1990 tg 38
 

What is the max safe hull speed? It's a heavy layup

Old School could at least tell you how stable his was back when he had his big engines in it.

What size engines are you planning on running?

ZZ572R'S ported

Wonder what the cost would be to step the hull
Can you ask old-school l can't reach him
Blowers l guess if it needs it,it should do 115-130
A 90 velocity does 113

And the correct speedmasters

Keep in mind the Velocity (great boat too) is an entirely different boat. I had a 1994 TG with 1300 HP and #3A SSM's, it topped out at 80 MPH. You'll need BIG power to get it in the upper 90's. To have the hull stepped will be a costly proposition.

Well First Off You Cant "Step" The Hull You Would Have To Buy A "Stepped Hull" Which Would Be A Late 2000 And Newer Hull.....So I would Say To "Step " The Hull Would Set You Back To A Min Of 125k
Second You Are Dreaming Or Smoking If You Think By Adding Blowers To A Pair Of 572's Your Going To Do 115-130 Which By The Way Is A Huge Gap...
Third Velocity Is Crap.....lol
Fourth Do Some Home Work.......
And As For Your First Post....All Depends How Big Your Balls Are.....!!!

Some T-55's might push a straight bottom gun to 115-130.

Play nice!
 

Sorry, you are incorrect sir, you can step a hull; Jeff Haylett did it on a non-stepped Fountain and made a VERY successful race boat. There is a recent thread on stepping conventional hulls.

The guy is looking for info, let's try to help him out.

its difficult to get a 1990 gun into the mid 90s. From my knowledge they handle well to just under 100mph.

Gota be faster than that hef has 2001 38 maybe l can get it off him for somesort of service

See post # 10.

You're not going 130 unless you rotate the face of the speedometer counterclockwise about 90 degrees.

a 2001 is a step bottom.

Why are you arguing with people that OWN the boats and have run the power in them?

Facts are Facts - flat bottom Cigs from the 90's just aren't that fast.

mine has 750's a side and runs low-mid 80's
my friend has 1000's in his and hits the c note
both straight bottom kevlar boats
tanks in the water but MAN do they ride nice!!!!

I disagree with you as ours and Craig's (Oldschool) are well above 100mph and it handles GREAT. It's all about the setup.

Dat dar is funny!!!!
Talking about Seafordguys turning the speedo 90 degrees!
My 2 cents......if you want to see triple digits, just buy a stepped TG and be done with it. Otherwise, you will spend 100 grand on engines that will need rebuilding every year or two.

130 mph........bwahahahaha!.....omg!

It will still take about 750hp to see 100mph in a T/S Gun. Check this site out this calculator is pretty accurate.
Speed Calculator

If the hull is Kevlar, side by side configuration, and full cabin it will take at least 1100 HP X 2 to break 100mph in the real world. That is also with #6 drives mounted very high. If it is a standard fiberglass hull, it's going to be almost impossible. The limited staggered, Kevlar hulls, with half and/or no cabins will break 100 with a little less HP.
130mph in a straight bottom 90's Cig is unheard of.......

in a TS maybe...Not in a straight hull.

Hey wait a minute...when I bought yours you said it did 100 :stooges:

SOLD!!!!!!:whistle::whistle::lolhit:

Yeah I guess I chose not to hear the "behind my 3500 Dually falling off a cliff" part :lolhit: