moneyman380

Alright I know I'm going to take some heat on this one, but I want to know if it's even possible. I have multiple NOS brand tpi plates and I know they are only good for around a 200hp shot each. So I'm wondering if I can or even should double stack them behind my throttle body so I can run a two stage setup. I know I'm going to have to fab up a new throttle cable mounting bracket and have issues with the snorkel. I'm running a superram and I have debated drilling holes in the plenum for a direct port nitrous fogger setup because of the value of the intake. I have all the parts to go either way, just looking for some opinions.

DIGGLER

iTrader: (1)

you COULD stack 2 plates on there if you can make the throttlebody work that way.... but even a 200 shot is serious business, and your 700r4 will be sketchy at that point. if you've never used nitrous before, a 200 shot will feel like the space shuttle is strapped to the roof. engine will need decent parts and a good tune with the right amount of timing pulled.

no new tires

THIS

sht starts to get real at shots 200+...

moneyman380

The motor was built specifically for nitrous. Forged pistons, rods, crank etc.... Transmission has been rebuilt with all the upgraded parts to support the extra power.

project89

iTrader: (1)

if u want to do it right take one of the tpi plates to a machine shop , and have them machine u a new plate tapped for 2 single nozzles out of aluminum

i would not stack 2 plates ontop of each other , and the single plate with 2 nozzles means u dont have to worry about tv or throttle cable etc

something like this




or add nozzle(s) to one of the plates u currently have, stage1 would be the plate and second stage could be 1 or 2 nozzles depending on how u decide to do it

DIGGLER

iTrader: (1)

Fwiw, people have been stacking cheater plates for years. The bars don't spray straight down, so there is no obstruction. Problem with a tpi/lt1 plate is the limited space to put the holes in the spraybars. (Only 2 52mm holes). My car picked up over a full second in the 1/8 with a 100 shot. 7.2 n/a, 6.10 with the 100 shot. I like the bars and nozzles in the top of the plate. Might be how I would do it.

project89

iTrader: (1)

even though theres no disturbance by stacking the plates wouldnt a plate with bars and nozzles be less of a hassle when it comes to throttle cable/tv cable etc

DIGGLER

iTrader: (1)

One plate would be simpler, for sure. another issue is distribution won't be the best with that intake. Will need to stay on your toes with the tuning.

83 Crossfire TA

iTrader: (2)

Is there an advantage to mounting them in a plate/behind the throttle body?

I don't really see the advantage of mounting nozzles in the plate, why not just mount it/them in the ducting in front of the TB? Typically the further forward you mount them the better your distribution will be (unless you do port injection down by the heads), and further forward softens the hit a little making traction slightly less of an issue.

DIGGLER

iTrader: (1)

I have a bbk throttlebody that is drilled for 2 nozzles if anyone is interested....

project89

iTrader: (1)

haha not me i already have a direct port kit which i will probably never use for my twin turbo car

Rice01

has any one considered putting nozzles into each of the runners making a sort of direct port setup? what would you need? would the nozzles impede more airflow than they are worth? only thinking of running a small shot 75-100 but want something with better distribution than the TB plate while keeping the stock intake

SixSeriesCSi

iTrader: (11)

I have a Direct Port LTR Setup. It requires specific nozzles due to the angle of entry. I don't know how much they impede airflow.

SixSeriesCSi

iTrader: (11)

I started a thread where inquired as to the dimensions of the NOS TPI plate, did you take those measurements yourself?

I'd like to see it.

NufNuffZ28

iTrader: (10)

I agree with drilling 1 plate for two nozzles.

The distribution of those old NOS plates was not very good.

With the same jetting going from a NOS TPI plate to a NX nozzle we picked up 4/10 in the 1/8....

DIGGLER

iTrader: (1)

With same noids? How fast was the car?

NufNuffZ28

iTrader: (10)

Oh yeah. swapped to nx noids and a nozzle.

slow all stock L98....

Ran 8.4's...then 8.0s