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scotty nm35

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Everything posted by scotty nm35

  1. What can you do, no-one could have predicted I would stretch head bolts. Looks like the little 25 is not as tough as I thought. Hopefully its just the studs though. Anyway, we can rebuild it, we have the technology... lol.
  2. Its easy, twin gt40's sticking out the bonnet should get me there. lol. Thanks Dale but im more than happy with the powah it has now, It looks like I will have to do open heart surgery on my poor engine though, and Gleeson's.
  3. Yep, I figure there is no point getting another engine for it to just lift the head again. This way with the L19's I know the head studs are good for 1500hp or more. It looks like VQ25's have the same head bolts as the VQ3.5de hence the same head lift issues at around 500whp. Anyone pushing for over 300kw would have to consider these L19's at some point.
  4. Here are the L19 ARP head studs, exactly what I need. http://my6thgen.org/f17/arp-l19-headstuds-597/
  5. http://www.jimwolfte..._HEAD_BOLTS.pdf Ours are the 26 hc rockwell early VQ35de bolts I'm fairly sure. Ours have one bump on them anyway. I'm sure the ARP studs will crap all over them anyway.
  6. Haha, keen as ey Aaron. I would need to get Nissan to order the gaskets and wait for the stud kit to come from the US, hopefully the same thread size etc...
  7. Im leaning towards Paul's suggestion of an ARP stud kit and just replace the gaskets after checking the heads are straight. It will take some time though...
  8. Yep, it has a top end tick though, not sure what the issue is with it, or whether it will handle 350kw.
  9. Sounds like mismatched tyre sizes to me. Can you borrow a matched set to try or just rip the front prop shaft out for the time being?
  10. Mine has overheated many times too, like I said, the rear of the heads doesn't cool too well so if it gets hot, that will be the failure point. I'm still not sure which path to take, probably best to buy a s/h motor and drop it in but the 3.5 build would be nice, so would the 2.5dd high comp turbo'd.
  11. Mmm, that doesn't explain Gleeson's almost stock car with exactly the same issue. I was looking at the pathfinder mod, I think I may be able to do my own version. This issue is documented as a common 3.5 problem when boosted. http://www.jimwolftechnology.com/wolfpdf/VQ35-VQ37_COOLANT_SYSTEMS_HEAD_GASKETS_HEAD_BOLTS.pdf
  12. Well, no great results yet, as soon as we strapped the car down to the dyno we realised the slight overheating issue I have been having for a while was actually a blown head gasket. We did a carbon test on the cooling system and got a positive result for exhaust contamination. It looks like either a head rebuild or another engine is going in. It's very similar symptoms to what Gleeson's car is having, perhaps its a common issue/fault? I may look into the pathfinder cooling mod after all Cam. With the boost at around 19psi it was flowing over 330kw still so there is good power there, at least 350 comfortably, perhaps more. Now to find an engine. Alex, the 76 graph looked almost identical to the 71 graph, just at lower boost. Transient response is much better though, looks like a good turbo match for the engine.
  13. If you're after a custom setup drop around and let me quote it for you. As for the ban, he just wants you to search. Apparently you can find custom exhaust parts if you do.
  14. You know its crap when Aaron believes it. lol.
  15. They do, Garrett have made quite a few external gate housings. Split pipes are generally small in piping size, I have never seen one with 3 inch or bigger off the turbo, although I'm sure they exist.
  16. How many manifold studs have you broken though? I agree, the bellmouth is easier for me to make and will flow much better until the wastegate opens, then it would depend on the internal design. They would be fairly comparable at wot if they were designed well.
  17. +1 ^^^ I may have to test all this out on the dyno as I was under the impression taking the panel out and running without a filter would make very little power difference. Perhaps there is merit in testing a few options including the paper one...
  18. Are you in Melbourne? Drop around, I can just cut the bracket off if you like and have a look at the quality and any issues you have. I have found a supplier of smooth internal flex joints, they don't restrict power at all and will help save your manifold. Imagine the force your exhaust transfers through the turbo when you go through a corner hard, that's a lot of leverage.
  19. The panel filter I have here has 84 folds at around 1 inch deep, multiply that by 2 (as I was only counting the tip of the fold and each one has two sides), it should come to 169 inches long approximately. That is a massive surface area. I like your anti-geek pics Cam but I don't think it helps you case much at all.
  20. Can you post a pic of the stepper? I have a few small ones laying around here... Talk about overcomplicated, does the stepper actually compress the air for the wastegate actuator?
  21. It is AFM airflow cut, a feature of the stock ecu. You will have to lower the boost for now and look at an ecu to get rid of it completely although I thought the SAFC had a voltage clamp built in...
  22. Lol. Back in your box. I compared a stock paper panel and a pod just before, the paper one looks like it would have twice the surface area. Does anyone have an old pod they can cut up in the name of science? I will measure the panel filter.
  23. I would be keen too but I will have a car here to work on. Tuning the 76 tomorrow night, I can already see there will be improvement, hopefully the top end is the same or better too.
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