Vortech owners, how many miles on your stock block since vortech?
03-17-2009, 10:11 PM
#62
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2.87 pulley 421whp 366trq 12psi installed 66-70k made it to around 112k before stock block failed new motor in the works. o had blower replaced once for bearing failure
Last edited by dorkstar; 03-17-2009 at 10:15 PM.
03-18-2009, 05:26 AM
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I recently had my pulley upgraded to the 2.87 with a oil cooler & fuel return line. I got the good news that I laid down 421whp on the "heartbreaker", but was heartbroke after Sharif told me my blower started making "that" noise! Blower was removed and yeap I have signs of implier play, this is after my blower was shipped to Vortech BEFORE it was installed
Take GOD my car was AT Forged when it happened. Sorry for the long *** post!
Take GOD my car was AT Forged when it happened. Sorry for the long *** post!
03-18-2009, 12:30 PM
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I'm curious to see what kind of numbers people are putting down on stock motors with impeller/trim upgrades. More importantly, I want to see the power curve in comparison to say a standard trim with a 2.87 
Anyone?
I'm actually considering the 928 V+ impeller upgrade, 2.70 pulley and an aquamist setup as my next upgrades. I'm pretty confident I can run that on a stock block, make significantly more power across the board (particularlly down low) and not blow anything up.
Anyone?I'm actually considering the 928 V+ impeller upgrade, 2.70 pulley and an aquamist setup as my next upgrades. I'm pretty confident I can run that on a stock block, make significantly more power across the board (particularlly down low) and not blow anything up.
03-18-2009, 12:54 PM
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Blower failed on 2.87pulley around 95k miles good thing vortech dosnt ask much questions for warranty repair turnaround was quick & still drove the car just didnt past 3000 rpm only pain was shop labor
very true vortech is a very safe kit just some of us get greedy 
03-18-2009, 01:00 PM
#74
well i installed my kit so if the blower fails i will pull it myself and send it back, so vortech didn't ask any questions about what pulley u were running? how long did u actually use the kit though before it failed or how many years maybe? cause the stock pulley they warrranty for 3 years, but when u change the pulley they told me it cut to a year, i plan to do the 3.12 but don't wanna kick myself in the *** for warranty work if that comes after a year..
03-18-2009, 01:10 PM
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well i installed my kit so if the blower fails i will pull it myself and send it back, so vortech didn't ask any questions about what pulley u were running? how long did u actually use the kit though before it failed or how many years maybe? cause the stock pulley they warrranty for 3 years, but when u change the pulley they told me it cut to a year, i plan to do the 3.12 but don't wanna kick myself in the *** for warranty work if that comes after a year..
03-18-2009, 01:23 PM
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3 year warranty, carb legal (saved me in socal) & can still drive the car without blower... Safety +10 over turbos and the stock block runs like a champ if u dont go to crazy & good tune!
03-18-2009, 01:24 PM
#77
about a year ago, my stock engine barely bent one of the middle rods after about 10k miles of supercharging. 25k or so miles total on engine. I could barely even tell, but there was a light thumping sound. After thinking it was the timing chain or some other minor thing, the engine was pulled and the shortblock itself had a rough spot when you turned the crank by hand
Hard to know what exactly the culprit was, but I don't think it was any single thing.
Might have been the power level
Might have been the time when I was NA and missed a shift at redline, hitting 8000 rpms for a brief second
Both my cats burned up and one idea is that the cat debris might have prevented the exhaust from exiting that side and the heat and pressure backed itself. The computer probably tried to compensate and one way or another burned the other cat up. I'm using better custom made HF cats now (both AAM metal matrix HF cats and crawford HF cats suck for FI BTW)
My gut tells me it was something completely stupid and not necessarily the vortech, though that wouldn't have helped
Now I'm running a GTM engine along with my same JWT cams but now with JWT springs and 10:1 CR. I'm just running 91 pump gas now since race gas is still $8 a gallon vs $1.84 or whatever for 91. Finishing up the break in here soon. I also went back to the stock crank pulley. So I should overall lose some power from where I was before, except I now have the Osiris ECU flash software which lets you adjust the cam phase timing so who knows how much that'll help.
My goal now is to just have the car run. I would have gone with the 3.8 stroker kit, but with the economy money is tighter and I have a feeling I'd have to spend more money working out bugs with my fuel system trying to feed that extra power, and power just isn't a big deal to me anymore anyway.
Hard to know what exactly the culprit was, but I don't think it was any single thing.
Might have been the power level
Might have been the time when I was NA and missed a shift at redline, hitting 8000 rpms for a brief second
Both my cats burned up and one idea is that the cat debris might have prevented the exhaust from exiting that side and the heat and pressure backed itself. The computer probably tried to compensate and one way or another burned the other cat up. I'm using better custom made HF cats now (both AAM metal matrix HF cats and crawford HF cats suck for FI BTW)
My gut tells me it was something completely stupid and not necessarily the vortech, though that wouldn't have helped
Now I'm running a GTM engine along with my same JWT cams but now with JWT springs and 10:1 CR. I'm just running 91 pump gas now since race gas is still $8 a gallon vs $1.84 or whatever for 91. Finishing up the break in here soon. I also went back to the stock crank pulley. So I should overall lose some power from where I was before, except I now have the Osiris ECU flash software which lets you adjust the cam phase timing so who knows how much that'll help.
My goal now is to just have the car run. I would have gone with the 3.8 stroker kit, but with the economy money is tighter and I have a feeling I'd have to spend more money working out bugs with my fuel system trying to feed that extra power, and power just isn't a big deal to me anymore anyway.
Last edited by sentry65; 03-18-2009 at 01:38 PM.
03-18-2009, 01:31 PM
#78
Hmmm...what do you recommend for HFC's then with Vortech? I burnt out my stocks and am currently using Crawfords (which irritatingly rasp at WOT boost)...
BTW...you boosting more now with the built engine?
BTW...you boosting more now with the built engine?
about a year ago, my stock engine barely bent one of the middle rods after about 10k miles of supercharging. 25k or so miles total on engine. I could barely even tell, but there was a light thumping sound. After thinking it was the timing chain or some other minor thing, the engine was pulled and it had a rough spot when you turned the crank by hand
Hard to know what the culprit was. Lots of working theories why it happened, but no one will ever know.
Might have been the power level
Might have been the time when I was NA and missed a shift at redline, hitting 8000 rpms for a brief second
Both my cats burned up and one idea is that the cat debris might have prevented the exhaust from exiting that side and the heat and pressure backed itself. The computer probably tried to compensate and one way or another burned the other cat up. I'm using better custom made HF cats now (both AAM metal matrix HF cats and crawford HF cats suck for FI BTW)
My gut tells me it was something completely stupid and not necessarily the vortech, though that wouldn't have helped
Now I'm running a GTM engine along with my same JWT cams but now with JWT springs and 10:1 CR. I'm just running 91 pump gas now since race gas is still $8 a gallon vs $1.84 or whatever for 91. Finishing up the break in here soon.
Hard to know what the culprit was. Lots of working theories why it happened, but no one will ever know.
Might have been the power level
Might have been the time when I was NA and missed a shift at redline, hitting 8000 rpms for a brief second
Both my cats burned up and one idea is that the cat debris might have prevented the exhaust from exiting that side and the heat and pressure backed itself. The computer probably tried to compensate and one way or another burned the other cat up. I'm using better custom made HF cats now (both AAM metal matrix HF cats and crawford HF cats suck for FI BTW)
My gut tells me it was something completely stupid and not necessarily the vortech, though that wouldn't have helped
Now I'm running a GTM engine along with my same JWT cams but now with JWT springs and 10:1 CR. I'm just running 91 pump gas now since race gas is still $8 a gallon vs $1.84 or whatever for 91. Finishing up the break in here soon.
03-18-2009, 02:01 PM
#80
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pulley change
Hate to be the bearer of bad tidings guys but as of the beginning of this March if you need to have your blower repaired under the warranty you will be required to send your bracket in for inspection. If the seal is broken or missing your 3 year blower warranty will be voided to 1 year. If your date of purchase is already past one year then your warranty will no longer be valid.