Thread:

nozzel insert info need schooling

what size nozzle insert is in it now?? also, where do you run the boat?? like, what state???

Originally Posted by bp298

steve, i thought you went over to the dark side???. i should be doing some testing very soon. either next week or the week after. 4/21 is the boat show. i'm supposed to take the thing over for that, so may not test until after the show. scott and tom like castle rock for testing, so may be going there. goal is to make the race may 5/6. can't wait...

Testing what? The SWTD? Or?

Originally Posted by bp298

what size nozzle insert is in it now?? also, where do you run the boat?? like, what state???

Bob...What size insert do Ya run in AZ ?

Originally Posted by PCE680

Bob...What size insert do Ya run in AZ ?

not the same that i run in texas, arkansas or kentucky...

Originally Posted by cs19

Testing what? The SWTD? Or?

Originally Posted by cyclone

Bobs got a new.......

five more days. i'll post everything.

Originally Posted by yardsale_03

i run the boat in ca an no nozzel insert

this is just a suggestion. find someone that can bore the nozzle for ftn inserts. if they've never done it, find someone that has done it. if you pull the nozzle off yourself, shouldn't cost much.

with an 80 mph boat, i'd start with a 3.05. if you can't get one, then a 3.0625. but i'd start with a 3.05, test a lot, then go with a .06, .07, .08. for an 80 mph boat, a 3.125 is just going to be larger than anything you'd want. if you stick solely with ftn's, a 3.0625 (teal) will give you the best results.

Originally Posted by ICECREAMAN

So what kind of change could you expect between 3.05 and 3.10 on a lake hot rod? Is .050 going to make a lot of difference? I'm sure on the clocks it could be measurable, but is it noticeable on a boat blasting up and down the river?

Depending on the size/weight of the boat > I'll say you're splitting hairs and won't notice a thing.

So is it worth the effort to mess with nozzle inserts if your not racing or running against a clock?

No, ONLY if you want your boat to perform its best for yor given HP.

Duane HTP

Originally Posted by DuaneHTP

No, ONLY if you want your boat to perform its best for yor given HP.

Duane HTP

pretty much...

Originally Posted by HammerDown

Depending on the size/weight of the boat > I'll say you're splitting hairs and won't notice a thing.

could you describe the testing you've done to validate this? or is this an assumption on your part???

Originally Posted by ICECREAMAN

So what kind of change could you expect between 3.05 and 3.10 on a lake hot rod? Is .050 going to make a lot of difference? I'm sure on the clocks it could be measurable, but is it noticeable on a boat blasting up and down the river?

with respect to the op's boat, he would be going from a stock nozzle to nozzle with a defined exit diameter. i don't know about "seeing" a difference, because there are no clocks on rivers or lakes. but most definately, he will feel a difference.

although it's been on the track, i've tested well over 40 inserts of varying diameters and designs with a fairly consistent repeatable boat. from 2.76" diameter to 3.225" diameter. believe it or not, you can learn a couple things doing crazy shit like that.

.050 can certainly make a difference. there are a few board members that i've made..."suggestions" to, that only run on the river. all i really asked for feedback was how the thing felt. and they all said they could "feel" the difference.

please don't take this negatively, but the op asked a question. all i'm doing is answering it based on what i know as fact. i realize there are a lot of people out there that are pefectly happy with stock nozzles, with no interest in trying to gain performance this way. and that's perfectly ok. then there are others out there that really have no knowledge whatsoever, but feel the need to voice disbelief or discount it entirely. that's ok too, but it comes from no factual basis. there are also people that will believe setting a pump back makes no difference, blueprinting a pump makes no difference, having a shoe/rideplate makes no difference. not being facetious, i've seen it all posted at one time or another.

I would run the teal insert. .010 changes to the ID of the insert is very fine tuning IMO. You can get your setup close with a teal I'm sure..