Anybody here got a charged car?
11-29-2003, 12:07 AM
#9
Registered User
Join Date: Jul 1999
Location: KANSAS
Posts: 160
Originally posted by RacinLT1
it would be wise to lower the compression before you add a blower.
Stock LT1's + Boost = timebombs,its not a matter of IF it will blow,more like a matter of when.
it would be wise to lower the compression before you add a blower.
Stock LT1's + Boost = timebombs,its not a matter of IF it will blow,more like a matter of when.
General rule of thumb is no more than 6 pounds of boost on a stock LT1. However, that being said... there are just as many people who have ruined their motors on 6 pounds as there are that have ran fine for 20,000 miles on 6 pounds. Luck of the draw. Considering forced induction? Consider rebuilding first.... cause you'll eventually be doing it anyway somewhere down the line.
I was one of the unlucky ones...
I broke the ringlands on 2 pistons within 2,000 miles of installing a supercharger. Was only running 5 pounds intercooled, and the stock LT1 motor only had 29,000 miles on it at the time. That was a costly mistake.
If I had it to do over again... I'd have gone heads and cam and left the blower for AFTER I had a forged bottom end.... not before.
Of course... everyone here told me the same damn thing when I asked about forced induction... but OBVIOUSLY I didn't listen.
LOLBest of luck with whatever you decide.
Last edited by Teek; 11-29-2003 at 12:13 AM.
11-29-2003, 12:18 AM
#12
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Thread Starter
Join Date: Oct 2003
Location: The Land Of Oz
Posts: 275
oh I know i've seen it happen had a friend blow his 5.0 cobra he put his life into out of running to much boost. I'm paying to have it put in and tuned professionally. So rebuilding might not be to bad but its going to cost a lot more then the 4k I have set aside
11-29-2003, 12:36 AM
#13
Registered User
Join Date: Jul 1999
Location: KANSAS
Posts: 160
Eventually they ALL cost a lot more than we had planned on or set aside.
That was another mistake I made...
JUST taking into consideration the cost of the blower.
I fogot about the added costs... like fuel injectors, tires, tuning and scanning software (that was nearly a grand right there) gauges, and the stock clutch that I ruined within 1,500 miles. Had the motor actually LIVED a bit longer... haha.... I probably would have destroyed a few other things as well. (like the rear end)
In the end, the trick is not so much getting the power.... it's getting everything else built up to TAKE the power.... and staying within a budget. Keep that in mind when you're making your shopping list.
Not trying to talk you out of anything... just reminding you to be prepaired. It's probably cheaper, certainly easier, and a heck of a lot safer to make 400hp with a heads/cam package on a 97,000 mile motor than it is with a blower... but either way other issues are bound to crop up. Wear and tear can break the bank on these projects, no matter what route you take.
Good luck.
That was another mistake I made...
JUST taking into consideration the cost of the blower.
I fogot about the added costs... like fuel injectors, tires, tuning and scanning software (that was nearly a grand right there) gauges, and the stock clutch that I ruined within 1,500 miles. Had the motor actually LIVED a bit longer... haha.... I probably would have destroyed a few other things as well. (like the rear end)
In the end, the trick is not so much getting the power.... it's getting everything else built up to TAKE the power.... and staying within a budget. Keep that in mind when you're making your shopping list.
Not trying to talk you out of anything... just reminding you to be prepaired. It's probably cheaper, certainly easier, and a heck of a lot safer to make 400hp with a heads/cam package on a 97,000 mile motor than it is with a blower... but either way other issues are bound to crop up. Wear and tear can break the bank on these projects, no matter what route you take.
Good luck.
Last edited by Teek; 11-29-2003 at 12:39 AM.
11-29-2003, 12:41 AM
#14
Registered User
Join Date: Feb 2003
Location: Martin Mi
Posts: 715
with careful selection of parts you can easily build a LT1 for under 4000. I agree with the rest of the tribe, build motor first (with blower future in mind) than add the blower. Use thinner head gaskets to keep your comp up till you put the blower on the new motor. Or just get some killer heads with larger combustion chambers and do em the same time as the blower, to lower comp. Prorac1
11-29-2003, 12:46 AM
#15
Registered User
Join Date: Nov 2002
Location: Jacksonville
Posts: 4,784
Guess I've been one of the lucky ones, I've got almost 25K miles on my S trim V1. Hopefully I can get it sent back to Vortech for the SQ treatment as the whine is driving me insane.
You guys are right about the stock bottom end and boost, I know mine is just waiting for the most inopportune time to go so I try not to hit the boost too hard (unless I'm spanking a cobra or vette or something).
If I had it to do again, I would probably have stuck with the heads and cam route I had picked out, but I got such a deal on the blower I couldn't refuse. $1400 for the entire kit minus fuel pump and BTM box, but I got a crap load of different pullies with it, all 10 ribs. Anyway, I'm trying to finish my twin turbo GTA before my 97 dies, here's hoping.
You guys are right about the stock bottom end and boost, I know mine is just waiting for the most inopportune time to go so I try not to hit the boost too hard (unless I'm spanking a cobra or vette or something).
If I had it to do again, I would probably have stuck with the heads and cam route I had picked out, but I got such a deal on the blower I couldn't refuse. $1400 for the entire kit minus fuel pump and BTM box, but I got a crap load of different pullies with it, all 10 ribs. Anyway, I'm trying to finish my twin turbo GTA before my 97 dies, here's hoping.