24ft Baja

I have a 91 BAJA that i have done some work to and wont to go faster It is 468 BBC with 11-1 pistons performer RPM heads and intake with 750 DB pumper and a holley 110 mec fuel pump crane compucam hyd roller with roller rockers the cam is I=621 E=635 lift adv duration is I=300 E=308 @050 I=236 E=244 with wet headers i just put on msd but have not tried it is there a big dif in that and the stock IGN ? and is my carb to small it has a 25 pitch pro that has pushed it to 75mph on GPS at 5500 rpm what do you think and do you have any ideas Thanks

24ft Baja

Is that preaty good for that boat what do you think?

JaayTeee

Baja made 2 24 ft. models that year,
one was the bandit, the other one
was the 240 ( they used to call it the 226.)

I had a 91' bandit ( the smaller of the
2 24 footers) that ran low 70's with
a 502 mag, upgraded it to the equivelant
of a HP465, it would run mid 70's

I'm guessing your making around
450 hp. by the comparison.

jt

blown1500

Carb is about right. What gas are you using?????

24ft Baja

moble 93

blown1500

Do you know your compression ratio and timing????
I think you may have a big problem.

24ft Baja

It is 11 to 1 and i run it around 34

24ft Baja

Well did some testing last night gps out at 76.4 best to date preaty happy but want more i think i need more prop it was turning 5800 rpms i just had my prop balanced and fixed polished 25 14.25 3 blade what other props should i tri? i have a 27 13.25 4 blade i can tri will that be close or what please help thanks

Dork

1.65 gear ratio for the drive??

Dennis Moore

I assume that you had the rectangle port heads and switched over to smaller oval port Edelbrock heads. Not much of an increase in power there (but some!). The Edelbrock intake manifold is not much better than the Chevy aluminum intake manifold (maybe two or three horsepower better). The increased compression was probably good for 10 or 15 horsepower. The camshaft is too big for a 454 but you might have picked up 10 or 15 horsepower over the stock camshaft at 5,800 rpm. No noticable horsepower increase will come from the MSD at 5,800 rpm (only a slight 3-5 horsepower increase from a CD will come at 5,500 rpm and higher). I would guess your engine is making about 400 horsepower at 5,800 rpm. Not bad, but a smaller camshaft would really wake it up if it weren't for that high compression ratio. The big camshaft is probably cutting down the cranking compression just low enough to keep it from detonating on pump gas. A smaller camshaft would make the engine detonate. Test the cranking compression, if it is over 190 you are in trouble with detonation. You should reset the total timing advance to 32 or 30 to see if you go any faster. Make sure you are running a cold plug. An AC R42TS should work ok.
Good Luck
Sincerely
Dennis Moore