Search found 17 matches

by ryansmoneypit
Thu Jul 11, 2019 1:46 pm
Forum: Automotive Power Only
Topic: Ecotec 2.4 v/s 0360
Replies: 17
Views: 4555

Re: Ecotec 2.4 v/s 0360

2.2 with an EFR 6758?! that thing has to be a beast.
by ryansmoneypit
Wed Jul 10, 2019 11:31 am
Forum: Automotive Power Only
Topic: LOW TORQUE LS Engine Build
Replies: 51
Views: 10802

Re: LOW TORQUE LS Engine Build

Also, I never mentioned anything other than "HP And TQ cross at 5252". literally the only thing I wrote in the first place, regarding the current argument. I didn't bring in additional units and I certainly didn't go on a defensive rant, accusing others of "cultist" type thinking.. None of this both...
by ryansmoneypit
Tue Jul 09, 2019 10:00 am
Forum: Automotive Power Only
Topic: LOW TORQUE LS Engine Build
Replies: 51
Views: 10802

Re: LOW TORQUE LS Engine Build

I can see how it might work out different in metric, now. but the HP vs tq equation remains the same.
by ryansmoneypit
Mon Jul 08, 2019 10:31 am
Forum: Automotive Power Only
Topic: B207R Ecotec 2.0 Turbo, Looking for help with ECM
Replies: 15
Views: 4214

Re: B207R Ecotec 2.0 Turbo, Looking for help with ECM

if you are NOT real electrical savvy, then I recommend purchasing a built MS unit. its about an additional 300 bucks for a lot less headache.
by ryansmoneypit
Fri Jul 05, 2019 10:39 am
Forum: Automotive Power Only
Topic: B207R Ecotec 2.0 Turbo, Looking for help with ECM
Replies: 15
Views: 4214

Re: B207R Ecotec 2.0 Turbo, Looking for help with ECM

megasquirt 3 user here. great ecu, but the learning curve is really steep. really steep. after purchase you will also need to purchase TunerStudio and MegaLog Viewer. Tuner studio is where you tune and run diagnostic, mega log is where you evaluate engine parameters after a run, to help dial it in. ...
by ryansmoneypit
Wed Jul 03, 2019 4:45 pm
Forum: Automotive Power Only
Topic: LOW TORQUE LS Engine Build
Replies: 51
Views: 10802

Re: LOW TORQUE LS Engine Build

Interesting side note: torque and horsepower numbers always converge at 5252 RPM. Food for thought. No they don't, that only occurs when you plot Torque in Ft-lbf against Hp on the same scale. Plot them on different scales or try metric units and you can make them cross where ever you want. 5252 is...
by ryansmoneypit
Wed Jul 03, 2019 1:17 pm
Forum: Automotive Power Only
Topic: LOW TORQUE LS Engine Build
Replies: 51
Views: 10802

Re: LOW TORQUE LS Engine Build

You want a max rpm of 7k, but also want max HP at 7k too? This sounds terribad. Most of its use would then be way under the curve HP and then relying on a wimpy TQ curve. unless of course you intend to cruize at close to 7k. In that case, fuel wont last long and neither will the engine. Interesting ...
by ryansmoneypit
Wed Jun 19, 2019 1:08 pm
Forum: Automotive Power Only
Topic: LOW TORQUE LS Engine Build
Replies: 51
Views: 10802

Re: LOW TORQUE LS Engine Build

watching close here. Ive built a few race engines. lifespan is dramatically reduced with sustained high rpm. in my case( and certainly not a v8 for an airboat) we found this:

two engines, Identical build

7000 rpm rev limit = 100 hrs track time
8000 rpm rev limit = 15-20 hrs track time
by ryansmoneypit
Thu May 23, 2019 10:32 am
Forum: Airboat Tech
Topic: Twin water props on some airboats
Replies: 1
Views: 2219

Re: Twin water props on some airboats

wouldnt it just be a DC motor to a prop with a simple throttle? thinking golf cart motor...

nice thing about electric: 100% tq @ 1 rpm.
by ryansmoneypit
Tue May 21, 2019 7:25 am
Forum: Airboat Tech
Topic: power plant frame- is it safe? do they break?
Replies: 6
Views: 2802

Re: power plant frame- is it safe? do they break?

I will be running the engine speed in compliance with the recommendation of the prop manufacturer.
by ryansmoneypit
Mon May 20, 2019 4:35 pm
Forum: Airboat Tech
Topic: power plant frame- is it safe? do they break?
Replies: 6
Views: 2802

Re: power plant frame- is it safe? do they break?

excellent. Chopping down to a shorter frame mounted to a trailer, is definitely a good idea. Ill start a thread for this project as it develops.

thanks guys/girls

Ryan
by ryansmoneypit
Mon May 20, 2019 10:16 am
Forum: Airboat Tech
Topic: power plant frame- is it safe? do they break?
Replies: 6
Views: 2802

power plant frame- is it safe? do they break?

Odd airboat power plant frame question here, but first a little background.. Boat: 16x8 , not really relevant for this but whatever engine: Caddy 500, the big one, recent rebuild, mild cam (comp cam #94-000-5), aluminum intake mani( single/ dual, IDK) HEI ignition prop: whirl wind WhisperTip, 72" Di...
by ryansmoneypit
Wed May 08, 2019 12:27 pm
Forum: Automotive Power Only
Topic: Cadillac 500 turbo charging???
Replies: 16
Views: 4310

Re: Cadillac 500 turbo charging???

welp, I am about to purchase a boat with a 500, and I have a pretty good history with turbo engines. hang on guys..might feel the need. not very related, but here is a picture of my fun car. an old Mazda miata. Forged bottom end, lots up Ti up top, 20 psi boost. about 375/350 hp/tq dang it. full fai...
by ryansmoneypit
Fri May 03, 2019 1:04 pm
Forum: Automotive Power Only
Topic: Air fuel ratio for direct drive
Replies: 86
Views: 12160

Re: Air fuel ratio for direct drive

efi systems do not forecast. they work using real time info, close to it anyway. Most decent systems also use a smoothing factor to eliminate a noisy signal from the WB, smoothing out the signal and number that we see... automotive 2 sensor systems are a little different. they use a narrow band sens...
by ryansmoneypit
Wed May 01, 2019 9:33 am
Forum: Automotive Power Only
Topic: Air fuel ratio for direct drive
Replies: 86
Views: 12160

Re: Air fuel ratio for direct drive

Fuel injection systems prefer a single plane intake. Any empirical data on this or is it strictly anecdotal? seems like the dual vs single just pushes the tq band around. not sure why that would be seen differently by an injection system. I would think of it as just another tool to reach your perfo...
by ryansmoneypit
Tue Apr 30, 2019 8:10 am
Forum: Automotive Power Only
Topic: Air fuel ratio for direct drive
Replies: 86
Views: 12160

Re: Air fuel ratio for direct drive

Reading through this thread has been interesting. There is a lot of old tech and info about EFI in here. worry about computers overheating, not being waterproof, failing components. Like we all forgot that we daily drive on efi in our cars for the last 30 years..Standalone computers arent much diffe...
by ryansmoneypit
Mon Apr 29, 2019 9:22 am
Forum: Automotive Power Only
Topic: Air fuel ratio for direct drive
Replies: 86
Views: 12160

Re: Air fuel ratio for direct drive

new to airboats but not tuning engines. I have one serious question for you guys. Why are people disregarding the O2 sensor in favor of the plug read method? If I chose to read plugs vs WB o2, my turbo engines might not make it past the first boosted run. Not to mention making the whole tuning proce...

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