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New build! Any speculations on safe power?

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Old 07-31-2022, 12:12 AM
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Default New build! Any speculations on safe power?

Hey guys! Threw a rod on my stock 2000 motor (too much boost, I knew it was coming)

Now I've got a VVT with
  • APR Head Studs
  • Forged Pistons (CP Forged Pistons)
  • Forged Rods ( MAHLE)
  • Rod Bearings (ACL)
  • 630 CC Flowforce injectors
  • TB2541 Turbo
  • Supertech MLS headgasket
  • eBay Intercooler
  • MS3X
This motor should be installed tomorrow (sunday) assuming everything goes together easily...

Anyway. Any speculation on what power I can safely make without blowing the engine? Boost levels? I've also got a 6 speed since the car is an SE. Also, I have the FM Stage 2 clutch (from my blown motor) but I also have a brand new stage 4 clutch works kit with a lightweight flywheel. Which would you guys run?
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Old 07-31-2022, 01:47 PM
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How well it is put together is a factor. I believe you mean how much power you can make reliably with a descent service life. Assuming the rods are Manley, not Mahle, there are no studs on the mains and its professionally assembled. I would say the trans being a used 6spd might be your limiting factor for strength at 300whp. I don’t know about the capability of the turbo. Maybe others know better.


Originally Posted by Morrob95
Hey guys! Threw a rod on my stock 2000 motor (too much boost, I knew it was coming)

Now I've got a VVT with
  • APR Head Studs
  • Forged Pistons (CP Forged Pistons)
  • Forged Rods ( MAHLE)
  • Rod Bearings (ACL)
  • 630 CC Flowforce injectors
  • TB2541 Turbo
  • Supertech MLS headgasket
  • eBay Intercooler
  • MS3X
This motor should be installed tomorrow (sunday) assuming everything goes together easily...

Anyway. Any speculation on what power I can safely make without blowing the engine? Boost levels? I've also got a 6 speed since the car is an SE. Also, I have the FM Stage 2 clutch (from my blown motor) but I also have a brand new stage 4 clutch works kit with a lightweight flywheel. Which would you guys run?

Last edited by LeoNA; 07-31-2022 at 04:51 PM.
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Old 08-01-2022, 10:54 AM
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That turbo won't break the gearbox or engine. In my mind it's a bad choice for a built motor, does it even have a T25 flange?
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Old 08-01-2022, 10:57 AM
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Originally Posted by der_vierte
That turbo won't break the gearbox or engine. In my mind it's a bad choice for a built motor, does it even have a T25 flange?
Yes its a 25 flange. Unfortunately the turbo was also blown. Go figure. It was smoking up a storm leaking oil past the seals. Just ordered a China GT28 to replace it with. That little turbo did put in some work though, it did really well on the little 1.8 and blew the stock motor! I have a vid of acceleration if I can figure out how to post it.

What really sucks is I must not have seated the main pulley properly (harmonic balancer or whatever) because it wobbles a tiny bit. There doesnt seem to be an easy way to get to it unless I yank the engine again.
Edit: Actually, I bet I could put it in gear, take radiator out, belts off and get it set right
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Old 08-03-2022, 06:48 AM
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You may have to drop the frame mounts of the sway bar and pull the radiator but an impact should be able to get in there.
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