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SilverBack
12-07-2008, 10:33 PM
Here is my 502. They are doing some cleaning up and putting my IMCO valve covers and oil pan on now but I thought that I would post the dyno video for those not following my 25 ZX thread.

BlownCrewCab
12-08-2008, 05:27 PM
Wow Keith, those are big numbers. Is he done with the tune? I Thought on Blown motors the full throttle A/F Ratio should be below 12.0. (I'm not a tuner, and don't claim to be) On all the preformance automotive sites I go to and in Books I have the Blown target (full load) A/F is 11.8-11.5, the 12's your getting seem to be N/A numbers Not FI. If Mark is happy with it and it'll live then it will be a crispier running motor,but I thought it was a bit lean. Hedge or Tex....What do you guys get for A/F #'s????????

SilverBack
12-08-2008, 05:52 PM
Thanks Michael. I haven't talked to him but I am sure that he has it where he wants it. I have never heard a bad word about his engines living. With that being said ....DWM has put this engine through hell already. I think it also may depend on charge air temps. I think on a roots blower that you may be right about the 11:1 thing. I will talk to him tomorrow and get his take on it.

cutwater
12-08-2008, 06:19 PM
Nice work. That thing pulls especially hard from 4300-5300.

EDIT: graph fixed

SilverBack
12-08-2008, 07:18 PM
Nice work. That thing pulls especially hard from 4300-5300.

Thanks Cutwater!! That graph is great!! I think the HP and Torque are reversed though.

The Hedgehog
12-08-2008, 09:04 PM
Wow Keith, those are big numbers. Is he done with the tune? I Thought on Blown motors the full throttle A/F Ratio should be below 12.0. (I'm not a tuner, and don't claim to be) On all the preformance automotive sites I go to and in Books I have the Blown target (full load) A/F is 11.8-11.5, the 12's your getting seem to be N/A numbers Not FI. If Mark is happy with it and it'll live then it will be a crispier running motor,but I thought it was a bit lean. Hedge or Tex....What do you guys get for A/F #'s????????

I would have to pull my dyno sheets and am on the road. I will do it when I get back. Eddie ran mine about 0.5 to the lean side since we did not use wet pipes.

I am in the same boat as Keith and Tex on the final number. Eddie warranteed my engine so I did whatever he said. Eddie builds some of the biggest / most reliable marine packages around and has never had one melt down. He says that Marc is one of the best tuners in the country so that is all I need to know.

cutwater
12-09-2008, 09:20 AM
Thanks Cutwater!! That graph is great!! I think the HP and Torque are reversed though.

Arrgh... You're right, fixed it.

SilverBack
12-09-2008, 05:45 PM
Here are some picture from today.

The Hedgehog
12-09-2008, 05:58 PM
I think that you should get a custom decal made up that says SWAMP RAT 502!

SilverBack
12-09-2008, 06:10 PM
I don't even want to tell you how much power the engine made after they found out that the engine had the wrong dipstick and dip stick tube and they drained the oil to do an oil change before they put the motor back in the boat and found that the engine had 5 gallons of oil in it.

SilverBack
12-09-2008, 08:03 PM
They had to do some modifications to my Procharger screen also.

BlownCrewCab
12-09-2008, 08:57 PM
I think that you should get a custom decal made up that says SWAMP RAT 502!


Tell me how big and what color and I'll hook him up.....I have a Vinyl Plotter in the back Den. I have the Basic colors, Red, Black, White, Blue, Orange, Chrome, Gold, and probably others.. I'll Hook Keith up No Problem...

The Hedgehog
12-09-2008, 09:04 PM
Tell me how big and what color and I'll hook him up.....I have a Vinyl Plotter in the back Den. I have the Basic colors, Red, Black, White, Blue, Orange, Chrome, Gold, and probably others.. I'll Hook Keith up No Problem...

You have to do this Keith!

How about a big DONZI for the ole hatch ram. I would want one of those!

SilverBack
12-09-2008, 09:09 PM
OK..I need a big RAT with a crazy grin on his face or something. Or maybe a big sack hanging:shocking:. I think SWAMP RAT 850 SCI sounds better. I will have to get the top of the 500 efi intake measured. I wish that I would have done it today!!

SilverBack
12-09-2008, 09:18 PM
If the rat doesn't work out we can get a big close up of Cal-Man..Maybe dress him up like Emeril saying --BAM!!!!!...850 swamp rat roux!!!!

The Hedgehog
12-09-2008, 09:36 PM
If the rat doesn't work out we can get a big close up of Cal-Man..Maybe dress him up like Emeril saying --BAM!!!!!...850 swamp rat roux!!!!

That is pretty good. You kill me Keith. Good/bad....things are definately more entertaining when you are tuned in. Thats good.

Now back to the swim platform and open bow!:wink:

BUIZILLA
12-09-2008, 09:42 PM
what is that car customizer rat decal thingy? can't place the name right now.... damm

SilverBack
12-09-2008, 09:48 PM
That is pretty good. You kill me Keith. Good/bad....things are definately more entertaining when you are tuned in. Thats good.

Now back to the swim platform and open bow!:wink:


All I can tell you and Tex is watch out at AOTH!! You are going to get a chance to smell what THE Cal-Man is cooking!!!:eek:

:pimp::pimp:

zelatore
12-09-2008, 10:11 PM
what is that car customizer rat decal thingy? can't place the name right now.... damm

Rat Fink. - I know you know Rat Fink! Done by Ed 'Big Daddy' Roth.

http://www.bigdaddyroth.com/

SilverBack
12-09-2008, 10:32 PM
I found a few more.

onesubdrvr
12-09-2008, 10:48 PM
How 'bout something like this?

The Hedgehog
12-10-2008, 06:45 AM
Getting there. It needs to be able to go on the rectaugular spot where the 500 EFI was located.

I bet that Keith can get those dimensions

SilverBack
12-10-2008, 06:59 AM
That is pretty good Wayne. I was thinking something a little wilder though. I kind of like the Rat Fink and Rat and crossbones. It is going to have to be called a "SWAMP RAT 850" SCI though.

I will call New Orleans and get them to measure the top of the intake today.

onesubdrvr
12-10-2008, 07:46 AM
That is pretty good Wayne. I was thinking something a little wilder though. I kind of like the Rat Fink and Rat and crossbones. It is going to have to be called a "SWAMP RAT 850" SCI though.

I will call New Orleans and get them to measure the top of the intake today.
Sounds good ;)

Wayne

onesubdrvr
12-10-2008, 05:11 PM
here's one in them wham-o-dyne rectytangular tingies ;)

Wayne

SilverBack
12-10-2008, 08:07 PM
That looks a lot more like it Wayne. Great Job!!

The Hedgehog
12-10-2008, 08:41 PM
I am really starting to like it!

CHACHI
12-10-2008, 08:49 PM
Swamp Rat was also the name of Don Garlits dragsters, you are in good company.

Ken

SilverBack
12-10-2008, 08:53 PM
Swamp Rat was also the name of Don Garlits dragsters, you are in good company.

Ken

I know...I love Big Daddy's dragsters!!!

Last Real Texan
12-14-2008, 08:47 AM
All I can tell you and Tex is watch out at AOTH!! You are going to get a chance to smell what THE Cal-Man is cooking!!!:eek:

:pimp::pimp:
You have to show up first....:bonk:

Tex

The Hedgehog
12-14-2008, 08:58 AM
You have to show up first....:bonk:
Tex

Yes, sir! I am getting ready to walk over to the Blue Moon for brunch and bloodys. Hit Hennans last night. You really need to get up here again. I miss boating with someone that can actually help out.

SilverBack
12-14-2008, 11:43 AM
You have to show up first....:bonk:

Tex


You are right!! I am not sure if I am coming anymore. Maybe I can catch up with you and Bill sometime. I can't wait to see what a 1100 HP 27 ZX can do!!