[ap485]

Originally Posted by katsooba

That pr kit looks promising!

Keep us updated

Awesome work!

Thanks!

[ap485]

Originally Posted by Blackjacks

O.k perfect, great information thank you!!

The shop I was at is running into the same problem with a customers car who's shooting for 1,000+. Put the engine down, and lifting the heads up.

With the price of these cars and their engines dropping down so fast, it sounds like it's time for a call to ARP and seeing what it would cost to get them to produce something.

I had an 04 GTO before my BMW with a large cam and converter, it was tuned perfectly and I had zero drivability problems when people told me it would never work. Rarely if at all surged, and was a monster at the dragstrip!

Do you know if you can tune these auto's and lock up speeds?

There’s an Android App called xHp flastool that allows you to purchase different tunes and even build your own transmission tune using a very basic Tunerpro definition file. Similar to the Openflash tablet concept, except any Android tablet will work. Most likely you can change lock up speeds thru a custom tune.

[ap485]

Originally Posted by Blackjacks

I'm so glad you posted this, I'm looking to do the same thing, and also need to fab my own oil cooler up too. You mind telling me how much you are into this ballpark wise??

I was shocked...well not really shocked cause it's BMW related when I saw how much people were charging for aftermarket "BMW" oil coolers. hahaha

I bought all those parts out of EBay for less than $550.

[ap485]

Finally, I got numbers on the heads. Huge gains after porting

[weehe126]

Ah makes sense now on why ABR has flow data for the N55 lol.

I am literally waiting for your build to complete and post results before I build mine.

[ap485]

Originally Posted by weehe126

Ah makes sense now on why ABR has flow data for the N55 lol.

I am literally waiting for your build to complete and post results before I build mine.

We’re finally getting close to finishing it.

[Bours]

How much whp would more flow for porting head would bring you think ? My guess is 15 whp since no upgraded cam

[Ozzie335i]

Originally Posted by Bours

How much whp would more flow for porting head would bring you think ? My guess is 15 whp since no upgraded cam

Not worth the expense if that is all.

I am wondering how the aftermarket pistons work out. Concerned about the expansion / contraction characteristics versus eutectic. I trust the manufacturer took that into consideration.

[Bours]

Originally Posted by Ozzie335i

Not worth the expense.

I am wondering how the aftermarket pistons work out. Concerned about the expansion / contraction characteristics versus eutectic. I trust the manufacturer took that into consideration.

My engine is at mmp in texaa right now getting forged je pistons and forged carillo rods

Engineer at mmp said oem the clerance that JE recommend is 0.04 buy that could cause piston slap specially in cold climate like mine. So he will put a custom clearance of 0.03


That way he said itll be perfect and i went forged pistons cause a member blew up a piston oj same setup as me. ( ps2 on meth )

Ill keep you guys updated about pistons

[ap485]

Originally Posted by Bours

How much whp would more flow for porting head would bring you think ? My guess is 15 whp since no upgraded cam

Usually around 15whp on N/A motor and twice that on boosted cars. Will know for sure on the dyno very soon.

Originally Posted by Ozzie335i

I am wondering how the aftermarket pistons work out. Concerned about the expansion / contraction characteristics versus eutectic. I trust the manufacturer took that into consideration.

Like I mentioned to Bours. The piston to wall clearance is very critical. That’s why the shop should get custom piston on each build.

[Bours]

Originally Posted by ap485

Usually around 15whp on N/A motor and twice that on boosted cars. Will know for sure on the dyno very soon.



Like I mentioned to Bours. The piston to wall clearance is very critical. That’s why the shop should get custom piston on each build.

Lmk what clerance they go with plz looking forward for your dyno good luck buddy !

[CobraMarty]

Originally Posted by ap485

Usually around 15whp on N/A motor and twice that on boosted cars. Will know for sure on the dyno very soon.

On a different engine, at a much lower boost, 10-11psi, we've seen the equivalent to 1-2psi gain in power with ported BV heads.
At double the boost level you will be running I would expect to see a power increase of equivalent to 2-3 pounds of boost.

Can't wait for the dyno testing.

[ap485]

Originally Posted by CobraMarty

At double the boost level you will be running I would expect to see a power increase of equivalent to 2-3 pounds of boost.

I hoping for that too!

[ap485]

A few more pics before the motor goes back in the car.

Stage 3 heads going in. BTW, N55 heads take almost double the time to assemble compared to the N54 due to valvetronic components.





Big boost 3.4 turbo kit looking great after been installed.



Motor and transmission finally met each other again. Lol. Also, I got ADE engine mounts and Revshift trans mounts.





More to come soon.

[deemarr 335i]

Awesome bro 😁

[Bours]

UPDATE ???

[ap485]

Originally Posted by deemarr 335i

Awesome bro ��

Thanks man!

Originally Posted by Bours

UPDATE ???

The car is up and running. The shop have been testing it and so far its all good. Anyhow, I’ve been extremely busy at work and I haven’t found time to go to the shop.

[Bours]

Originally Posted by ap485

Thanks man!



The car is up and running. The shop have been testing it and so far its all good. Anyhow, I’ve been extremely busy at work and I haven’t find time to go to the shop.

aight good to see everthing worked ! now drive this rocket and lets see some logs and dyno graph

[Evilchef71]

You are my hero!!!

[RMNB]

Originally Posted by ap485

Thanks man!



The car is up and running. The shop have been testing it and so far its all good. Anyhow, I’ve been extremely busy at work and I haven’t found time to go to the shop.

...no time to go to the shop? Are you freakin' kiddin' me? It's not even my build and it's Christmas day to me!!!

Epic build bro! Congrats! Hope it's a reliable monster for you. We all can't wait to see the numbers. Now...go to the shop please.

[Bours]

Originally Posted by 335xi Beast

...no time to go to the shop? Are you freakin' kiddin' me? It's not even my build and it's Christmas day to me!!!

Epic build bro! Congrats! Hope it's a reliable monster for you. We all can't wait to see the numbers. Now...go to the shop please.

+1

[JonEQuest]

Are the pistons the same as the N54 engine?