Interest in Bolt on Turbo kit?

[jdt10768]

Sounds great, how much $, available when?

[brads2002]

So how was it?

Scary! More because I thought something was going to brake. Thanks for the dyno.

[MikeW]

I'm fighting the urge to turn mine up to 12 psi. The thought, "I can always just replace the engine" really needs to be purged from my brain.

[Ocell]

Interest in Bolt on Turbo kit?

Hah! Yeah, M42s are cheap, right? Right?

I'm installing ARP head studs soon (just got them in yesterday) in preparation for that same urge.

[MikeW]

Now that its running better than I thought I am getting ready to put her up in the garage and strip everything down. On the list will be:

- ARPs
- Cleanup Simon's Mess
- Replace Starter
- Install COPs
- Install Volvo Fan
- Fix Oil Pan Screws
- Figure out leak between engine and transmission (engine oil - not getting into clutch)
- Replace Timing Chain

Anyone have other items they think would be useful I'm listening.

[MikeW]

One thing I wanted to mention is that I wasn't really so impressed with the tune, until I replaced my O2 sensor! It made all the difference in the world and fixed an idle problem I had been having before installing the turbo. Car runs better and smoother now than it ever has.

While on the topic of fixing things. I finally got the correct dimmer switch from Pelican and as hoped it gave me back my dash lights.

[djmossm42]

Now that its running better than I thought I am getting ready to put her up in the garage and strip everything down. On the list will be:

- ARPs
- Cleanup Simon's Mess
- Replace Starter
- Install COPs
- Install Volvo Fan
- Fix Oil Pan Screws
- Figure out leak between engine and transmission (engine oil - not getting into clutch)
- Replace Timing Chain

Anyone have other items they think would be useful I'm listening.

I'm assuming that replacing the chain includes the guides and tensioner piston if it hasn't been done. Would also check all the cam and sprocket teeth. Depending on how deep you are getting into it would consider getting a lower timing case from a late M42. They ditch the idler wheel for a deflection rail. There are cases where the wheels have fractured around it's mounting points. I'm considering this myself. This will open up another can of worms though and add more to the list but if you have it opened up it's best to take care of as much as you can. There is also an updated oil pressure valve. Not sure how much better it is. The late M42s ended in early 96 before changing to the M44.

Sent from my SGH-T769

[MikeW]

good info, thanks! I want to consider all options with the guts all opened up.

[brads2002]

I would recommend doing all the coolant lines. I went with the mess under the intake route everything from the dealership I think was under 200. Didn't replace the clamps all mine were good. Also you should really do the rubber fuel lines. Go oem.

[brads2002]

I forgot to mention the clutch my stock clutch with low miles would not hold. I converted to the 323 m20 option. Holds just fine

[MikeW]

Interest in Bolt on Turbo kit?

Think I can take it up to 15 psi with just ARPs and clutch swap? I don't think my clutch is stock but won't know till I get inside. No problems so far.


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[jakeb]

Think I can take it up to 15 psi with just ARPs and clutch swap? I don't think my clutch is stock but won't know till I get inside. No problems so far.


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My buddy's e21 that we designed the tune on was over boosting for a bit when he has the wastegate preload set wrong. He was around 14psi for awhile and it held. He did dial it back to 9psi just to be sure.

This is on an m42 with around 160k on it and the clutch that came with the engine. Now...who knows if it is stock or how many miles are on it. But he thrashes it pretty good.

So ARPs..a good clutch. m20 would be good...and go to 15psi it will be happy. We might need to tweek the tune some.

[dpmcdonald]

Well, I know some have waited a long time for this.

1991 318i M42
Boosted with Jake's Kit
9 psi
torque at the flywheel

Great looking numbers! Was this on a flywheel dyno?

[wazzu70]

Its done on a virtual dyno from data thats been logged. These are flywheel numbers though.

[jntar]

Wanted to throw something out there specifically about Jake's tune. I am running my own custom setup. Its similar to Jake's kit, but defiantly not the same. I was running jakes tune at first before swapping over to megasquirt. I recently had my car on the dyno and made 180hp/185tq at the wheels Sae corrected on a dynojet. Jake's tune was defiantly more powerful than these numbers. The car pulled much harder before I swapped over to MS. I wouldn't be surprised if his kit made 190-195whp.