Minaj
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Posts posted by Minaj
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The Evo 9 has jun cams, you've heard them/
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On E85 depending how hard I drive it would fill up within couple of days.
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I've been running one from driftmax for 3 years to issues on my high powered build when it was running.
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there can be small differences in avcs cam timing between banks due to belt stretch, lower block deck heights and oil pressure differences. But the valves would have hit happened the first time the cam timing was advanced on the dyno, your engine ran for a while first...
Yup that correct, would've heard it on the dyno.
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I paid around $250 for my road tune by papu a few years back and I was very satisfied with the results, I also had my car tuned my Garry Capper and did not notice much of a gain this was on the same setup.
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I get the feeling youre going to have a hard time in court since you keep dragging it out. I dont think anyone on here can give you credible court permissible evidence no offence meant. Murch gets called on for court but you already had his opinion months ago...
I'm already onto it, I'm in the process of completing my statements backed up with evidence and it's not a easy process.
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Here's another detailed write up on checking PTV clearances, also stating the same minimum PTV clearance as Kelford:
"How much clearance is enough? A safe rule of thumb is .080-inch for intake valves and .100-inch for exhaust."
http://www.enginelabs.com/engine-tech/engine-blueprinting-how-to-check-piston-to-valve-clearance/
So 2.032mm minimum for the intake valves and 2.54mm minimum on the exhaust valves is enough. If your engine had 4.5mm PTV clearance, mechanically there is no way the exhaust valves should of hit the pistons. Unless the tuner has then gone and added a lot of cam timing, which isn't the case.
Surely the 5-7 degrees of cam timing that was dialled in would not be enough to effect 4.5mm of PTV clearance near TDC. More likely minor adjustment compensating for head machining and block decking.
Yup, even if there was a lot of cam timing or avcs advance added on the intake side, wouldn't all the intake valves kiss? The exhaust is not controlled by avcs just a cam gear, but doesn't explain why the other cylinders don't have valves marks on the piston.
Do you know whats the maximum decking limit for the block and max machining for the head is ??
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AVCS timing would/could explain the intake valves kissing the pistons, but Minaj also had the exhaust valves kiss on a few cylinders.
Here's Kelfords cam install and minimum clearance specs:
http://www.kelford.co.nz/checking-piston-to-valve-clearance
Minaj what were your cam specs (lift/duration) and what were the adjustable timing gears set to?
Cam Lift:
Intake:
11.50mm
Exhaust:
10.75mm
Intake duration 272 and Exhaust 268. The adjustable cam gears was 5 and 7 degrees. I was told there was 4.5mm PTV clearance.
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What Pistons did you use in your build? V7+ AVCS specific ones or early square dish type?
I have seen a couple of builds using early Pistons with AVCS and large cams have trouble with intake valves hitting Pistons and subsequently bending them all.
CP piston off NZ Performance, it was early square dish type. The thing with my motor some of the intake valves have touched but not all, on the other hand I don't have avcs on the exhaust side but 2 exhaust valves have kissed cylinder 4 piston and the others have nothing at all.
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I'm after some of your guy's opinion, have you ever had valves kiss the piston because of a tune i know this may be a stupid question but im only after your insights. I know if you run a lot of advance on avcs there is a chance that your valves would kiss the piston, this is mostly on aftermarket cams, but an engine builder would usually check this and tell you how much you can run before the valves kiss.
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Same guy I was looking at buying a DP off a few weeks back:
https://www.facebook.com/JMRDevelopments
http://clubsub.org.nz/forum/showthread.php?38924-v11-JDM-down-pipe/page3
Yup, that's him.
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Good lad, look forward to seeing how this plays out.
I hope you have some written statements prepared for the courts.
EDIT: I can't find anything in the companies register about them, do you know what they trade as?
Chances are:
a. It's not actually a business
b. There is no "limited liability"
c. Any money will be coming out of the guys pocket so of course he is being a dick about it.
I found him, but this was a while ago and the company struck off in 2009. Looks like he was trading under a different name compared to now. Click the link to view.
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Good lad, look forward to seeing how this plays out.
I hope you have some written statements prepared for the courts.
EDIT: I can't find anything in the companies register about them, do you know what they trade as?
Chances are:
a. It's not actually a business
b. There is no "limited liability"
c. Any money will be coming out of the guys pocket so of course he is being a dick about it.
I already knew it was going to turn out this way and I'm already half way through producing statements heaps of time and effort goes into it lol.
He is now GST registered as his business has gone over the 60,000 mark. A friend had confirmed this by a quote from him which said + GST.
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Some of you would know about a recent engine failure I have had, where a intake valve on cylinder one has dropped on the piston during regular street driving. Upon pulling the motor out and stripping it down we also found that some of the valves were kissing the piston. On Cylinder 4 there was 2 exhaust valves and one intake valve kissing the piston and on cylinder 1 there was only one intake valve kissing the piston, what is really strange that the 1 and 3 banks move the same time as 2 and 4. But there is no signs of valve marks on sides 1 and 3 except for valve dropping on cylinder one. Cam timing was all maintained and checked by another an member off here to verify everything lined up. There were no mishifts or over rev because if that was the case it would have been on the other banks as they move at the same time. Brad the engine builder at JMR automotive developments has declined to fix my motor and has blamed it on the tune. Note that the bores, pistons and rings were all perfect there was no scoring or any signs of detonation. Side note, he had also installed cheap Chinese valves where as I had insisted that he replace with genuine Subaru valves
After almost $15,000 being spent on this motor, I will be taking it through the courts as I have sufficient evidence from builders and tuners who specialize in 4 cylinder performance car vehicles.
Just thought I put it out there if any of you guys are or thinking of dealing with him.
Regards,
Minhaaj.
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What's you power output now Avi ?
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Ive got a set of Cusco headers going on mine. Definitely a nice piece of kit and VERY rare! Ive had the redline semi tuned ones with donut flange which are useless and sit to low. And SSI one i had never had any problems with that however only had it for round 10,000kms
Now those are some headers, good size tubing too !
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Hope you find it bro, will keep my eyes out around West Auckland.
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Don't buy the xforce headers.
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Best way to ACHEIVE 2.2-2.3L
in General Vehicle Discussion
Posted · Edited by Minaj
Bro, my motor is done CDB 2.1 built stroke cams etc etc. Im picking up motor this weekend and hopefully have it dropped in by next week. I'll let you know how it goes.