Im helping a friend do an 00vi swap on his 99 cali spec maxima. He wants to keep his lim and 4th gen injectors. And wants to bolt it right on I explained to him its gonna be off a little but but can still run.

But were wondering will it perform the same since the upper and lower ports won't line up. Or will he have drivabilty issues?

 

Why is he wanting to half a$$ it?
Talk some sense into them.

 

If he fills the original holes in the lim and redrills new ones and use helicoils he'll be able to line the ports up. That's how I did mine, and I didn't dothe 180 degree lim rotation either

 

https://docs.google.com/file/d/0Bx7Z.../preview?pli=1

 

Yea I talked to him already. He can't afford a tune or anyone to tune it

 

How many miles does he have on it and has he performed all of the mid-life maintenance items that help a car run optimally like new O2 sensors?

 

When I did my 00VI, I spent hours going through the tons of threads on the topic. There was another member a few years back (cant think of his name) that did what you are describing. He stated he was going to fix it one day, but it was running fine with the two misaligned. Common sense would tell me that restricting the air flow by reducing the port size would hurt performance, but I can't prove it, and it appeared to run fine without port matching. He will most likely get some gains even with them not lined up, but not as much as port matching.

 

The car runs good. Has 150k miles.
He was impressed with my swap. But like I said he can't afford it. He got the stuff for free basically. So yea.
if it runs and performs fine I guess I wouldn't see the issue with it...
wouldn't y'all agree?

 

Fair enough.

I would just leave well enough alone until I could afford the rest, but that's just a preference.

 

What he said

 

Let's just say hes on a time crunch don't wanna put personal information out there you know

 

Will the car be okay if I drilled bigger holes into the uim?

 

I flipped the A32 lower and enlarged the holes in the A33 upper. I mocked the upper and lower off the car and the runners were just about spot on. I did not install all the UIM bolts.

I can't tell you how reliable it is since I have not had the car on the road in 3 years. It starts and runs fine.

Since your friend has a 99 cali, I don't think the lower can be flipped. The swirl valve actuator is in the way. Get a non 99 cali LIM.

 

I read others doing that too. Which holes you used?

 

How come noone thought to use fourth gen injectors in the fifth gen lim?

 

Because the 4th gen are side feed and the 5th gen are top feed.
Seems like a pretty good reason not to.

 

Looks like the forth gen holes are bigger so why not bore em out

 

If memory serves, the 5th gen injectors flow more than the 4th gens anyway.

 

 

My car is in a snowbank so I can't go look at it so I referred to some photos I took during install and mock up. I drilled new outer holes in the upper.
Attachment 17846

For the inner holes I think I used the front holes, basically mounted like the A32 upper. I remember drilling the 00vi out and the metal inserts came out and the holes ended up being just the right size for the new bolts with enough slop to get the ports aligned. I used some bolts from my B13. Kind of ghetto but it is what it is.

No brackets on the rear either, I have never had them on since I installed the MEVI way back when.

 

Filled, re-drilled, port matched and polished.

 

Thanks peeps. Jshutter no driving issues?

 

BigBrain-

that looks really nice- did you do that yourself or pay to have it done? If so approx how much did that cost? I am thinking that if paying someone to modify the LIM is less than buying a tuner, that it would be the better way to go...

 

Lol that too!

 

Jshutter did you have any drivability issues?

 

Why do you have an AFPR? Boosted I assume? Or do you just tune your afr with it?

 

Left over from a project I never finished. Up the fuel to 4 bar and take the fuel back out on the SAFC (which alters the MAF voltage). Long story short is you can use an SAFC and AFPR to fool the ECU into getting a more aggressive timing map.

 

How much can you do this without knock? I am working on a map for my emanage blue. I kept the stock 4th gen LIM with my 00VI swap, a WOT run would take AFR down to 10 flat, 9s in some cases. I used the map to pull it up to 12.5ish. I am toying with swapping in the 5th gen lower to advance the timing more, but I down want to blow anything up by pulling the MAF signal down too much.

 

How is that pushing them to their limits?

 

You're right my bad......got the AF ratio backwards.

 

Ah ok. Neat little trick lol.