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240hoke

The VQ35 is mounted (Pics)

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trwebb26    15

Austin,

 

Lookin awesome. It looks like you've investigated everything enough for me to be inspired and try the swap myself. I've been toying around with the idea of many different swaps with the goal of 400 hp (L28ET, SR20DET, Ecotech, and RB26 were on the top of my list). My trouble with the swaps:

L28 - Whether you like it or not - it is old technology and very little aftermarket parts support. 400hp requires a built motor for sure.

SR20DET - Imported from Japan (like a box of chocolates - you never know what you're going to get). You have to have a pretty wild setup to get over 400 hp with this thing because of displacement.

Echotech - Same problem with power as the SR20DET... pretty wild setup needed for reliable 400 hp.

RB26 - I'm not so worried about the initial cost of the engine, but the parts cost. I remember a friend of mine used to have an old Jag and the parts were CRAZY expensive.

 

With all of the work you've done - the VQ looks like it will be a great platform in the S30... Easy to find in the US with LOTS of upgrades avaialable. New Technology. 6 speed. Strong bottom end. Smooth Power cuz of the V-6, LOTS of room in front of the engine for twins.

 

I only have one beef with everything written so far... You said you applied 1000 lbs in a static FEA program and only got a factor of safety of 2. Be very careful with this... the torque of the motor isn't the only thing that will be stressing the mounts. Every time you go over a bump there WILL be some vertical acceleration on the mounts (F=ma). 3G's isn't an unreasonable number for vertical acceleration. If there is 200-300 lbs of weight on the one mount (for example) - you've got an effective load of 3 times that - not taking into account engine torque. Reconsider the V8 guys and their plea for you to make a crossmember.

 

I'm looking forward to more updates! Keep em' coming!

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blaze73    0

Firstly, amazing work man. I loved your car with the L28 and I love it even more with the VQ.

Secondly, you have probably already looked through this, but in case you havnt, and to anyone else looking into this swap, there is a guy putting a VQ35 into an S13 with all the stock wiring/computers. He is a Nissan/Infinity tech and seems to know the systems in and out so he could be a valuable resource. His thread here:

 

http://forums.nicoclub.com/zerothread?id=207033&page=1

 

Ideally, I would like to do this swap but the initial price of the engine and the insane wireing (or $$$ for a standalone that will run all the thing) is outta my league. Best of luck!

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240hoke    32

Thanks for the comments guys!

 

Ive been working on the wiring harness I stripped the covering off everything and have been tracing where all the ECU wires go in the main harness.. its a mess. Ive seen that thread on NICO and its what inspired me to keep working on the stock stuff. That guy is local and only lives like 30 minutes away so Ive been trying to get in touch with him although no luck so far.

 

My bro is a computer engineer and software designer for Garmin, he works with CAN systems a lot so I'm hoping I might can work with him also if i have issues. I was thinking about making something that would send out the same signals as the various sensors around the car and the security system to trick the ECU and make it easy for others to do the swap... my brother said he could program the chip and design everything but we will see where that goes, if it will even work.

 

OTM and Sparky - Thanks! The TR6 is my dads, he just picked it up a little while ago. Its a really fun little car. I de-smogged it over Christmas for him and started working on tuning. After working on and driving something like that, which is newer then the Z, you really appreciate how advanced the z was for its time.

 

Oh and just say no to stromberg's!! heh.

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Guest Shocker1322   
Guest Shocker1322

Since I have been using this thread as a guide for our VQ35 project, I thought I would upload some pictures of the progress. The engine and tranny are from a 2005 350Z which is going into a 1977 280Z. The car's focus is on the track application.

 

 

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The engine is mounted with space for a 1/4-1/2 inch urethane spacer.

 

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The crossmember has been boxed in on the back.

 

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The oil pan is about an inch below the crossmember, and thus an inch closer to the ground than stock. Since this car has already been dropped about 3 inches, a skid plate will be fabricated to protect the oil pan.

 

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We chose to suspend the tranny mount from the roll bar. This gives us plenty of room for a duel exhaust system. I will get some pictures from under the car once it is put on the lift. Currently there is no front end.

 

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We used the same trick as Austin of cutting the shift linkage and welding the yokes together. Since the original shifter bracket was modified, a bushing needed to be fabricated to offset the loss of height from the original.

 

I will get some more pictures of the progress as I have time. The steering now works. The left hand engine mount interfered with the original geometry, so that shaft was cut and repositioned.

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blueovalz    51
Wow! Great work Shocker!!! BTW, get rid of the Unorthodox crank pulley. Your crank bearings will thank you!

 

Justin

 

 

Is that only with this motor? My UR crank pulley on the SX has lasted more than 180K miles with no issues (214K on the motor) and still going.

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Guest Shocker1322   
Guest Shocker1322

I was going to question this myself. The engine came with the pulleys on it and we do not have the stock ones. Are these pulleys really a hazard to this engine?

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blueovalz    51

Interesting thread, but I couldn't find what I wanted (started getting frustrated when those guys couldn't figure out if an internally balance motor needed a damper or not), and the link in the forum didn't get past my firewall. Is it correct to assume from what I read that the OEM pulley is a half-assed damper, and that replacing the OEM pulley with a solid metal pulley effectively eliminates the damping (what little there was) of the OEM part?

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JustinOlson    13
Is it correct to assume from what I read that the OEM pulley is a half-assed damper, and that replacing the OEM pulley with a solid metal pulley effectively eliminates the damping (what little there was) of the OEM part?

 

That is my take on it. I'm not sure how Half-Assed the OEM piece is. It'd imagine it takes care of the harmonics it needs to take care of on a stock engine.

 

Justin

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jeffneal66    11

I have not had a chance to look very closely at the stock crank pulley on the VQ, but there seems to be a move in the OEM engine designs to use the serpentine belt as the dampener. The crank pulley is usually solid, and the belt and belt tensioner take up the harmonics. Whether or not the engine is internally balance doesn't determine the need for a harmonic balancer, it is the harmonics the engine creates during operation that require the use of a harmonic balancer, and that changes with RPM.

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240hoke    32

This might be a good topic to make another thread on....

 

Anyway Ive been draggin' my butt lately on this project. Been working on some other thigns that I now have wrapped up so Im ready to get back to work. With spring break around the corner I'm hoping to finish up the fuel and wiring and then she will be almost done. I'm using the stock ECU and wiring harness :)

 

Anyhow Ill be updating this thread as I go as well as my website.

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trwebb26    15

Lookin good shocker! Can't wait for both of you to show some more progress!

 

BTW... i think the general concensus is that your ground control camber plates need to be mounted on the underside of the strut tower. I can take some pics of mine mounted that way if you need to see them.

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