ball bearing turbos??

I have no idea, I never use plain bearing turbos:cheers:

CES do a so called hks copy but also a long wastegated version similar to the trust ones. It requires different front pipe obviously.

*cough*

I believe CES calls these their "competition pipes" to distinguish them from the HKS-ripoff version they also sell (as pictured above)

LW.

PS. Nice sig SK :)

How about the flex join? Is that important in GTR's as most aftermarket jobbies have that flex for the front turbo.

IMHO -- and I have no evidence to back this up -- I think the flex joint is a very good idea. Anything the reduces the amount of movement exerted on "fixed" parts (ie. the turbos) is a good thing. Whilst the exhaust is mounted with rubber grommets to allow it to move about, the turbos aren't. Transmitting all that vibration without a dampening effect doesn't seem like a good idea IMHO.

williamsf1 said that the trust units he got recently had a flex joint, even though the press photos don't show one.

LW.

Yeah - would be a pain to get a crack in the pipe after completing the pr!ck of a job to get them on. I am going in on the group buy for the trust front pipes - was thinking if they dont come with the flex join I will just get one put in.

I still think that as internal wastegated turbos go, the TRUST units are by far the best (may not be the cheapest) and as it is a biatch of a job, doing it once seems to save money in the long run....

Hey marcus! did you see the pics I took for you of the R34 wheels ;)

ahhh .... got my car finally and guess what, after all that it has mines dumps allready.... i think i'll keep them for the time being until i have done a few other things to the car i would like to first and that will take priority to these at this stage, plus i'd like to see what power i get with these and the rest of the system and then if i can, compare it to a gtr with trust front and n1s and compare them.

will keep the trust pipes in mind though.

thanks everyone for your opinions and advice.

Jamie

i was in a position to buy either the hks dumps or the trust long dumps as i was also upgrading the exhaust...

i was informed that the long wastegate pipe on the trust systems create more lag, now i dont know how true this is although i was told by a dyno tuner that works on a lot of gtr's

i bought the x-force (hks copies) for only $450 for the pair via crd in sydney.

pls don't take as gospel :)

More lag? I would love to hear what the theory behind that is? I have heard it mentioned that in very high power applications that a (larger) non-split pipe design has some advantages Regardless, the vast majority of people will never get anywhere near those power levels.

LW.

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

    • This. As for your options - I suggest remote mounting the Nissan sensor further away on a length of steel tube. That tube to have a loop in it to handle vibration, etc etc. You will need to either put a tee and a bleed fitting near the sensor, or crack the fitting at the sensor to bleed it full of oil when you first set it up, otherwise you won't get the line filled. But this is a small problem. Just needs enough access to get it done.
    • The time is always correct. Only the date is wrong. It currently thinks it is January 19. Tomorrow it will say it is January 20. The date and time are ( should be ! ) retrieved from the GPS navigation system.
    • Buy yourself a set of easy outs. See if they will get a good bite in and unthread it.   Very very lucky the whole sender didn't let go while on the track and cost you a motor!
    • Well GTSBoy, prepare yourself further. I did a track day with 1/2 a day prep on Friday, inpromptu. The good news is that I got home, and didn't drive the car into a wall. Everything seemed mostly okay. The car was even a little faster than it was last time. I also got to get some good datalog data too. I also noticed a tiny bit of knock which was (luckily?) recorded. All I know is the knock sensors got recalibrated.... and are notorious for false knock. So I don't know if they are too sensitive, not sensitive enough... or some other third option. But I reduced timing anyway. It wasn't every pull through the session either. Think along the lines of -1 degree of timing for say, three instances while at the top of 4th in a 20 minute all-hot-lap session. Unfortunately at the end of session 2... I noticed a little oil. I borrowed some jack stands and a jack and took a look under there, but as is often the case, messing around with it kinda half cleaned it up, it was not conclusive where it was coming from. I decided to give it another go and see how it was. The amount of oil was maybe one/two small drops. I did another 20 minute session and car went well, and I was just starting to get into it and not be terrified of driving on track. I pulled over and checked in the pits and saw this: This is where I called it, packed up and went home as I live ~20 min from the track with a VERY VERY CLOSE EYE on Oil Pressure on the way home. The volume wasn't much but you never know. I checked it today when I had my own space/tools/time to find out what was going on, wanted to clean it up, run the car and see if any of the fittings from around the oil filter were causing it. I have like.. 5 fittings there, so I suspected one was (hopefully?) the culprit. It became immediately apparent as soon as I looked around more closely. 795d266d-a034-4b8c-89c9-d83860f5d00a.mp4       This is the R34 GTT oil sender connected via an adapter to an oil cooler block I have installed which runs AN lines to my cooler (and back). There's also an oil temp sensor on top.  Just after that video, I attempted to unthread the sensor to see if it's loose/worn and it disintegrated in my hand. So yes. I am glad I noticed that oil because it would appear that complete and utter catastrophic engine failure was about 1 second of engine runtime away. I did try to drill the fitting out, and only succeeded in drilling the middle hole much larger and now there's a... smooth hole in there with what looks like a damn sleeve still incredibly tight in there. Not really sure how to proceed from here. My options: 1) Find someone who can remove the stuck fitting, and use a steel adapter so it won't fatigue? (Female BSPT for the R34 sender to 1/8NPT male - HARD to find). IF it isn't possible to remove - Buy a new block ($320) and have someone tap a new 1/8NPT in the top of it ($????) and hope the steel adapter works better. 2) Buy a new block and give up on the OEM pressure sender for the dash entirely, and use the supplied 1/8 NPT for the oil temp sender. Having the oil pressure read 0 in the dash with the warning lamp will give me a lot of anxiety driving around. I do have the actual GM sensor/sender working, but it needs OBD2 as a gauge. If I'm datalogging I don't actually have a readout of what the gauge is currently displaying. 3) Other? Find a new location for the OEM sender? Though I don't know of anywhere that will work. I also don't know if a steel adapter is actually functionally smart here. It's clearly leveraged itself through vibration of the motor and snapped in half. This doesn't seem like a setup a smart person would replicate given the weight of the OEM sender. Still pretty happy being lucky for once and seeing this at the absolute last moment before bye bye motor in a big way, even if an adapter is apparently 6 weeks+ delivery and I have no way to free the current stuck/potentially destroyed threads in the current oil block.
×
×
  • Create New...