I have always loved the GTR Prototype rear. For the production GTR, Nissan removed the twin diffuser fins and little red LED brake light:



Those items were my favorite parts. Soooooo, I tried to create a GTR Proto for our car as a lip kit, but failed. I installed my mesh and Im pleased with the way it turned out. Then , I thought, why not add the twin diffuser fins and LED under the mesh?

Here is a teaser pic taken with cell phone:

The LED container is in place(if u look carefully) but I need to solder red LEDs together.
I should be done tonight. Opinions so far?

 

i dont really see it, guess ill have to wait for the big pics tonight!


Always original deus!

 

The twin diffusers are there, but the LED lights are in a black housing and really hard to see right now. Ill probably put a red lense on it, even though I dont need to. I wont have the lights hooked up since the place I get my electronics from is closed already . . . grrrrr.

 

Looks good in the pics. You"ve got some skills.

 

More pics, as promised:






The light will go in a bit later.

 

That is freaking hideous... If you are going to do something close to the prototype diffuser, at least dont just stick some thin metal looking thing on the bottom of the bumper. The GT-R has a rear lip to help it flow better. The titanic rudder you put on is just so out of place. I really respect your DIY-ness and being different from other 6th gen and whatnot , but stuff like this is ricing it up.

 

sorry man, not feeling it.

 

thats some paint job you got on the car... i personally think the prototype GTR is better... i was really looking forward for the CF looking accent under the headlights, but nice non the less, BTW nice addition

 

it will help you steer the car when crossing large puddles.

 

Miss the way your car looked back in the day..

 

I would extend them into the rear further and not just cut them off like that, and make them a little bit smaller

 

they can't be the lowest point. you gotta make them flush with something. plans to wrap around your pipes like the gtr?

otherwise i would think 4 spread out ones not as low would look better.

keep up the great work!

 

Really need to see a straight on shot from about 20' away to form an opinion. Your straight on shot is way too close-up.

Take the same shot sitting down too.

 

looks like a trailer hitch

 

i always thought your car was one of the best on this site..but i duno man, that rear end is starting to get a bit ricyyy...maybe not ricy, but a bit to busy?

 

I think I will shorten them. That should improve the appearance. If it doesnt, its very easy to remove. By the way, I made the fins out of ABS plastic.

 

not digging the "diffuser" at all, you shouldnt have painted the mesh black

 

The diffuser doesnt look too good but the mesh part isn't bad. Take the fins off and keep the mesh.

 

I liked when you first put the mesh in before it was black. But the fins don't add anything to your car at all. And the bumper looks like it could use a buff.

 

I think I can make it look better if I make a fiberglass version of the fins and undertray. I can thicken the fins and shorten them and I think that will look better. I installed the fins as they are now to see what it would look like. I still like the idea but I think it needs some tweaking. Making it out of fiberglass and allow me to better shape the fins so they look better. In the end if it doesnt look right, I can always remove the tray and fins with 3 bolts. This is by no means permanent.

 

More pics with a bit better lighting:

 

Actual pics of the undertray and fins.




The tray smooths out the airflow between the spare tire area and the bumper (theoretically). Any air "caught" at the bumper is vented out through teh mesh (theoretically).

 

hey I'm also a big fan of your car and I think your body and suspension work and looks plus chern's engine would be the best maxima ever but not really feeling the painted mesh grille and the diffuser.
If your car is mine I would get an 07 rear bumper and put carbon fiber vinyl over the black part near the exhaust. But that's my opinion. Can't wait to see what you will be doing next.

 

I removed the fins and am giving it thought as to what would look best. I looked at other pics of the GTR Proto and the fins are more tucked in than I thought.

 

maybe angle the edge of the fins to continue the direction of the bumper instead of straight down.

 

Agreed. I also cut down the underneath part. Just lookin for ideas right now.

 

Hey man very nice! I love the way that looks.

 

Dude, the rear is starting to look too busy, but I've seen your excellent work before and will weigh in once you say you're finished with this project...

 

i was bored so i messed with paint and made these

 

Now thats what I like . . someone who is bringing ideas to the table and brainstorming.

 

I think this is what Im gonna shoot for:

 

deus just wait for this, you know I got you covered,
(its late and im to lazy to do a good shop

 

Maybe ur right MAX2DAMAX . . .

 

Best looking. With no bottom on the diffuser it never looked right. I think the length of the fin was the throw off. Also, making them wider and more rounded like wrc diffusers would look nicer. Hey man props for you taking the time to a) make it and b) trying something new.

 

If I had a 6th gen I'd buy that.

 

Ok, I took a giant step for me and started a homemade fiberglass undertray. I then plan to attach twin diffuser fins after the tray is started and if it works out. Its really messy work but it may work. I first several layers are baking in the sun to dry. Ill try to get the next layers done today after I make some fins.

Here are the supplies. The tray in this first pic was the original plastic one that I decided not to use since I re designed it based on your opinions.



In the second picture, you can see it baking in the sun to dry. This is the re designed tray that will hold the fins. It will look more like the GTR Proto since it will have a thicker border under the mesh area of the bumper. The fins will be the same thickness theoretically.

 

And then again.............. maybe not lol
Can't stop a man on a mission

 

With the newly added zoomed out pics, I don't think your original idea is all that bad. A little shorter like you said and maybe a little wider apart would be best IMO.

Although now it looks like you have a new endeavor on your hands.......

FWIW, I like the mesh painted black the best. No RED trim though, ok?

 

I dont think ill go with red trim on the mesh. I like the mesh the way it is. .. .for now.

As far as the GTR Proto fins, I am limited in the distance between the fins by my red LED container. Ill try to get them as wide as I can. I am also making them smaller and angled frontward rather than rearward or straightdown. I determined this after more examination of the GTR Proto rear taken from different angles. It will make the fins less obtrusive and more pleasant to look at, IMHO.

Here is the tray after a bit of trimming:


I still have more layers to put on and I want to make an nice thick edge to go under the mesh grill. The edge should be the same thickness and the fins. Right now its a rough shape.

By the way, the fins are a B!tch to make. I formed them out of foam, but fiberglass is hard to do on little parts like that. I think i have to do one side at a time, trim it, and then resin the edges.

 

Starting to look good. I used some wood to form a lip which will fit right under the rear grill. I need to glass over the wood to thicken the lip up some. Then I will blend in two diffuser fins and mold in the little red LED brake light in between