SykVSyx - and so it begins....

[SykVSyx]

Some of what's been going on lately,


RL Calipers

350Z Rotors

Cusco Strut Bar

Rear Fog

Rear Sidemarkers

OEM Tails

Temporary Wheels - OZ Racing Antares 18x8 +45

 

[AFAccord]

Some of what's been going on lately,


RL Calipers

350Z Rotors

OOooh pretty...

 

[RedRyder]

Nothin like a nice little pile of car goodies!

Looks like those rear tires could use some air...

 

[SykVSyx]

Yeah, I have a few other things I was going to post up some pics of.

That rear tire is shot, hence why I got a second donut to put on the front and switch the good front tire to the back.

 

[AFAccord]

I always thought it only did as much good to have the IM inlet size the same size as the piping going into it, since the IM inlet size still determines how much airflow will enter the manifold chamber. Seems like all the air going through the 4” intake would bottleneck at the inlet and disrupt the flow by creating turbulence and maybe not let as much air in. I may very well be wrong on that, but it just seems like having piping much bigger than what the inlet can allow wouldn’t do much good. I assume you’ve done your research on that though, so I hope it works out for you.

The main benefit I can see from larger piping is resonance tuning of the intake. With the right size/length of intake, the pulses of low pressure created when the valves open and draw air into the cylinder can be compounded at certain RPM to effectively create a positive pressure wave entering the plenum.

I don't think anyone here is qualified to say what's better or worse, but I personally wouldn't go overboard here with huge piping. What I can say is that smaller piping is going to be better to maintain velocity which is generally better for low RPM operation, while larger piping is going to generally be more beneficial for higher RPM operation. All this is of course dependent on lots of variables including engine displacement.

So, in discussions I have been having with Jovani, it seems that some type of custom Throttle Body Spacer will be needed to make the Q45 throttle body be able to connect with the TL Intake Manifold.

The problem is, the IM outlet is about 70mm and the TB is 90.

I'm thinking it may be a matter of overlapping and welding together the pieces of tubing, and the fabricating the mounting flanges to fit the respective ends.

No sure who is familiar with welding, maybe nsjames could chime in and share some thoughts, or anyone with welding experience.

I'm sure there's a formula out there to determine how long your transition needs to be (thickness of the spacer) to provide the optimal taper for a venturi from the 90mm TB to the 70mm plenum, but I couldn't tell you what it is. I would also speculate that one spacer probably isn't thick enough to provide the most beneficial results.

that's not always true.

decreasing the size right at the manifold will create increased velocity.

so you can get more air through a given hole by feeding it from a larger pipe with a properly designed spacer.

google "velocity stack"
popular on hot rod carbs back in the day, and still a fixture of most small engine carbs.

There are too many unknown variables in that statement. You're not going to get any more volume through the smaller hole, you're simply increasing the velocity at that point, though it will slow again as soon as it enters the larger volume of the plenum.

The other issue here is unless you can completely taper the entrance, you're doing more harm than good. That's like an F23 guy throwing an H23 manifold on because the ports are larger. The air is hitting the port wall and creating turbulence, which isn't at all effective at atomizing the fuel as it enters the combustion chamber. Having too steep of a taper at that point is going to be just as detrimental as hitting a port wall as the air enters the plenum. Compare that to the narrow F23 runners which create a true venturi effect as the air velocity increases down tapered runners then is mixed with fuel right at the point where the air/fuel charge expands into the larger volume of the combustion chamber.

I'd like to get as much air flow going through as I can.

I could go with the Blox TB, which is 76mm, but I'd like to make the larger one work, especially with the 4" CAI.

If it proves to be too much of a challenge, then I haven't wasted much money on the Q45 TB.

There has been much discussion on it on V6P, and the few member's that have done the TB upgrade have gone with the 4" tubing and gotten some good results.

Most of the TB's are already larger than the IM opening, but I haven't read anyone mention any issues with bottlenecking.

My opinion on the whole thing is that people put way too much emphasis on the throttle body size. Granted it is different between forced induction and natural aspiration, but the main benefit you're getting from a larger throttle body is response, not extra power. It's simply a quicker on/off switch to let air in.

When you get your car on the dyno and you're seeing several inches of vacuum at the TB at WOT, then you may have an intake restriction. Until then, I'm sure there are better places to focus your efforts.

 

[SykVSyx]

^Appreciate the feedback on the build, thank you.

I will probably be making some alterations, but the overall goal is the same.

Will have more pics of soon of some of the updates that have been going on.

 

[KombatVirus]

Great job man! Nice to see my tails looking clean

 

[SykVSyx]

^Have to properly mount/wire the tails up still, but that should be happening in the next couple of weeks.

Car has to be back on the road asap since I will have to start paying full coverage for it next month.

Couple of things to try and get done before it goes in for the 'transplant' is to get the brake swap/upgrade done.

Still have more to get completed in time for the W.I.M. meet in November, but there will be plenty of time to finish some things up.

 

[SykVSyx]

Ok, so I haven't posted any update pics in a awhile, but here are some of the latest acquistions

Innovative Mounts - 60a




Q45 Throttle Body


I will not be running the J37 TL intake manifold. I will be going with a Smalser Performance custom J35 Intake Manifold.

J35 Intake Manifold

Paul is going to rework the neck of the intake and make a custom throttle body adapter/spacer so I can run the Q45 Throttle Body.

Until that is done, I will be running the stock J35 IM and TB.

Thought I would throw in a couple of pics of potential projects I have in the works as well.

'02 Coupe Bumper w/ modded '02 Xenon Lip


Obviously it's not done in the pics, I was just trying to get an idea of what it might look like.

Not sure if I will go with a 98-00 Xenon lip, as it might require less work to make it fit.

Custom Eyelids
Left Side


Right side


Those need to get painted. I have a similar CF set, that I could use as well, just not sure which I prefer right now.

Better shot of the OEM tails and rear sidemarker
Right Rear


Right Side


Left Rear with Rear Fog


Left Side


Yes, that tire is shot and is trash......I know.

How it looks right now, dust and all.


We've all seen blank rotors and brake pads, so I didn't bother post pics of the Honda Pilot rear rotors or the RL pads.

Here are the Smalser Performance Custom Brackets for the RL/350Z front BBK and the Honda Pilot rear rotor upgrade.

Will post side by side and before/after pics when the brake work gets done, hopefully later this week.

I still have to pick up the 02 Coupe hood from a local member, and although you can't tell in the pictures, that Coupe bumper is going to have a set of Intersection Lights and CF4 fog lights as well.

Stay Tuned.

 

[KombatVirus]

Weird the taillights seem to be missaligned, or is that just me