Muncie Posted July 29 Author Share Posted July 29 (edited) This is last few bits mainly service stuff, good synthetic oil trying a k&n oil filter heard good things about these on v6s with better oil pressure. An8 fuel pressure reg fuel haven't decided how to fit it yet. Dump valve will probably go by turbo mainly because there's nowhere else it will fit, can't go by throttle body due to MAF and other sensors already there. Edited July 29 by Muncie Think I was having a stroke while typing 4 Quote Link to comment Share on other sites More sharing options...
shrike Posted July 29 Share Posted July 29 Could you put the BOV on the hot or cold side of the intercooler before the Maf? Quote Link to comment Share on other sites More sharing options...
Muncie Posted July 29 Author Share Posted July 29 1 hour ago, shrike said: Could you put the BOV on the hot or cold side of the intercooler before the Maf? I could stick behind bumper but worried about road dirt getting in to it. Drivers side of engine bay has fuse box maf ABS and cruise control unit oh the power steering reservoir and now the catch can too. She's pretty busy that side ! I know by throttle body is best but I'm up against packaging problems now. Quote Link to comment Share on other sites More sharing options...
Muncie Posted July 29 Author Share Posted July 29 Have done oil change and fuel filter delighted to find fuel filter wasn't full of junk. Oil was free of any sparkles too but black as Guinness for 2000ks better keep chipping away at the rich tune. 2 Quote Link to comment Share on other sites More sharing options...
shrike Posted July 29 Share Posted July 29 49 minutes ago, Muncie said: I could stick behind bumper but worried about road dirt getting in to it. Drivers side of engine bay has fuse box maf ABS and cruise control unit oh the power steering reservoir and now the catch can too. She's pretty busy that side ! I know by throttle body is best but I'm up against packaging problems now. My old R32 had the BOV post the intercooler behind the front bumper and it went ok, did get alittle dirty but didnt have any issue but see your point Was trying to find a picture but the old forum is dead :0 Quote Link to comment Share on other sites More sharing options...
Muncie Posted July 29 Author Share Posted July 29 D1NZ Forum? 26 minutes ago, shrike said: My old R32 had the BOV post the intercooler behind the front bumper and it went ok, did get alittle dirty but didnt have any issue but see your point Was trying to find a picture but the old forum is dead :0 To be fair its a 50mm the pressure drop once that sucker opens placement probably is that important for this thing. I've got bugger all joins in system so I've got to able to screw them back in, passengers side one goes in with three full turns before it finds home. Not alot of free metal either to put the V band in to. Quote Link to comment Share on other sites More sharing options...
shrike Posted July 29 Share Posted July 29 2 hours ago, Muncie said: D1NZ Forum? To be fair its a 50mm the pressure drop once that sucker opens placement probably is that important for this thing. I've got bugger all joins in system so I've got to able to screw them back in, passengers side one goes in with three full turns before it finds home. Not alot of free metal either to put the V band in to. Skylines Downunder it shut up in 2020 and I can't find where I hosted/backed up the pics (may have been on a dead harddrive too) I also ran the Rb25det Maf in the intercooler piping, might have had that post intercooler and BOV pre intercooler was awhile ago think my reasoning at the time was if I was removing air for the system I wanted "hot" air from pre intercooler to be removed but tbh can't remember I also know alot more now then I did back then :p Any reason for the BOV? you don't have to run one, also if you look at the borgwarner turbos with the inbuilt BOV they are right on the compressor housing. AFM/MAF you need to return the bov vented air back after the MAF/AFM as its already metered the air, but as you said if you run it before it hasn't metered the air yet so should be fine Does the ECU you have reflashed have any options for MAP? Guessing you can't get the MAF/AFM closer to the throttle body Quote Link to comment Share on other sites More sharing options...
Muncie Posted July 29 Author Share Posted July 29 I mainly want to fit the BOV as this doses its head off and stupidly loud surely not fantastic for the turbo over longer term. I have another ecu im building up that's going to have a few more inputs so can run a MAP sensor once it's put together needs a expensive board to replace the EEPROM so that's a little down track. There is ways to tune MAFLESS but needs expensive software and I'm not at the level to do it by a long shot. So BOV is mainly to stop compressor surge and hopefully make it a bit less conspicuous, once I turn it up a bit to its only going to get worse. 1 Quote Link to comment Share on other sites More sharing options...
mjrstar Posted July 29 Share Posted July 29 @shrike you might have your wires crossed with regards to venting the bov post afm in this particular install due to afm being in the pressure side? What you do want to avoid is the bov being able to bypass the afm. This is mostly due to the likelihood of idle trims turning to shit due to leakage under vacuum (maybe this is what you are getting at) I think he'd need to vent the bov into the inlet of the compressor or other low pressure area and position the bov somewhere in front of the afm. 1 Quote Link to comment Share on other sites More sharing options...
shrike Posted July 29 Share Posted July 29 53 minutes ago, mjrstar said: @shrike you might have your wires crossed with regards to venting the bov post afm in this particular install due to afm being in the pressure side? What you do want to avoid is the bov being able to bypass the afm. This is mostly due to the likelihood of idle trims turning to shit due to leakage under vacuum (maybe this is what you are getting at) I think he'd need to vent the bov into the inlet of the compressor or other low pressure area and position the bov somewhere in front of the afm. Yeah thats what I'm meaning if he placed it after the AFM/MAF it would need to still have the air enter the engine right? and not bypass the AFM, if its in front of the AFM should be fine Sorry been awhile since ive played with AFM/MAF done alot of MAP based tuning on and off etc The BOV he has doesn't have a return option its straight to atmosphere Quote Link to comment Share on other sites More sharing options...
Muncie Posted July 29 Author Share Posted July 29 It's an ass about setup having airflow meter in the pressure side it does work fine, has some benefits too any leaks pre afm don't really affect how the car runs. However anything after the MAF fucks things up even worse. 2 Quote Link to comment Share on other sites More sharing options...
cletus Posted July 30 Share Posted July 30 On 28/07/2024 at 21:20, Roman said: Yeah it can seem overly complex but once you start to realize the benefits, its crazy hearing people talk about how a particular carb lets them have high rpm power, or midrange but runs lean up top. Then similar for ignition timing haha. Can have best of all worlds! unga bunga me tune with screw driver 4 2 Quote Link to comment Share on other sites More sharing options...
Roman Posted July 30 Share Posted July 30 Here's me criticizing carb people while I cant even get my engine to idle without blowing up 2 6 Quote Link to comment Share on other sites More sharing options...
Muncie Posted July 30 Author Share Posted July 30 I can't get mine to idle but runs clean up to 6000rpm...... what's this about screw drivers? Which port on laptop do I insert a flathead for idle speed. 2 Quote Link to comment Share on other sites More sharing options...
Muncie Posted August 3 Author Share Posted August 3 Did some stuff that feels insignificant but has made this thing way nicer. Took the crossover pipe out and cut 10mm out of the up pipe to get it away from the subframe as it makes a ridiculously loud rattle as it only just touches the but enough to drive me mental, 2 hours later rattle is 99% gone I think what's left is probably something to do with the exhaust which is due its own work. I installed a check valve in the brake vacuum hose. This thing occasionally stalls still bugger me what a luxury brakes are when the engine stops halfway through a turn. I put gas in it! At a petrol station I know amazing right? then drove it around to get dinner and got pulled over for MY LED headlights and sent on my way with a friendly recommendation to put the stock ones back in which I will. I'm going to put the other wheels back on for now this thing blazes the 275's without too much effort so I will stick some better shocks in and worry about looks later cert shit and all. Now it's had a good run it's running a heap better. 3 Quote Link to comment Share on other sites More sharing options...
GARDRB Posted August 10 Share Posted August 10 On 30/07/2024 at 12:53, Roman said: Here's me criticizing carb people while I cant even get my engine to idle without blowing up To be fair if you chucked a Holley on it the VVTI would still fall apart 1 2 Quote Link to comment Share on other sites More sharing options...
Muncie Posted August 17 Author Share Posted August 17 Checked my last Wof sheet have only done 1500 k's since last wof. Wof expires on 1st of December that's a pain in butt as it's ready to race once I fit new fuel pressure regulator. I'll probably have to take turbo off and get another Wof if I want to be at OS Drag day. If I roll up to Wof shop with turbo and intercooler gone but running turbo manifolds wonder how I'll fare? Its easy enough to just bypass from v band from turbo straight to exhaust with a small adapter. Bugger going right back to stock manifolds way to much work if I don't need too. Quote Link to comment Share on other sites More sharing options...
Muncie Posted August 19 Author Share Posted August 19 Started doing fuel reg upgrade ordered wrong hose tails I'll eventually go to a different fuel rail so this is all proof of concept so it can be road tuned. Will have to hold to smaller hose tails arrive. Have done speedflow AN6 for return as had those parts in my stash. Was able to squeeze the hose over larger tail but I can see it failing and starting a huge fire so I'll wait it actually split sitting over night so I'm glad I didn't fuck around and find out. Hopefully this evens out the fueling which is rich as fuck at idle and close enough to leave alone at 6000rpm. 5 Quote Link to comment Share on other sites More sharing options...
Muncie Posted August 20 Author Share Posted August 20 Still got a high idle and a squeek coming from somewhere when on boost, idle is actually fine cold and progressively gets higher as it warms before it settles at 1350rpm and just stays there. 7th time manifold off? Is it time to give up on this particular inlet manifold..... probably, I have the stock one I could cut up and do a nicer job of I might throw some gaskets at it first incase I've pinched something not resorted to RTV yet. Quote Link to comment Share on other sites More sharing options...
fletch Posted August 20 Share Posted August 20 Have you got the wires to the iacv crossed and it's trying to close to lower the idle as it warms up, but is actually opening and goes all the way to max open. 2 Quote Link to comment Share on other sites More sharing options...
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