Engine Dyno/Tune in Midwest
 

My new engine is almost done. I am adding almost 100ci and 200hp over my original 454 mag. I am wondering if there is someone trustworthy nearby where i can get the new engine tuned before i put it in the boat. Mark at Precision Marine will be doing the initial calibration on the ECU, and i am sure it will be close, but i would like to have it dialed in perfectly if possible. As much as i would like to take it down to Louisiana, and have Mark do it, I just don"t think it is in the cards right now. I am sure he is busy beyond belief and it is just too far. I am in Southern Indiana near Evansville. 2 hrs W of Louisville, KY 3hrs E of St Louis and 2 hrs N of KY Lake.
If anyone has any recommendations, please let me know.

Thanks in advance

How about eddie young at young performance marine?

Also, how do you get 100 more cubic inches out of a 454 block?

Tyler Crocket in Ruby, MI is worth the drive. He could dial it in in the boat or on the dyno...in the boat is generally best.

New 540. Where is he located?

Nashville.

10 hr drive each way. I sure would like to find someone closer

A buddy of mine sent his to Mark at Precision after he didn't have much luck locally. My buddy is from northern IL.

Nashville is certainly close enough and i have heard nothing but good things about Eddie Young. I will check it out. Thanks

I live in Newburgh and Eddie's Shop is about 2.5 hours if you go to Bowling Green, KY and pick up I-65 South, He's good and has always treated me fairly on the work he has done.

Brad Smith Joplin MO

Thanks for the recommendation everyone.

Snap,
I would be more than happy to tune your engine. Mark is a great guy who really knows how to tune a mefi. I'm sure he will give you a cal that is very close. Since the cal should be really close, we could just tune it in the boat, unless you want to dyno it. That is the best way to go. However, I would like to also check it once it is in the boat to be sure everything is perfect. We are also capable of installing the engine, or anything else you may need.
Give me a shout if I can help or if you just have any questions. Thanks
Eddie

Does anyone have the #/info for Brad Smith?

(417) 499-7855

I own a truck repair shop, so installing the engine should be no issue. I will probably go ahead and install it and if it needs some fine tuning i will drag the whole rig down there.

Thanks

Anytime. Give me a shout if you need anything.
Eddie

Eddie, I do have a question. A couple of times, I have had what I think was a vapor lock issue. After running hard and sitting for an hour, the engine would start and then die. Had to crank for ever to restart and misses for a minute until getting back to normal. 454mag with cool fuel. Is as simple as plugging the fuel filter housing and running the return line back to the fuel tank? Almost seems too easy. I have the engine out right now and this would be the time to do this. But, I have also had a slight overheating issue and this problem never happened until the overheating started. It is most likely related, but should I still re route the line anyway. I have the overheating issue resolved.

Thanks

Yep, that is vaporlock. The easiest solution is to get the merc booster pump kit. Its a small electric pump booster that plugs into the regular engine harness.
If you are running any ethanol fuel, that will make it vaporlock more.

I have been very careful not to buy any ethanol fuel since the problem started. Would you happen to have a part# for the booster pump. Not sure my local Merc dealer will know what I need.

As Griff mentioned, it certainly sounds like vapor lock. While the pump is a pretty good fix, it's something else to buy and something else to break. I just return the fuel to the tank and not worry about it anymore. It is a sure fire fix that can be done with a couple feet of hose and a few fittings. Let me know if i can help.
Eddie

Try Bill at Ateco in Waukegan, ILL 847-623-2737
Just did a pair of 540s for me, they work well.
they perform as I requested.

Jeff H

I don't know the part#, but it is a fairly common problem and Merc has a tech bulletin with the info.
You can just run the fuel line back to the tank as well like Eddie said. There was another thread a few days ago where Eddie showed how he does it.

Bill and Jeff doing my motor right now. So far so good!!!! Can not wait to get back.