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rcm450 or rcm500

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Old Feb 6, 2024 | 08:13 AM
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Default rcm450 or rcm500

Hi,

I want to upgrade my td04, and i want to use one of these turbos.

My engine is stock for now but i'll rebuild with forged parts, cams etc.Probably displacement will be same(2lt)

I've seen rcm500 dyno charts, but i didn't see rcm450, has anyone experienced this turbocharger ?

regards,
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Old Feb 6, 2024 | 02:23 PM
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rcm450,md321t single scroll it's the same turbo,mdx555 to, even lm450 twin entry behave similar to single scroll versions.
why not precision 5530 gen 2?
Think weak point it could be Your gearbox,than on 2.0 all of them will be laggy, better if You forge an engine to go 2.1l for extra torque.
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Old Feb 6, 2024 | 03:29 PM
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Originally Posted by JdmSti2006
rcm450,md321t single scroll it's the same turbo,mdx555 to, even lm450 twin entry behave similar to single scroll versions.
why not precision 5530 gen 2?
Think weak point it could be Your gearbox,than on 2.0 all of them will be laggy, better if You forge an engine to go 2.1l for extra torque.
Thanks for reply, i have 2002 6 speed jdm type ra drivetrain(diff axles brembos etc.) My engine will be forged, i'm not afraid because of drivetrain, i like long rod setups but you're right about 2.1

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Old Nov 22, 2024 | 03:35 PM
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Did You buy new turbo?
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Old Nov 22, 2024 | 05:12 PM
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yes, i bought rcm500 single scroll but i didn't install yet, maybe i'll build my engine



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Old Nov 22, 2024 | 05:47 PM
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I installed mine rcm500 twinentry on my 2.1l jdm engine with link g4x ecu
made 493 on Tesco 99 ,529 on meth with 490 torque
mine 1000cc injectors maxed out on meth ,better to fit 1300cc but this are so expensive, im thinking about swirl pot and 2nd fuel pump in engine bay.






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Old Dec 1, 2024 | 06:33 PM
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graph on Tesco 99
impressed with it on 1.7 bar ,300 horses at 3800 rpms
with 2.0 bar will go like stabbed rat but that's next year after summer
Just seeing graph of gtx2971r, owens gtx3071r with 3" inlet smaller wheel but way worse spool on them


Last edited by JdmSti2006; Dec 3, 2024 at 01:10 PM.
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Old Dec 3, 2024 | 09:44 AM
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They're some great power and torque curves.
Bet that feels great on the road!
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Old Dec 3, 2024 | 02:06 PM
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Yes rcm500 spools early ,hit hard and keeps going to red line ,thats what i missed with vf37-out of puff to early.
Will test a car next year on track to.
meth map almost 400 torque from nothing ,1000cc injectors maxed out.




Last edited by JdmSti2006; Dec 3, 2024 at 02:10 PM.
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Old Dec 10, 2024 | 05:30 AM
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How is everything going now?
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Last edited by CamdenFox; Dec 21, 2024 at 11:29 AM.
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