9000 rpm BMW S52 365 whp GDM Engineering cylinder head, intake, damper

GDM Engineering CNC race cylinder head package, GDM Billet intake, GDM race damper, GDM S54 to S52 exhaust flanges, S52 89.6mm crank, 87mm pistons 10.7:1 compression, CAT cams 298/290 12.5/12mm, 9050 peak rpm 365 sae corrected mustang dyno. Car owned and built by Ed graff @ 11/10’s racing. Please ignore the idle the 6-1 coupled with no ICV had the Link G4 in a tizzy

[@sannlivkoto]

9k+ rpm thats insane and sounds insane awesome car!

[@imnota]

Cool to hear one actually revving this high. There's one other video claiming 9200 and his shit sounds like it's hitting 7200 tops

[@robertfontaine3650]

We should be looking in the engine bay.

[@ghettodwella]

holy moly!

[@jzxvecca641]

idle sounds like a bike lol

[@kc550]

What opens these motors up the most? I have a 97 M3. I'm assuming the heads and cams go a long way. Awesome build and numbers!

[@visa5175]

intake opens up the best, then cams. After that you need bunch of supporting mods, big stroke crank is a problem when revving highs, need better damper and strenghtend oil pump shaft, additional chain tensinioner. valvetrain also needs upgrading and after that you need to port head. Doesnt cost much to get 260-270hp but after that it starts to add up quickly

[@kc550]

@visa5175 awesome brother, appreciate the insight, thank you! Might just go with the M50 manifold and tune for now. Equal length headers sound nice. Still amazed at those numbers, bravo 👏

[@11_10s_racing]

Biggest thing with this build was the head. Makes all the difference

[@JL-dz8sj]

This is probably as far as an s52 has ever been pushed being NA. What fuel was this running?

[@zemaestro]

This was e85 which was likely hurting power at 10.7:1. His head and intake change the trajectory of this platform, at least 5 serious builds going together now…

[@JL-dz8sj]

@@zemaestro interesting stuff. I was running full e85 on a stock M50 with my RHD itb kit, I don't think I gained much of anything without cams and a worn valve train! Was interesting to do and a good learning experience to go towards this new build I have. I'm trying to hand port another head and cast RHD runners to be similar to what you guys are doing. This is for a booster application so we'll see how this goes I guess.

[@thornboroughhomes7953]

@@zemaestro I see it made peak power at 8200rpms. Are you going to keep redline @9k? or was that just for fun?

[@purplejerry1]

@@JL-dz8sj sounds fantastic, definitely keep it on E if youre going boost good luck!

[@Mantenner]

This is definitely not as far as one has been pushed lol, the build is still relatively mild compression could be way higher.

[@ieuanevans7870]

is this using the rabid racing pistons and honda rods?

[@ieuanevans7870]

@G 3ee yeah rabid race developments make a set of s52 pistons that use honda b18 rods due to the better rod ratio

[@zemaestro]

JE off the shelf and stock rods

[@zemaestro]

@@That1ne92 changing rod length does not affect displacement

[@zemaestro]

@@That1ne92 no, sorry…you are wrong

[@yasinthephotographer5508]

@@ieuanevans7870 yup

[@blackmesa27]

you know that a properly tweaked NA engine is a best when it sounds like shit at idle lmao, every time performance na sound like a broken car at idle

[@brandonpadilla7132]

What LTW wing is that?

[@meizind6555]

the LTW one tf you mean

[@robertofresco]

Motor just threw down insane power and somebody asks what wing that is. SMH.

[@meizind6555]

@@robertofresco there's nothing we can do *napoleon music*

[@TranceFur]

@meizind6555 He’s just asking what brand of LTW wing it is. You don’t have to be a cunt.

[@mattysterling]

You got a IG?

[@zemaestro]

GDMengineering

[@user-oe8qj8ef4z]

سالم

[@szymon6207]

What a new showdown?😊