eaton questions

[mjcobra]

Hey guys! I just bought a 2003 Marauder and have a few questions about putting a eaton together

1.Will I need a Cobra timing cover or just those custom brackets?
2.Also I know there is a egr delete but will that through a check engine? I live in MA and we have some crazy inspection
3. I would like to put a 2.8 upper and port the eaton alittle, my 2003 cobra had that set up.

I rather have gone twin turbo but cant find any kits

[MercOut]

Welcome to MM.net!!!

1. You can use either or. I'm using the custom brackets tho
2. Yes I think it'll throw a code if you don't turn it off in the tune.
3. I'm using a ported eaton but I can't remember the pulley size. From what I've read on here, our internals are good up to 450hp but you can get more on a safe tune.
4. There aren't any turbo kits for our cars, you'll have to get a custom kit built. If you search through the posts, I think theres someone still having a kit built for them.

[SC Cheesehead]

Hey guys! I just bought a 2003 Marauder and have a few questions about putting a eaton together

1.Will I need a Cobra timing cover or just those custom brackets?
2.Also I know there is a egr delete but will that through a check engine? I live in MA and we have some crazy inspection
3. I would like to put a 2.8 upper and port the eaton alittle, my 2003 cobra had that set up.

I rather have gone twin turbo but cant find any kits

You'll want to use the stock timing cover, the Cobra part requires notching the frame. The brackets are all you'll need, plus a belt tensioner from a Cobra set up.

You can use your EGR, just have to re-orient it to get it to fit. Justbob did that on guspech750's car with the Eaton swap.

http://www.mercurymarauder.net/forums/showthread.php?t=72076&highlight=egr

Keep in mind the MM engine isn't identical to the Cobra; different internals and higher compression. A 2.8" upper with a stock lower on the MM is gonna be pushing over 14 lbs, which is getting up there. You prolly want to stay between 10 and 13 lbs.

I'm running a stock upper and 2 lb lower, which is giving me 10.7 lbs boost. I'm at 430 rwhp with that set up through FRPP shorty headers and a Mac Pro-Chamber mid pipe with high flow cats and a pretty conservative tune. A set of long tube headers and a litte more timing and I know I could hit 450.

Porting isn't a bad idea either. Send DOOM a PM, he can give you some good insight into gains he's seen through his Posi-port mods.

[RacerX]

Gortch brackets ftw.
You must have the EGR hooked up and working in Massa2chits. All emissions parameters have to be turned on and working in the tune. NH is almost or just as bad now, so I know first hand. Removing the egr doesn't give you much annyway. It's only used at low rpms.
If you are interested in porting your Eaton, see my porting thread here: http://www.mercurymarauder.net/forums/showthread.php?t=73687&highlight=porting

[SC Cheesehead]

Gortch brackets ftw.
You must have the EGR hooked up and working in Massa2chits. All emissions parameters have to be turned on and working in the tune. NH is almost or just as bad now, so I know first hand. Removing the egr doesn't give you much annyway. It's only used at low rpms.
If you are interested in porting your Eaton, see my porting thread here: http://www.mercurymarauder.net/forums/showthread.php?t=73687&highlight=porting


Oops, forgot about the work you did, Bill. :o

Thanks for posting up your stuff!

[guspech750]

http://img.tapatalk.com/a693689a-8b09-93b3.jpg

http://img.tapatalk.com/a693689a-8b2f-64f6.jpg




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Eaton Swap + 4.10's = Wreeeeeeeeeedom!!

[guspech750]

Red X's FTW! :burnout:


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Eaton Swap + 4.10's = Wreeeeeeeeeedom!!

[SC Cheesehead]

Red X's FTW! :burnout:


Sent from my iPhone
Eaton Swap + 4.10's = Wreeeeeeeeeedom!!
http://t0.gstatic.com/images?q=tbn:ANd9GcSNLqZI9F-UiRRbbNvXBq_KN-xjfNS7sAuLh8NxUjLAgjK6m-W4d48N4iY (http://cdn.styleforum.net/c/ca/ca996f50_ray-charles-i-cant-see-****.jpeg)

[CWright]

http://t0.gstatic.com/images?q=tbn:ANd9GcSNLqZI9F-UiRRbbNvXBq_KN-xjfNS7sAuLh8NxUjLAgjK6m-W4d48N4iY (http://cdn.styleforum.net/c/ca/ca996f50_ray-charles-i-cant-see-****.jpeg)

:lol: I was thinking the same thing!

[Guittard22]

What part of mass ?

[mjcobra]

Wow I am very appreciative of the warm welcoming!
I live in Winchester few miles outside of Boston

Im sure I will have more questions later like wiring diagrams and routing for the coolant

[SC Cheesehead]

Wow I am very appreciative of the warm welcoming!
I live in Winchester few miles outside of Boston

Im sure I will have more questions later like wiring diagrams and routing for the coolant

PM me with your e-mail addy, I'll send you some info.

[mjcobra]

My list so far includes
Ported Eaton
Intercooler
Lower manifold $425 shipped
Intercooler pump
BAP 40amp



Need ideas on injectors (dont want 39lbs) MAF and sct tuner or chip

I deff want a ported eaton with

my goal is 475 to 500hp. I dont care about the motor. I will put a cobra long block eventually. I really dont want to blow it imediatlly but i dont want to waste my money.

[SC Cheesehead]

My list so far includes
Ported Eaton
Intercooler
Lower manifold $425 shipped
Intercooler pump
BAP 40amp



Need ideas on injectors (dont want 39lbs) MAF and sct tuner or chip

I deff want a ported eaton with

my goal is 475 to 500hp. I dont care about the motor. I will put a cobra long block eventually. I really dont want to blow it imediatlly but i dont want to waste my money.

What are you considering other than 39 lb injectors?

You'll want to go with a dyno tune after getting the blower installed. If you purchase an SCT tuner, whoever does the dyno tuning will use that to upload the tune via your OBDII port; there's no need to purchase a chip.

475 to 500 rwhp is going to require some exhaust work as well; better plan on another $2,000 or so for long tube headers and a low restriction exhaust system behind it.

What's your total budget for the project? The closer you get to 500 hp, the more spendy it gets...

[blkZooM]

would it be wrong or a bad idea to just start off with 60ibs or 80 injectors if you have plans for a lot more power in the future or are those injectors too big

[SC Cheesehead]

would it be wrong or a bad idea to just start off with 60ibs or 80 injectors if you have plans for a lot more power in the future or are those injectors too big

I don't think the injectors are going to be your chokepoint, making sure you have enough fuel pressure and flow are primary concerns.

How much power you planning to make that you're considering 80 lb injectors?

[mjcobra]

1.Will i be able to run a 2.76 upper and a stock lower, with a good tune?
2. Can I reuse the stock fuel rail or need one out of the cobra?
3. Can you use RTV between the intercooler and S/Cer
4. Instead of making a crossover pipe I saw that people on SVTFORUMS are using a new product with AN fittings

I have
M112 Blower w. 2.76upper (self porting tuesday)
intercooler
Lower intake
tb
tb plenum
So far $900 into

[guspech750]

2.76 upper I would think make too much boost on a stock MM motor. I personally wouldn't. I have a 3.0 upper and a stock lower that makes 10-11 lbs of boost.

You can use the Stock fuel rail. You will just have to slightly bend the fuel I let off to the side a little to clear the Eatons intake. At least I had to on mine.


And I used RTV sealant on almost everything that requires a seal. Even my intercooler underneath the Eaton.

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Eaton Swap + 4.10's = Wreeeeeeeeeedom!!

[blkZooM]

I don't think the injectors are going to be your chokepoint, making sure you have enough fuel pressure and flow are primary concerns.

How much power you planning to make that you're considering 80 lb injectors?

600 to the wheels is the ultimate goal, i've already looked into a return style system the Zack has. 60 ib is the ideal injectors I would like use but, figured I would ask about the 80 ib.

I havent been able to find any info stating that the 60's ib can or can not get me to my goal

[SC Cheesehead]

2.76 upper I would think make too much boost on a stock MM motor. I personally wouldn't. I have a 3.0 upper and a stock lower that makes 10-11 lbs of boost.

You can use the Stock fuel rail. You will just have to slightly bend the fuel I let off to the side a little to clear the Eatons intake. At least I had to on mine.


And I used RTV sealant on almost everything that requires a seal. Even my intercooler underneath the Eaton.

Sent from my iPhone
Eaton Swap + 4.10's = Wreeeeeeeeeedom!!


^^^^^^ What he said. ^^^^^

A stock lower and a 2.76 upper's gonna give you around 15 lbs boost, too much for our motors.


600 to the wheels is the ultimate goal, i've already looked into a return style system the Zack has. 60 ib is the ideal injectors I would like use but, figured I would ask about the 80 ib.

I havent been able to find any info stating that the 60's ib can or can not get me to my goal


Here you go:

http://www.gtsparkplugs.com/InjectorSizeCalc.html

Tip of the hat to 1stMerc for the link.

[mjcobra]

My goal is high 11s. honestly I just want to hang with e63 and cars of that nature. keep my luxury and reliability I belive 475 to 500 is where I need to be.

i ran low 12s in my 2003 cobra convert with just a pulley, intake and tune. i cant remember but i think i put 450rwhp 495rwtq

now i will be running a ported eaton with the same pulley, intake a tune bigger injectors and a KBBAP. 475hp to 500

This is only a guess but i think will be pretty accurate


then 4.10s
actually how is the highway with 4,10s?

[justbob]

BradleyG runs a 2.8 upper and so far so good?

600 to the wheels and 2.76 too much for the bottom end? Kinda lost there? If your worried about future upgrades, you'd be pretty hard pressed to ever see mid 500's from an eaton anywho...

If you plan on keeping the stock bottom, just good ole 39's will always outperform the bottom end.


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[mjcobra]

scratch the pulley! 2.9?

[blkZooM]

BradleyG runs a 2.8 upper and so far so good?

600 to the wheels and 2.76 too much for the bottom end? Kinda lost there? If your worried about future upgrades, you'd be pretty hard pressed to ever see mid 500's from an eaton anywho...

If you plan on keeping the stock bottom, just good ole 39's will always outperform the bottom end.


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I'm lost ? When I do get aorund to doing the swap I have no plans on increasing boost with the eaton.

[justbob]

Then you lose a lot of power going to an 8.5 comp engine from a 10.0 that you currently have. Cobra motors are great, I even have a 3000 mile '04 one in stock. But I also have a +2 or +4 ring (can't remember right now), a 2.8 upper, 60# injectors, and stage 2 Crower cams sitting next to it to help with the compression difference.

Good luck on whatever you end up with.


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[mjcobra]

Thats another guy! He kinda hijacked my thread

[RacerX]

Skip the ported Eaton and go with a TVS or Whipple. The 03/04 Cobra versions will slap right onto the lower Eaton plenum with intercooler. 60lb injectors and a forged rotating assembly with 9.2+cr. May as well just rebuild using the Al block. It'll handle 1,000hp. Tranny should be rebuilt to handle 500+ to the wheels also.

Or, make sure you have a really good tuner that is spot on with pulling enough timing and adding plenty of fuel to keep her from detonating.

[blkZooM]

My bad didn't mean to hijack

[justbob]

Thats another guy! He kinda hijacked my thread

My bad. I was starting to think the same.

You should still have a concrete game plan for end results. If you plan to upgrade blocks later, you can start by collecting parts over time for the upgrade like me and sit back and enjoy what you have for now, also like me. It takes a LOT of money to go from 450 to 600. Hell, I've owned her eight years now, I have all the time in the world.


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[guspech750]

I love my 4.10's along with my Eaton swap. Sooooo much fun.

Might want to look into 4.30's. I've driven Justbobs car with 4.30's and they too are fun and not much different on the highway as far as RPM's go. Just more fun factor.

Mo powa and Mo gear = Mo fun!!

[SC Cheesehead]

My bad. I was starting to think the same.

You should still have a concrete game plan for end results. If you plan to upgrade blocks later, you can start by collecting parts over time for the upgrade like me and sit back and enjoy what you have for now, also like me. It takes a LOT of money to go from 450 to 600. Hell, I've owned her eight years now, I have all the time in the world.


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^^^^ What he said! ^^^^^

I'm guessing costs will at least double, the cost curve is definitely expotential as you start getting past 450.

I'm guessing between $10K and $20K to get there with a 4V modular, whereas 450 will cost maybe $4,500 - $5,000 or so (figuring Eaton swap).

[mjcobra]

I love my 4.10's along with my Eaton swap. Sooooo much fun.

Might want to look into 4.30's. I've driven Justbobs car with 4.30's and they too are fun and not much different on the highway as far as RPM's go. Just more fun factor.

Mo powa and Mo gear = Mo fun!!


4.30s sound fun
what are some pros and cons with 4.10s to 4.30s every car is different

[SC Cheesehead]

4.30s sound fun
what are some pros and cons with 4.10s to 4.30s every car is different


The only con I can think of is slightly higher rpm at highway cruising speeds.

Pro: more responsiveness.

[mjcobra]

Installing the ring and pinion is the only thing on this car I wont do my self! I am not sure how to set the backlash, nor do I have the tools to do so.

I will get new bearings, seals, ring and pinion (4.30) and crush washer

[guspech750]

Installing the ring and pinion is the only thing on this car I wont do my self! I am not sure how to set the backlash, nor do I have the tools to do so.

I will get new bearings, seals, ring and pinion (4.30) and crush washer

Sweeeeeeeeet man!! :burnout:


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4.10's + Eaton swap = Wreeeeeeeeeeeeeeedom

[mjcobra]

after thinking about the brackets, I have decided to go with the cobra timing cover and crank shaft. The install of the timing cover shouldn't take more then a hour. and saves alot of money? What do you guys mean by notching the frame? I havent looked at it so pictures would be nice.

I think the idea is good because eventually i will do the cobra motor and the frame will already be notched!

What are some pros and cons?

[guspech750]

after thinking about the brackets, I have decided to go with the cobra timing cover and crank shaft. The install of the timing cover shouldn't take more then a hour. and saves alot of money? What do you guys mean by notching the frame? I havent looked at it so pictures would be nice.

I think the idea is good because eventually i will do the cobra motor and the frame will already be notched!

What are some pros and cons?

With the Cobra cover. The alternator sits low near the bottom of the motor. So in order for you to use the Cobra cover, you would have to cut, box in and weld the frame on the Merc so the alternator will clear the frame.

Brackets are pricey but will save you gobs of time and frustration. Old style Brackets use only 3 bolts for each bracket.

Bam!! Done.

http://img.tapatalk.com/d/12/09/21/u5ahezyz.jpg

As for the Cobra motor. Just install the Marauder cover. No need to use the Cobra cover and notching the frame.

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4.10's + Eaton swap = Wreeeeeeeeeeeeeeedom

[SC Cheesehead]

With the Cobra cover. The alternator sits low near the bottom of the motor. So in order for you to use the Cobra cover, you would have to cut, box in and weld the frame on the Merc so the alternator will clear the frame.

Brackets are pricey but will save you gobs of time and frustration. Old style Brackets use only 3 bolts for each bracket.

Bam!! Done.



As for the Cobra motor. Just install the Marauder cover. No need to use the Cobra cover and notching the frame.

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4.10's + Eaton swap = Wreeeeeeeeeeeeeeedom

^^^^^ True, that.