Springtime means 240 time again, after a little hiccup.

[silverkaturbo]

I just started drivin the 240 again now that its warmed up outside, but after a couple weeks, I had a little accident whith the old t25. Long story short, wastegate vacuum line issue ended its life. Luckily I already had this replacement on the way.[IMG][/IMG]Its a gt28 single ball bearing from a s14 sr20 i believe.I decided to go ahead and dress it up a little bit with a high temp ceramic powder coating on the exhaust side, and blue on the compressor side to match my valve cover I did last year. Yea, you don't see much of it when its hangin under the manifold, but it sure looks pretty. [IMG][/IMG][IMG][/IMG][IMG][/IMG]

And I figured while I was at it I might as well go on with the inevitable front mount.[IMG][/IMG]

So im not exactly sure how it happened, must have leaned in the wrong place or somethin while under the hood doin somethin else. But I took off down the road nice and easy drving like normal, but thought my turbo was making an awful lot of noise with nothing resulting from it. Still negative pressure according to the boost gauge so I pulled over to find the vacuum line was loose. I put it back on, continued driving, and then SMACK!!! No more whistling sound; the turbo locked up. Every now and again it would start spinning again but never for more than a couple seconds. I got back home and shut er down and with the motor off and turbo winding down all you could here was like sandpaper scraping sounds coming from the intake. It was awful.

OH, so this is what happens when your wastegate vaccume line becomes disconnected.[IMG][/IMG][IMG][/IMG]

Next on the list is going to be a new tune. I've been running blind on a emance tune with great results actually, other than carbon fouled plugs every now and then. Its definately rich. There are a couple dyno shops here in indy, but I want to stick with a rom tune, just one fine tuned for my setup. But, would a dyno shop be able to burn me a new chip, or will I have to have a safc or something in order for them to fix it? I still need to call them and ask to be sure, but i was just wondering how common this ability of rom tuning is within the average dyno shops.

One other question. Would this turbo be able to safely pull off my 250-275 horsepower goal? Im sure Il have to go bigger than my 370s and prob a bigger mafs as I am still on the stock.

[Chris28]

As long as you have an SAFC and the shop knows what they are doing you should be able to get them to tune it. 250 would be pushing it with your setup, but it seems possible. Get a wideband AFR gauge to see what your AFR's are doing at high RPM. I would keep your boost levels stock until you get a wideband unit.

[WDRacing]

That's a decent upgrade. I'd get some decent engine management next and you'll have a really fun and reliable car.

[silverkaturbo]

Well I just picked up a safc2 for a good price and im currently in negotioations for a wideband. I don't really trust my own skills since I have zero experience with an safc2 or the tuning side in general; figure I better leave it to the pros. It would be interesting to see what numbers It puts down anyway so il prob be goin to a dyno still. Unless someone else here in Indianapolis can give me a hand.