Stroker finished... Safe break in on stock fuel and t25?

[lccynmbr13]

Finally got my stroker all finished up I'll be putting it in over the weekend. Getting the old motor out went smooth and I can only hope going back in will be as much of a pleasure. I'm going to be using the stock ecu (without dsmlink), t25, and stock injectors for the break in. After the break in is over I'm going with AEM EMS, GT35R, Walboro, FMIC and all the other good stuff. I'm just wondering if it's totally safe to be running this thing without DSMLink nor a wideband. I'm not going to be revving it past 4k until July when I finish the project off. Not looking for opinionative answers please only answer if you have experience with stroker builds. I tried to post in the stroker forum yet after 9 months I'm still stuck in the newbie section! I should probably add that I'm running FP3 cams with dual springs and titanium retainers. This is where my big worry comes in due to all the extra air being sucked in I don't trust the injectors to be supplying enough fuel.

 

[GVR4592]

Who built the engine?

 

[lccynmbr13]

Pina Motorsports in Kent
He's giving me a big pamphlet on break in procedure and all that but I want to see what other peoples experiences have been in the past doing what I'm doing.

 

[GVR4592]

I would just follow Andre's recommendations. He knows how the engine was built and what it can handle for proper break-in.

 

[Nors]

I'd also run a wideband to be safe. So if you see any dangerous numbers get out of it.

 

[rconlon67]

Hey just wondering if you have had any issues or results from running this setup?

I am currently in the middle of a 2.3 build myself.
I had some basic mods(up to date in my profile), but no tuning, wideband, or logging devices. IT was time for a rebuild so I figured I would go big and not regret it later. I have been doing alot of reading, but can't seem to find many answers to my questions of...

1)Can I safley install the stroker motor when it is done, without any tuning software or upgrades to my fuel setup?

2)If I get word from the machine shop that any head work needs done, I would like to build it up while they are working on it. How would Cams effect the above question? I was thinking FP3's or 3X's since they seem to be designed with the stroker in mind, but I know they will add alot more flow...

Thanks for any input,
Ryan

 

[hatch]

I have the same question. I'm finishing up my stroker build also and plan to run it on stock ECU/Fuel for break in.

 

[TSi_with_psi]

wow, it looks like there are quite a few of us in the same situation here. I'm almost done building a 2.3L stroker as well, and i have been wondering the same thing. I have to take a trip from pennsylvania to washington state not long after i finish, and im hoping that i won't run into any problems with lean AFR's. Ill let you know if i run into any problems,
Jason

 

[4SFED_GSX]

one of my team members did a 2.3 stroker with 9:1 pistons and broke it in with a 14b, it always seemed as if the turbo never supplied enough air for the motor. it would always fall off badly after a certain rpm (can't remember what it was at the moment), anyone else have an experience like this with their stroker? he's currently running a 60-1 with out any issues of the like.

 

[chicagoavenger]

Run it hard!!!http://mototuneusa.com/break_in_secrets.htm or if you want more detail do a quick search.

 

[thekellbeast]

one of my team members did a 2.3 stroker with 9:1 pistons and broke it in with a 14b, it always seemed as if the turbo never supplied enough air for the motor. it would always fall off badly after a certain rpm (can't remember what it was at the moment), anyone else have an experience like this with their stroker? he's currently running a 60-1 with out any issues of the like.

Yeah, I had that issue with the t25 on the 2.0. That damn thing fell off at 4k rpms.

 

[burnnxs]

Run it hard!!!http://mototuneusa.com/break_in_secrets.htm or if you want more detail do a quick search.

i built a 2.0 with 8.5.1 wiseco's all new setup , brake her in mild hard !! i think its bad to baby it to much 15psi here and there wont do nothing , remember it is not frankestein is a motor "drive it like youll drive her the rest of her life"

 

[awdtalon4451]

i agree chicagoavenger "run it like a scolded dog"

 

[Black_Bullet]

http://mototuneusa.com/break_in_secrets.htm

On my old gst I did the moto man break in ( in that link ) and
had perfect compression in a less than 100 miles and almost no leak down or anything.
I broke it in on 10lbs for the first 50 miles, then 15lbs after that while changing my oil twice on first start up before driving it, then changing it another two times up to 100 miles then going till 1500 before switching to synthetic...( Why, well read that link and itll tell you that synthetic is too slippery for new rings to seal properly.)
You can toss a good amount of boost at a new engine if you know its built good, the boost actually helps seal the rings, you just dont want to rev it too high on those new bearings...
I wouldnt rev past 5k till you get to at least 100miles. But if you get 20 psi by 5k so be it, wont hurt it. The first 50 miles are the most crucial, I was basically under boost and downshifting letting the engine decelerate on its own on the high way constantly for those first 50miles all the way down the high way which is why I think my results were so good on break in... Good luck with that stroker, wish I had the money to build one, id love to feel the torque break all four tires off the road...!!!!