garvice Posted October 9, 2010 Share Posted October 9, 2010 Well done, I reckon it is moving at blistering speed (though that is relative to my project which has sat on the sidelines of my life for the past 6 months). Quote Link to comment Share on other sites More sharing options...
markrolston@mac.com Posted October 17, 2010 Author Share Posted October 17, 2010 no real progress to report. Engine is torn apart and I'm ordering parts for it this week. we're doing a little port and polish on the heads, and looking at what we want to do for the block. There's not a lot of VQHR info out there. HR centric advice is welcome! For now here are 3 pics of the car sitting at Al's. mark Quote Link to comment Share on other sites More sharing options...
Pharaohabq Posted October 18, 2010 Share Posted October 18, 2010 Hey Mark, I've gotten a lot of good info from the writeups from Forged Performance. Check out some of their posts on My350z.com. I've read enough that I don't want to take apart my VQ35HR unless I really have to. I've gotta give you kudo's there. These aren't simple engines. Yours is going to be a beast and a half, so you might want to talk to them about some of the work they've done. You were thinking Twin Turbo right? Have you worked out your custom intake plenum yet? How much shorter than stock do you think you'll need? Keep the Pictures coming, I'm loving your progress! Phar Quote Link to comment Share on other sites More sharing options...
sq_creations Posted October 18, 2010 Share Posted October 18, 2010 The chassis looks amazing. Nice Work. Quote Link to comment Share on other sites More sharing options...
MREDDLE Posted October 19, 2010 Share Posted October 19, 2010 I have been watching your build(s). I have been building a VQ35DE for a year now. I have found that real N/A power comes from the head work, cams, and a stand alone ECU, with the help of alot of compression. I am looking at 13.5-14:1 compression. All this is more important with dynamic compression and with the adjustable cams. I believe a real monster of a motor would be: VQ35HR block and heads, VQ40DE crank, custom K1 rods or Pauter rods (Both the lightest I can find), CP Custom pistons (13:1 com), E85 fuel or C16, 1000cc injectors, Haltech ECU and with custom JWT cams. I would port the heads alot, with over sized valves, then send them out to be extrude honed. Quote Link to comment Share on other sites More sharing options...
olie05 Posted October 25, 2010 Share Posted October 25, 2010 This is looking really great. Can't wait to see the finished product. Quote Link to comment Share on other sites More sharing options...
markrolston@mac.com Posted October 28, 2010 Author Share Posted October 28, 2010 Hey Mark, I've gotten a lot of good info from the writeups from Forged Performance. Check out some of their posts on My350z.com. I've read enough that I don't want to take apart my VQ35HR unless I really have to. I've gotta give you kudo's there. These aren't simple engines. Yours is going to be a beast and a half, so you might want to talk to them about some of the work they've done. You were thinking Twin Turbo right? Have you worked out your custom intake plenum yet? How much shorter than stock do you think you'll need? Keep the Pictures coming, I'm loving your progress! Phar The plenum won't be custom for any height issues. It will be to do something that flows better and looks way cooler, which can be achieved in one design, especially when you have the space under the hood. Most factory motors are a compromise between performance objectives, part cost, and packaging limitations. I'll be less constrained. And forged has little to no info on their site about HR motors other than plumbing a turbo onto a mostly stock motor. I still can't find anyone who's done a lot of internal work. But the basics are the same and I know where I'll get the parts so I'm generally confident at this point. Quote Link to comment Share on other sites More sharing options...
macr32 Posted October 29, 2010 Share Posted October 29, 2010 check out GTmotorsports.com they are doing some amazing stuff with VQ's. My 370z will be getting one of there tt kits in the near future. Quote Link to comment Share on other sites More sharing options...
Pharaohabq Posted November 5, 2010 Share Posted November 5, 2010 So Mark, how aout some picts of the HR internals, Anything you found particularly nice inside, or something that should be done differently? What sort of changes are you thinking? Your electronics are still going to be based on stock right? There's a lot that's known about the HR engines, but still there's a lot of questions. Phar Quote Link to comment Share on other sites More sharing options...
Pharaohabq Posted December 20, 2010 Share Posted December 20, 2010 so Any news, Mark? Coming up on 2 months quiet.. Quote Link to comment Share on other sites More sharing options...
markrolston@mac.com Posted December 22, 2010 Author Share Posted December 22, 2010 so Any news, Mark? Coming up on 2 months quiet.. It's been slow lately. We got caught up seam welding the firewall so it's perfect and frankly it's taken forever. We are also going back and forth on designs for the hood hinge. Since the whole front-end tilts the hinge must allow the headlight buckets to clear the bumper when it swings up. That's a design challenge. We have a plan but it's been slow to resolve. On the engine front, after a lot of calling around it became clear that while many people advertised HR-based parts there were actually very few around. I did manage to buy some parts but most ended up getting made custom for the job (ie: valves & pistons). I'll tell the whole story once I get to a stopping point. The engine is apart, most of the parts are in, but it's now waiting on the head work and block work. We're also starting to look at dry sump solutions. There are DE examples out there but again, no HR version I have yet to find. here are 2 random pics taken during this slow window. Quote Link to comment Share on other sites More sharing options...
rturbo 930 Posted December 22, 2010 Share Posted December 22, 2010 What differential and axles are you planning on going with? Quote Link to comment Share on other sites More sharing options...
markrolston@mac.com Posted December 23, 2010 Author Share Posted December 23, 2010 (edited) What differential and axles are you planning on going with? The diff is done. I'll post a picture soon. It's a custom built ford 8.8. It has an Eaton LSD, and Ford Racing ring, pinion, bearings, etc. The stub axles are custom made from the driveshaft shop. Edited December 23, 2010 by markrolston@mac.com Quote Link to comment Share on other sites More sharing options...
markrolston@mac.com Posted December 31, 2010 Author Share Posted December 31, 2010 The diff is done. I'll post a picture soon. It's a custom built ford 8.8. It has an Eaton LSD, and Ford Racing ring, pinion, bearings, etc. The stub axles are custom made from the driveshaft shop. here's a pic of the diff parts before final assembly Quote Link to comment Share on other sites More sharing options...
rturbo 930 Posted December 31, 2010 Share Posted December 31, 2010 What made you pick that differential? Not knocking the choice, just curious what your reasoning was since there's quite a bit to choose from. Quote Link to comment Share on other sites More sharing options...
markrolston@mac.com Posted December 31, 2010 Author Share Posted December 31, 2010 (edited) What made you pick that differential? Not knocking the choice, just curious what your reasoning was since there's quite a bit to choose from. lots of parts to choose from, ability to build it light and strong, cheap, and the right size/weight. Edited December 31, 2010 by markrolston@mac.com Quote Link to comment Share on other sites More sharing options...
Forcer Posted December 31, 2010 Share Posted December 31, 2010 This is full of awesome that I find myself envious of. Quote Link to comment Share on other sites More sharing options...
Pharaohabq Posted January 6, 2011 Share Posted January 6, 2011 (edited) Those custom stub axles on your diff, If you wanted to use the stock speedo, you'd need to have the toothed rings put on so the sensor can pick up your wheel RPM. You're probably going custom on that too though I'm sure. Edited January 6, 2011 by Pharaohabq Quote Link to comment Share on other sites More sharing options...
Pharaohabq Posted March 7, 2011 Share Posted March 7, 2011 Hey Mark, How're things coming? I guess you've been pretty busy building rather than posting. Phar Quote Link to comment Share on other sites More sharing options...
markrolston@mac.com Posted March 12, 2011 Author Share Posted March 12, 2011 Again things have been really slow. I'm at a stage where we the car is at Al's Bodyshop and he's not moving at the fastest pace. That's sometimes the pain in building something so custom. It's not like there are many shops in Austin willing or even capable of helping me with this. It moving a little faster now. The hood works, I bought some doors for it, and we have the rear quarter panels ready to put onto the car. The engine is still in parts waiting for pistons to get made. slow slow slow. Quote Link to comment Share on other sites More sharing options...
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