Any Direct Port TB's out there?

[TARZAN]

Well, I've put my GN down for a couple months. Right now its getting some fiberglass pieces and a fresh coat of paint. Gonna freshen up some suspension bushings and do some tweaking under the car while I'm there. I also want to clean up my nitrous kit while I'm at it.

I currently have a single nozzle NOS kit, its worked well so far, but I realize that TB's have a rep. for not distributing quite as well as they should . I want to make sure I don't have this issue with my N2O, especially since I've stepped up the shot.

Anybody out there running a direct port? Any pics or advice?

Thanks,

-Will

 

[Grumpy]

Anybody out there running a direct port? Any pics or advice?

Thanks,

-Will

like as in the 6 nozzles located in the plenum ?? NOS had it YEARS ago 1986/87.. "cool" factor was a 10.. performance factor a 2 the one nozzle in the tube worked better. ahhhh the OLD days

 

[TARZAN]

like as in the 6 nozzles located in the plenum ?? NOS had it YEARS ago 1986/87.. "cool" factor was a 10.. performance factor a 2 the one nozzle in the tube worked better. ahhhh the OLD days

Eh, I know setup you're talking about....and its not exactly what I'm talking about. I could care less about the "cool" factor, if I did I wouldn't run N2O beause most of the TB guys hate it lol...

I'm talking about a TRUE direct port, one nozzle plumbed into each runner dispersing the exact same amount of nitrous and fuel into each combustion chamber everytime. Its not some pre-made kit I'll buy, it something I'll have to put together. I just wanted to see if anybody else had any pics or insight before I dive in

-Will

 

[wilkinshc]

Well, I've put my GN down for a couple months. Right now its getting some fiberglass pieces and a fresh coat of paint. Gonna freshen up some suspension bushings and do some tweaking under the car while I'm there. I also want to clean up my nitrous kit while I'm at it.

I currently have a single nozzle NOS kit, its worked well so far, but I realize that TB's have a rep. for not distributing quite as well as they should . I want to make sure I don't have this issue with my N2O, especially since I've stepped up the shot.

Anybody out there running a direct port? Any pics or advice?

Thanks,

-Will

I have used the 6-pack setup and was quite happy with it. I was able to run the rear foggers a little richer to even up the distribution. Otherwise I would just remove the intake and have a machine shop plumb it for foggers. It would be tight when you install the fuel injectors and fuel rail. So I would install the injectors and rail so the machine shop can see what room they have to work with.



Chuck

 

[TARZAN]

If done, the intake/rails/etc...will be in tact when everything is plumbed.

I was hoping somebody had pics of their setup lol, maybe not. At least it'll be an adventure.

-Will

 

[wilkinshc]

I was hoping somebody had pics of their setup lol, maybe not. At least it'll be an adventure.

-Will

Not sure what you mean?

Here's a link of Donnie Wang's direct port.
v3.1.5


The pic above show's the foggers installed, if you need I can get pics with the plumbing installed.

 

[Alky V6]

A port nitrous injection system is a tight fit on the Buicks, but with some ingenuity, it can be done. And once you have it, you don't have to worry about distribution problems. My particular manifold design forced me to design and make my own port injection nozzles. I also made a radial distribution manifold to further assure equal distribution. If you bother to design your own port system, might as well make it large enough so you can deliver some big numbers if the need arises. My system can deliver up to 450hp if required. I'm presently working my way up from a 245 shot. The plan is to not to have to go over a 325 shot at the moment to get a new 91 turbo to spool.

Good luck. Good to see someone else discovering the benefits of nitrous.

 

[TARZAN]

I've ran a single nozzle on the car for awhile, but I feel as though there is something to be gained from a direct port, even if its simply in the distribution. Reading my plugs after some passes its obvious that some run a bit more lean that others. I had the injectors cleaned/flowed, so they're not the issue. I'm going with "neat" N2O setups on my other two vehicles, might as well go for the trio.

Don, realistically with the nozzles I plan to use acompanied with the large noids from Harris Speed Works (whom I prefer to use) I should be good for about a 300. Plenty for anything my lil stock 109 is gonna consider

I have a dedicated fuel cell strictly for N2O in my Tran Am, I'm considering putting something similar together for my Buick. I also intend to play with the fuel jetting in the back cylinders to see what might be gained. I wish I had a wideband in each primary, but thats just not feasible where I'm at right now.

Its gonna be a couple months, goal is to have this on the car and just beginning tuning next Spring. I'm working on some specs for a custom grind cam to take full advantage of the N2O+boost.

-Will

 

[GNVYUS 1]

Direct port Nitrous vs Alky is different IMO in it's effectiveness. Nitrous makes more sense as direct port, not alky.

You'd want to cool the whole charge and give it time to dissipate the alky. Direct port doesn't give you that much time to dissipate the charge and from the nozzle sizes I've seen from those who do it, it's less volume in total cooling down the charge.

You're better off running E85 since it's having a similar effect as direct port alky.

 

[Alky V6]

Direct port Nitrous vs Alky is different IMO in it's effectiveness. Nitrous makes more sense as direct port, not alky.

You'd want to cool the whole charge and give it time to dissipate the alky. Direct port doesn't give you that much time to dissipate the charge and from the nozzle sizes I've seen from those who do it, it's less volume in total cooling down the charge.

You're better off running E85 since it's having a similar effect as direct port alky.

The whole charge has to go through the intake ports, so a direct port alky system is cooling the whole charge.

On a gasoline engine, the job of a methanol injection system is to cool the intake charge and lower combustion temperatures to avoid detonation. The cooling can happen in the uppipe, the plenum, the intake runner, and even in the cylinder during the compression stroke, all the way up to the point of ignition. The primary point of the alcohol injection as a coolant is to lower combustion temperatures and avoid detonation of the gasoline.

If what you mean by dissipation is vaporization, in a gasoline engine there is plenty of heat to vaporize methanol before the ignition spark. Especially if the amount of methanol being injected is relatively small.

 

[ttypewe4jim]

could always do this also

 

[Alky V6]

Now why would you want to hide your nos system. Oh. TSM, TSO, etc. Class racing at its best.:biggrin:

 

[ttypewe4jim]

former street / no time car

nah its just a little turbo street car that has a addicition to the blue bottle.... diffently not a nhra legal car lol

 

[TARZAN]

Thanks for that.....not a bad idea. Something I could do myself also

Not sure where Alky came into the discussion, because thats not what I was looking for. I'd prefer to use Alky through a single nozzle. I'd want to make sure that the IAT noticed it.

-Will

 

[Alky V6]

Thanks for that.....not a bad idea. Something I could do myself also

Not sure where Alky came into the discussion, because thats not what I was looking for. I'd prefer to use Alky through a single nozzle. I'd want to make sure that the IAT noticed it.

-Will

Be careful that the IAT sensor doesn't get wet with liquid methanol. That will cause an inaccurate reading due to the latent heat of vaporization occurring directly on the sensor. An accurate reading would be had after all the liquid methanol had vaporized by the time it reached the sensor.

 

[TARZAN]

Be careful that the IAT sensor doesn't get wet with liquid methanol. That will cause an inaccurate reading due to the latent heat of vaporization occurring directly on the sensor. An accurate reading would be had after all the liquid methanol had vaporized by the time it reached the sensor.

Hence the need to locate the sensor in the back of the plenum, and have the nozzle at least a foot or so in front of the TB


Personally, I just run 110+, but people do some amazing things with Alky, no doubt

-Will