This happened a few months ago, but I still laugh at this. One friday afternoon I was coming home from my university and I was on route 422 between pottstown and reading in PA. I pull up to one of the lights on the stretch in the slow lane next to a black Nissian Maxima (new one). The car looked off the factory floor with a cute younger blonde girl driving it. Not thinking much of it, I thought I would casually take off from the light and smash it while in second gear around 3500rpm, so I put my auto in 2nd. We took off from the light and I notice she is putting her foot into it. In response, I did so to. At that point though the trans was still in 1st, so it shifted itself way too early, and carried on as the indecisive trans decided what to do. The result was me watching the little Nissian speed off into the distance. The one lesson I took from that was, always put the trans in 1st when at 4 lane stop lights, just incase!


In all honesty though even if I did get setup to do a "pass" at the light she still would have smoked me, I went online and saw how fast those things are, and most new cars in general. Me thinks its time to get another DD and swap out the stock 305 LB9.

 

Rather than swap it out, why not just mod it...?

 

I honestly don't know what I want to do with the car motor wise yet. Right now I am thinking about a small block twin turbo setup. At this point though it will be a long while before that happens, I still have 2 years of college, and hopefully land a job in my study area. Once that happens then I can start to rip into the car. Plus she is still my DD, and a very reliable one at that, over 200,000 miles, never left me stranded, so I don't want to mess with a good thing till I have another DD.

 

I don't doubt it. I have an Altima 3.5 SE. It runs and handles like a little rocket ship.

JamesC

 

Altimas are nice cars tho.

 

yeah my gf drives a 3.5 altima coupe, she let me run it at the track one night against my buddys LT1 Z28 (stock) should have seen his face when he looked over and saw me next to him at the finish line lol.... the VQ series of motors nissan puts out are pretty stout V6s

 

well. To make this clear unless your putting out some big power in your sbc you should never race when someone has the jump on you. By jump I mean she was at wide open throttle seconds before you got on the throttle. She had the edge. I few weeks ago the same thing happen to me with a 78 stock c3 vette. I won but he had the jump. I got him in the end but I should have been ahead a alot more.

 

If you consider 218hp to the rear wheels big power than yes ! Just kidding, you have a great point though and who ever gets on it first makes a big difference!

 

You don't have to do as much as you think, not to mention it won't be detrimental to the engine in any way. The Nissan breaths better throughout the RPM band, most newer cars will, and more air can consume more fuel, no secret there. Most guys who run LB9's don't see where the engine is really lacking its' performance, and when these minor areas are addressed, the engine will pull you right past that Maxima w/no problem. I will gladly continue if you'd like, because unlike most I don't mind sharing performance tips, but if you have your heart set on swapping to a larger engine, then I will just stop myself right here...

 

Does this also stand for the lo3??

 

I actually wouldn't mind hearing what you have to say, as a stronger LB9 could hold me over for a while! Thank you!

 

Throttle Body Injection has an advantage over Tuned Port Injection, as you can run a single plane manifold, or do like I have done and run a dual plane w/the divider trimmed down a half an inch in conjunction with a TBI spacer that has also been opened up to run a "mono" type blade. The only problem with Throttle Body Injection is fueling, as you need enough injector to satisfy the higher RPM requirement of your engine (unless you keep it essentially stock), and this goes hand in hand with the cam you choose, heads you choose, etc, then from there it is in your tuning. RPM is easy, duration + volume, but without fuel your going to hit a brick wall. I modified a Throttle Body for TBI and ran it on my cousin's old '90 454 SS Truck years ago, and the engine was starving for fuel even with the increase from the AFPR. An engine is an engine, so give it what it wants. These various intake/fuel designs only change the way we accomplish this, some make it harder, while some make it easier, but in the end it is all the same when you know how to increase volume, speed up velocity, and add more fuel...

 

Your stock LB9 is a dog, and I am referring to everything, not just what people refer to as the "peanut" cam, and crappy head design. The diameter of the individual runner does not work well with the diameter of the intake valve, which is why you hit a brick wall at 4500-RPM, whether it's the LB9, or the L98, higher RPM is irrelevant, and that should tell you right there that both engines are capable of more when you understand how volume works, and how the stock runner literally chokes the engine, even with the stock camshafts. The stock prom is garbage, the Spark Advance and Acceleration Enrichment tables are ridiculous, and the gearing needs to match your setup. Understand that back in the 80's and early 90's, GM just through parts together, and as long as it "sounded" nice, was torquey after the stop light, and looked the part, they sold quite a few, and that was their only goal, to sell as many as possible, not to out do their beloved Corvette...

The throttle body should be the only bottle neck before the intake valve, and the air charge needs to be as fast and smooth as possible (non-turbulent w/increased velocity). The cylinder heads need to compliment the camshaft you choose, and I am not referring to anything too aggressive and costly, as I only use stock parts with essentially mild cam. You need to understand where your power begins, and where it peaks in the RPM band, and keep the engine in that area. If power begins at 2500-RPM, you need to either dump the clutch, or get a stall speed converter that flashes, in that area. If power peaks at 6000-RPM, you need to keep the engine in that area at wide open throttle and either not exceed it, or make sure you at least reach it, and this is also accomplished through gearing and tire size selection. The duty cycle of the injectors should be nowhere near static throughout, so select your injectors based on your horsepower goals, and understand how tuning the prom really works. Spark Advance and Acceleration Enrichment need to be on the money, as does your target air/fuel ratio at part and wide open throttle. Your stock Tuned Port Injection setup has the potential to flow just as good, and even better than most aftermarket units, you just need to understand where to open it up. The same goes for the stock heads...

Edit: Just for quick reference, my stock heads, before and after...

 

AMAZING Port Job

 

Thanks...

They came out pretty good for stockers. The valve guides were also taken down, and believe it or not these are only 1.84" valves but flow incredibly for the 305...

 

Soo.. Intake+headers+camshaf+little work to heads+ tuning with laptop+bigger jets equals fast?

 

Bigger jets? Are you running a carb...?

It takes x amount of air and fuel to make x amount of horsepower, that never changes, the more air you can cram into the cylinders, the more fuel you can burn, and more fuel means more potential horsepower. I use the word potential because the volume of that air source will dictate whether your building for torque, or for horsepower, as this is where your RPM range falls into play...

 

nissan are slow bull

 

im running TBI.... so it has jets? lol

 

first thought was noooooooooooooooooooooo LSX that bietch.. or 350 haha

 

im going lsx... why bother with a small block

 

if only we all had the money.. lol

 

well.... i might sell my camaro and finish my 70 chevelle... thats a real head turner

 

Do you read what you actually write? Those were your own words my friend, I quoted you, you said "bigger jets equals fast", so I asked if you were running a carb...

https://www.thirdgen.org/forums/post...86-post16.html

 

street lethal i'm building my l03 with vortec heads , aluminum 4 barrel intake {1500-6500 rpm } walboro 255 fuel pump , 454 throttle body made for a blow thru setup . lt4 cam an shortie headers with full 3" catback exhaust .an tuning with the ebl flash . i'm guessing 300-375 fwhp . what do you think ? then i'm adding the t70 turbo with a/r of .84 for 8-10 lbs of boost .

 

That turbo is going to spool fast with your setup, your going to love it, just make sure you get your wastegate control dialed in. If you get a chance though try and port the exhaust housing just a little bit though, it helps tremendously. We tested that TBI throttle body that I modified for boost with a carb hat soon after and it worked great, the epoxy easily held and withstood the boost pressure...

 

My 2012 crew cab Titan ran 15.03 @ 92.20 with a 2* timing advance, AirAid CAI, and Magnaflow muffler swap.

http://www.youtube.com/watch?v=iaNb_DS0j7w

With a Hypertech Tuner it went 14.20 @ 94.68 on a 2.02s 60' time.

This is from a 30 mph roll, instant tire spin and moves out.
http://www.youtube.com/watch?v=offjd50ymsI

 

My co workers V6 Altima manual with a CAI and catback pulled a 13.9 not bad for a 3.5

 

If its a 3.5 coupe those little cars move out!

 

It was a 4 door

 

3.5 SER?? That is the only 4 doors that I know of other than the 02-08 Maximas that came with a stick shift.

 

Yea it is a SER looks kinda like this

 

Nissan's newer v6 cars are very stout. The horsepower ratings are slightly underrated as well.