What's yours more to the point? You do seem to know your stuff, but haven't said who you are, what your experiance is and who you work for/shop you run. I don't know of any zed specialists north of Brissy. From the things you have been talking about I'm guessing you mainly work with Skylines. UDP's are a often discussed topic here and on the forums in the states. Pretty much always comes down to no proof of failures being caused by a alloy UDP. Haven't seen any snapped cranks or rooted oil pumps with a VG caused by one. Only snapped cranks I have seen have been on 900hp+ engines. General concensus is that the girdle is not strong enough for those applications. RB's are a different kettle of fish with their oil pump issues One piece driveshafts have been used on vairous high powered Z32's for years and years with no issues other than the recent troubles with some carbon shafts. I know that some Skylines have had issues due to the length, but again, hasn't been a issue on Zeds. EGR is just great when it works, but it's not worth the possiblity of failure IMO. At best hesitation, at worst lean out. There is so much crap in teh engine bay that a cop won't get you for it, and it can pass the IM240 test without it. Not that we have to worry about that here in QLD anyway as no one can do the test.
Well I've a Performance Engineering workshop based in Hervey Bay. I have a B Mech Eng, B Elec Eng, MSAE, MIAME. Been messing with these imports since they became common place over 20 years ago. I own the FIRST HR30 import to be registered in Queensland, have a wall of trophies and awards from motorsport events I've competed in. I've worked for Mazda, Nissan, GM, Ford, Toyota, Mistubishi, BMW and a stack of others (done factory calibration mapping for OE on special projects). I'm authorised to tune almost every type of aftermarket/oem ecu (MoTeC agent for this area) I've also been involved in many left of centre projects over a 25yr period. I'm not so much a Z specialist, more an all types of vehicles/engines/fabrication/engineering solutions. Having been involved with ATCC vehicles when the GTR was allowed to race, Go look up Keith Carling and his VG powered vehicle in the mid 90's - and totally dominate all forms of racing. I'm the Nistune agent for the NORTHERN region of QLD, fly all over the country tuning these things. I developed the Type 4 N15GA ecu/adr files(go and check this in the Nistune ADR pack), Z32->R33 ecu conversion. I engineer the winning QLD speedway champion in the 4cyl class (Paul Redman), tune most of the front running Fords/Holdens bla bla bla. I'm fortunate to have learnt a lot of information/skills from guys like Brian Shustd (Bryant Engineering), Geoff Truscott, Phil Laird(GSR Racing),John Patrick, Bert and Wayne Jones, Jim Wolfe & Clarke Steppler, Steve Millen Motorsport (I was to work for Stillen doing VG engine development in 2000, but serious health circumstances prevented me from meeting my work H1B1 visa) - do i need to go on.?? And your qualifications, just to keep it fair?? Come on, lets not get this into a pissing contest, no need for it.. I came on here to offer advice but if seems like all the other forums, people hammering you on things they heard, not the results or problems they've seen. If my helps not needed, I'll go back to keeping to myself and letting my results speak for themselves. Plus I have a bunch of local Z that I work on. I'm currently doing a 700hp, completly legal Z32 build ATM. Cats, Maf's, EGR - everything.
Lean out ?? I think you mean RICH (air leaves the plenum AFTER the MAF's determined it, on boost. Under vacuum the mixture would be rich too, because of the great dilution of inducted OXYGEN vs EGR and consequntial misfire/non combustion - the mixtures couldl read LEAN on a sensor from free oxygen in the exhaust depending on where the sensor is located.
Mech. Engineer and fiddler No pissing contest intended at all! Just curious Always good to have someone who knows what they are on about around! Specs and piccies on the evil Zed please And yes, you are correct with the EGR, was having a brain fart
You'll have someone else trying to get more thanks's than you You'll have to cheat extra hard to stay in front now :rofl:
While we are on EGRs, can they be modded/refreshed to handle higher boost applications? To convince our friend nvz32... I'd keep the cats in the garage and get flanges welded on so you can bolt the cats on if youre defected. Unless they are RTA guys, cops rarely know what tuey are looking at. But they do know a bov when they hear/see one, though i have heard cops mistaking flutter for a bov. You'd be ok if you dont attract too much attention.
lol i was already plannin to weld in flanges for the cats so if i sell it/rwc can just put em back in easy enough.. as for BOV there under the nose where the stock recircs were.. if popo pull me up sayin i had on ill blame it on the fully sick civic or summat goin in the other direction
Please dont! Both myself and BiGZ have had nothing but problems since we installed thermo fans last year. We have both gone back to using the stock viscous fan as a result. Basically with a 16" thermo in QLD heat I was able to drive around with little to no boost and no AC and have temps of around 95 degrees which goes up the faster you drive. With the AC on it hit 100-105 degrees. As soon as you get on the boost you quickly hit dangerous temps (105+). IMHO, stick with the stock viscous clutch fan. If you have a decent radiator you will have absolutly no problems with the stock setup.
The SPAL's are pretty good though. Much higher flow rate than a lot on the market. Sure aren't cheap though! Pretty sure both Rob and JP use them on their evil zeds. I had a 16" davies craig and didn't have any issues (from the fan that is )
