What did you do today to your 3/S?

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Originally Posted by Rakuny

Imo, he should run wastegate pressure boost and break it in as hard as possible.. After reading this...

Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power

I decided to go for it, I ended up with very good compression numbers and my engine's been taking a beating for the last 40k miles, still running very strong.

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Hard break-in AMEN! I stuffed 14psi down my engine less than 1 hour after it was built. Going on 65K now. No blowby past the top rings and the cyliners still have crosshatching. Motor is very strong and very clean and the rigs don't chatter and cause smoke with me running an open crankcase.

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Originally Posted by Forest Gump

rich tune is not good for breakin, washes the rings down. You'd rather be lean at low boost and not rich. You aren't going to blow it up at 6PSI if it is just a little lean, but if it is really rich the rings may not seat.

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That's what I suspected. Would I be ok with installing the wideband and retuning it prior to re-ringing or would I be better off doing what I said and essentially reverting to the stock tune?

Hmmm... Perhaps I'll have to go against the grain with this one and run it hard after I build it then. Does the same apply for new bearings as well with you guys?

Yeah I'm doing new bearings too... From what I've read it's not a huge issue since the tolerances on the bearings are good enough there should be no issues

I haven't really posted a whole lot since the accident with my white '94 VR4 last year. Being down and out sucks! :( I picked up a black '94 VR4 but didn't want to start working on it until I got the title and had the time.

I bought the VR4 with a motor that jumped a LOT of teeth on the crank. Those heads are most likely totally toast, maybe the cylinder walls too, and the belt ended up having a hole straight through the center of it (a bolt, rock or something must have punched through it, I don't know)

I got the title recently and today I started all of the prep work to swap the motor. Luckily my white VR4s motor is still in good shape and ready to drop in! :biggrin:

Took the hood off and just started going to town removing stuff. The car was entirely bone stock so I have a lot of work to deleting the stuff that I wont need/use/want. It's just the first day but besides the axles, exhaust, transfer case, etc, it's almost ready to come out.

Hopefully by the end of this weekend I'll have a VR4 that I can drive again after more than a year! :)

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Sweet... I love black 3Ss

Meee tooo! This is the only black 2nd gen that I've ever seen. All of the black ones have always been 1st gens.

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Originally Posted by DK77

That's what I suspected. Would I be ok with installing the wideband and retuning it prior to re-ringing or would I be better off doing what I said and essentially reverting to the stock tune?

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if you can get it tuned ok before rebuilding that would be fine.

Ok, thanks for the input.

I started to pull the downpipe to swap in a 3.5" high flow cat but only had an hour to work on it so I only got it pulled off. I noticed I had a leak at the rear 02 housing so I'm going to beat my flange a little to square it up.