S14 Vh45de
S14 Vh45de
Hey guys,I wonder if any of you have any info I could use. I have a S14 with a SR20det. Now don't get me wrong I love my SR but out here in Oz they have been done to death. It's the same story with the RB series. What I would like to know is has anyone done a VH45de conversion on the S14? I would like to try this but I don't know if it'll fit. But I also want to turbocharge it too. So, has anyone done this before. Any help would be appreciated.:thinker
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450sxtc
- Posts: 364
- Joined: Sun Jun 13, 2004 8:28 am
- Car: 95 pearl vq'd s14 SE, 96 red s14 SE, 88 Rx-7 GXL, 90 GXL, 03 G35 Sedan, parting 91 q45
Bringing back an old post. Just curious. Has anyone measured and found out for sure that the vh45 doesn't fit in the s14. Just curious. I'd like to see some info or even pics showing that this swap will not work. I disagree with the statement about the smallblock. The Vh45 is extremely capable of overachieving the SBC swap. This motor is rated at 278 hp and 292 ft lbs of torque stock which I'm sure everybody knows. What you might not know though is that This motor is built for such an even balance of horsepower and torque that it's rediculous. If anyone knows how to calculate rod ratio then pull out your calculator and you will notice that the 4.5 is within .080" of rod length to have a 1.xx (near perfect) rod ratio. This is the rod ratio that you'd want to attempt to acheive for an even balance of torque an hp. This motor is so smart in it's design. It's all aluminum with a solid deck block (perfect for o-ringing the block), and is extremely capable of being boosted. I belive that this motor is capable of 1000 hp. That's tremndous for it's displacement and weight. I just bring these points up b/c I happen to be working with this Idea in a 95 se right now. This swap has been done in an s13 already and made well over 400hp at the wheels in it's naturally aspirated form. Now......pricewise....well it depends on how dedicated you are to making something work. The SBC is a good swap and cost effective but, it still isn't as capable as the 4.5. This motor can turn high rpms in it's stock form and has pretty strong internals. With a little machine work, and a heck of a lot of math that I have done, this motor can be built with an 8.1:1 compression ratio and a rod ratio of 1.xxxxxx and some change.....This build would give this motor the ability to handle at the least, 17-18lbs of boost, and that's with the stock pistons polished and a set of rods that I don't care to mention the demensions of. No other internal work will be done on this particular application except deburring the heads and some fabrication for a forced induction intake and exhaust manifolds. Now, I'm not saying that this motor will produce 1000hp in THIS form, but, with some work it is very capable of 400-600. Also, with the rod ratio being used, it should be able to turn out 8,000 plus with good balance. Now, on to the engine management. Yes, you have to run standalone. It is really worth it though. You can choose when to active the VVT/VCT based on boost, rpms, oil pressure, ect......just like you would do with V-TEC in a honda. Standalone is a lot of tuning time but the driveability of it is great compared to a carbed SBC and if you were going to run fuel injection on an SBC, you'd prolly want the standalone system anyway. You can get it for the cost of chipping an ECU about 3-4 times. Well, I was just curious about why people knock this swap when it's hardly even been toyed with. It's lots of Fabrication, lots of fun, and there's a lot to learn about the Nissan V-8's on top of that. They are truly great designed motors and we all know this, they just haven't been played with yet. Anyone else interested by this motor????? I love them. If anyone knows where they are at for good prices, I will buy all of them I can afford. Nate