Popped the engine in my Firebird |
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Popped the engine in my Firebird |
Apr 23 2006, 03:35 AM
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#1
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Member Group: Advanced Members Posts: 231 Joined: 9-January 04 From: N.E Ga. Member No.: 112 |
I think I pretty well futzed up the engine in my Firebird at the Friday Open track session at Road Atlanta. It layed down on me coming down the back straight and I let off of it at the crest of the hill. Got back into it right after the crest and it started making a bit of noise. I checked the temp and oil pressure and both were good so I once again got back into the gas after 10B and that's when I decided that since I was right at the pits I would go ahead and pull in. Good thing too, I let off the gas as I was coming into the pits and it shut off. At first I thought it was a broken rocker or a push rod or something but I'm pretty sure it's a terminal condition. Gonna go get it Sunday. O-well, not that let down because I have had alot of fun with it and beat on it pretty well. It had over 250 1/4 mile passes, bout the same amount of AutoX passes, well over 100 miles of track time at Road Atlanta and around 55K hard street miles that includes a crapload of play up in the mountains.
I think it's time to get a big engine now,,, I'm thinking I want something like 500-550RWHP! I want a dead reliable bottom end,, any opinions on a 400cid+ short block? |
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Apr 23 2006, 04:28 PM
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#2
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Advanced Member Group: Advanced Members Posts: 854 Joined: 26-December 03 From: NYC, NY Member No.: 50 |
If it an LS1 and you have the money I'd say go for it, if it's an LT1 I wouldn't bother going over a 396
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Apr 24 2006, 03:37 PM
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#3
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Member Group: Advanced Members Posts: 231 Joined: 9-January 04 From: N.E Ga. Member No.: 112 |
It's a LS1 and I think after looking through a few vendors this weekend I'll be going with a LS2 based 402. Several different builders are offering them and it really looks like the best bang for the buck. Only down side is that I will not be able to run knock sensors untill someone figures out a way to change frequency in the PCM or something else that will work. Really like the knock sensors being there.
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Apr 26 2006, 08:09 PM
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#4
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Experienced Member Group: Advanced Members Posts: 1,957 Joined: 21-April 04 From: Utah Member No.: 317 |
Ever figure out exactly what broke? Katech rod bolts are great for making the low end more reliable. Did you have a fast ramp cam? That's what worries me about my setup.
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Apr 27 2006, 04:26 AM
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#5
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Member Group: Advanced Members Posts: 231 Joined: 9-January 04 From: N.E Ga. Member No.: 112 |
I haven't even looked at it yet, it's over at my parents house presently and it will be awhile before I get over there and check it out. I'm pretty sure it's a spun rod bearing though. The cam was a TSP 231 and it's an older and slower ramp design. I think it was just too many miles of high rpm running.
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