ebayfish Posted October 29, 2014 Share Posted October 29, 2014 I'm trying to increase some horsepower on my 3.0 4wd, mainly for fuel economy. I've cleaned throttle body, ran seafoam through the crankcase, changes fluids, filters, etc. Installed new plugs, wires & distributer. I'm about to drop my headers in, along with a raptor muffler, increase exhaust pipe diameter and delete my first cat. I plan to build an intake soon too. What are some other good means to free up/increase some power out of the 3.0? Link to comment Share on other sites More sharing options...
Terranovation Posted October 29, 2014 Share Posted October 29, 2014 Sounds like you are doing all the right things. I don't know but maybe drop in a small chevy block. The engine bay is wide but narrow. It would be an expensive conversion, but not expensive if you've got the right people who know how to do these things. Supercharger might fit, I've seen photos of them in Pathfinders. Link to comment Share on other sites More sharing options...
Nefarious Posted October 29, 2014 Share Posted October 29, 2014 Cam shafts! Best power adder that you will find for an na vg. Also... vg33e! Lol Link to comment Share on other sites More sharing options...
ebayfish Posted October 29, 2014 Author Share Posted October 29, 2014 Lol. Those all sound like wonderful ideas, but want to leave the the engine in the truck. I was thinking about trying to mod a turbo from a 300z, but not sure how if get better fuel economy, I'd just want to hear the turbo spool up. I guess I'm looking for simple tweeks or bolt on/plug in power. Link to comment Share on other sites More sharing options...
ebayfish Posted October 29, 2014 Author Share Posted October 29, 2014 Terranovation, I know from my old rockcralwer you can fit a a 400 bigblock in the engine bay a Nissan hardbody. With some minor modifications to the hood. Link to comment Share on other sites More sharing options...
Nefarious Posted October 29, 2014 Share Posted October 29, 2014 Cam shafts are bolt on mods... you can easily install them with the engine in the truck. Installing cams would be about 20 times easier than fitting a custom turbo setup. 1 Link to comment Share on other sites More sharing options...
Nefarious Posted October 29, 2014 Share Posted October 29, 2014 To install cams all you do is remove the timing assembly and the cam seals. Pull the valve covers and Un bolt the cam retainers. The cams then slide out forward from the engine. There's a little more to it than that, but that's the basic procedure. I'm going to be going with re grind cams from the z store. They are about 130$ for a pair if you have donor stock cams to send in. Link to comment Share on other sites More sharing options...
ebayfish Posted October 29, 2014 Author Share Posted October 29, 2014 Wow! I figured the Japs made it harder than that. What kind of gains do you hope to expect on yours? Link to comment Share on other sites More sharing options...
V8path Posted October 29, 2014 Share Posted October 29, 2014 Sounds like you are doing all the right things. I don't know but maybe drop in a small chevy block. The engine bay is wide but narrow. It would be an expensive conversion, but not expensive if you've got the right people who know how to do these things. Supercharger might fit, I've seen photos of them in Pathfinders. I agree with Terranovation. I did the small block and if planned properly, its not that expensive and there is enough room in the engine bay. If you're patient, finding an good small block engine for a great price isn't that rare, and the rest can decent salvaged parts. For the time and $, the 300 plus HP was the best upgrade, and it makes the ARB's, the 4.88 gears etc. so much more fun and capable. Low rpm's allow for great crawling control, and long mountain highway climbs are a breeze. For the money of going to a supercharger, what is the HP to dollars ratio? For what its worth, that my 2 cents. Link to comment Share on other sites More sharing options...
Nefarious Posted October 29, 2014 Share Posted October 29, 2014 I expect at least 20 hp and at least 10-15 lb ft with the cams. Plus an increase in mileage. I run exhaust, headers, and soon to be fully custom intake with n60 maf and a snorkel plus an ecu tune. Should be around 210 hp and 230 lb ft torque with my 3.3 swap. In total I will have spent 700-800 dollars in parts including the engine for my entire setup Link to comment Share on other sites More sharing options...
Slartibartfast Posted October 29, 2014 Share Posted October 29, 2014 Make sure you do the vac lines too if you haven't already. Those plus cleaning out the throttle body and EGR port (did them at the same time) woke mine up quite a bit. 1 Link to comment Share on other sites More sharing options...
ebayfish Posted October 29, 2014 Author Share Posted October 29, 2014 I've cleaned the throttle body & EGR valve, not port. I'll probably do that when I do the headers. I've got this slight, rhythmic loss of power under normal acceleration. Its not missing, just every few seconds a slight reduction of power. MAF seems clean & if I'm testing correctly, O2 sensor is alright. Link to comment Share on other sites More sharing options...
k9sar Posted October 29, 2014 Share Posted October 29, 2014 STICKERS! You need STICKERS! 3 Link to comment Share on other sites More sharing options...
ebayfish Posted October 29, 2014 Author Share Posted October 29, 2014 Stickers, we call those sponsors. Stickers only make it go fast, nothing for fuel. Maybe I can get a hybrid synergy drive emblem, that'll help. Link to comment Share on other sites More sharing options...
Terranovation Posted October 29, 2014 Share Posted October 29, 2014 Clear tail lights with coloured led bulbs! That helps! 1 Link to comment Share on other sites More sharing options...
Slartibartfast Posted October 30, 2014 Share Posted October 30, 2014 I've cleaned the throttle body & EGR valve, not port. I'll probably do that when I do the headers. I've got this slight, rhythmic loss of power under normal acceleration. Its not missing, just every few seconds a slight reduction of power. MAF seems clean & if I'm testing correctly, O2 sensor is alright. An ignition miss or clogged up injector is the only thing I can think of that would make it do that, unless your fuel filter's so plugged that the pump can't keep up with demand. Any transmission codes? Link to comment Share on other sites More sharing options...
ebayfish Posted October 30, 2014 Author Share Posted October 30, 2014 I thought ignition too, hence the plugs, wires & distributor cap. I haven't touched the injectors yet. New fuel filter 8k ago. Newer 01 xterra tranny (45k) installed 4k ago, did it before too, no codes. I assume it would still read the new tranny the same. Link to comment Share on other sites More sharing options...
adamzan Posted October 31, 2014 Share Posted October 31, 2014 Unplug the o2 sensor and see if it drives better. If it does, replace it. Link to comment Share on other sites More sharing options...
92Path_68CJ Posted November 1, 2014 Share Posted November 1, 2014 The Nissan racing cams, 3.3 block, Infiniti Pistons, exhaust, new ecu really open it up. Link to comment Share on other sites More sharing options...
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