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Author
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Topic: safe amount of boost?
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9cobrasvt8
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Member # 11078
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posted
 
 
Ok so ive got a 98 cobra and im putting a vortech v1 t trim on it, I have pretty much every bolt on there is, with 3:73 gears n aluminum drive shaft, 44# injectors, engine is stock when it comes to internals, the question is what is a safe amount if boost without blowing the engine or causing damage, thanks guys
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2013 Grabber blue coyote
1996 cobra
1996 gt h/c/i and gears
1998 cobra vert
1998 gt h/c/i
1997 gt blown
Posts: 1519 | From: under the hood | Registered: Jul 2011
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1ST0KGT
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Member # 10606
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posted
I was literally on the same blower, same gears and same cobra but just 42z instead and I was on 10lbz but blew my motor at 155k on the motor, I'd recommend to be on 8lbs on the motor
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RIP Willie Guzman (5LTRSVT)
04/24/87-11/23/12
Posts: 1742 | From: San Jose (SOUTH BAY) | Registered: Jan 2011
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9cobrasvt8
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Member # 11078
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posted
Ok how do I put it at 8 lbs?
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2013 Grabber blue coyote
1996 cobra
1996 gt h/c/i and gears
1998 cobra vert
1998 gt h/c/i
1997 gt blown
Posts: 1519 | From: under the hood | Registered: Jul 2011
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LXjames
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Member # 10791
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posted
Pulley sizes
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On Point Motorsport prez.
King Lx
Posts: 4761 | From: Pittsburg CA | Registered: Mar 2011
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9cobrasvt8
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Member # 11078
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posted
How do I find out wat the pulley I have now is? Dude said it was 10# but u never kno when buyin used, also where can I get them in sac, sorry for all the questions but never dealt with a blower before
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2013 Grabber blue coyote
1996 cobra
1996 gt h/c/i and gears
1998 cobra vert
1998 gt h/c/i
1997 gt blown
Posts: 1519 | From: under the hood | Registered: Jul 2011
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SwEeT03Gt
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Member # 10283
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posted
internals are good upto 450 rwhp so boost will be around 6-8lbs maybe 10lbs but that may be pushing it i'd get it dyno tuned for whatever boost you want it to
[ June 13, 2012, 01:16 AM: Message edited by: SwEeT 03 Gt ]
Posts: 4484 | From: -NicKlE n DiMe- | Registered: Sep 2010
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1ST0KGT
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Member # 10606
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posted
Pulley sizes, I'm on a 3.85 pulley on 10lbz but if you are going to boost more you also have to change the crank pulley to produce more boost and to get the belt not to slip you also have to convert to 8 rib, but all depends on your boost
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RIP Willie Guzman (5LTRSVT)
04/24/87-11/23/12
Posts: 1742 | From: San Jose (SOUTH BAY) | Registered: Jan 2011
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9cobrasvt8
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Member # 11078
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posted
Ok well I plan on doin internals but not for a little while cuz that shit is expensive lol, so to be safe I should just get a pulley for 8lbs
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2013 Grabber blue coyote
1996 cobra
1996 gt h/c/i and gears
1998 cobra vert
1998 gt h/c/i
1997 gt blown
Posts: 1519 | From: under the hood | Registered: Jul 2011
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9cobrasnake9
CAFords OG
Member # 575
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posted
Truthfully a t-trim is prob gonna be destructive on a stock motor. I would use a 3.85 with a stock crank pulley to keep it between 6-7 #'s. Or run a 3.6 with an aftercooler. I ran a 3.33 with my v-1 s trim which doesnt move as much air on an aftercooled setup. Make 11 pounds with it and it blew up shortly lol. Ring lands on the pistons let go. Here is my setup now.
[ June 13, 2012, 03:05 PM: Message edited by: 9cobrasnake9 ]
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96 Mystic Cobra
2011 F150 Raptor
Posts: 893 | From: Chico, Ca | Registered: Nov 2001
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coupedup
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Member # 9987
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posted
quote:
Originally posted by 9cobrasvt8:
Ok so ive got a 98 cobra and im putting a vortech v1 t trim on it, I have pretty much every bolt on there is, with 3:73 gears n aluminum drive shaft, 44# injectors, engine is stock when it comes to internals, the question is what is a safe amount if boost without blowing the engine or causing damage, thanks guys
1 millliiiiiooooooonnnnnn Pound # !!!!
Posts: 4406 | From: Ca | Registered: May 2010
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915.0gt
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Member # 9518
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posted
run 6-8lbs, keep the rpms low, have the tuner keep the tune "safe" (dont let him put a lot of timing into it), have them dial you in at around 420rwhp (450 fwhp), STAY UP ON THE OIL LEVEL.
save for new internals and a 03-04 cobra block and then run 15lbs and drive it like you stole it!
Posts: 536 | Registered: Oct 2009
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nitrous_bob
CAFords OG
Member # 77
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posted
id be feeling perfectly safe at about 12 lbs of boost, use a boost timing master, or a msd dial and based on weather keep it safe
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5.0 OG since 1990
Posts: 1402 | From: st clair shores MI | Registered: Nov 2000
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9cobrasvt8
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Member # 11078
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posted
Ok now another question, does anyone have the spacers for the idler pulley?
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2013 Grabber blue coyote
1996 cobra
1996 gt h/c/i and gears
1998 cobra vert
1998 gt h/c/i
1997 gt blown
Posts: 1519 | From: under the hood | Registered: Jul 2011
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SwEeT03Gt
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Member # 10283
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posted
quote:
Originally posted by 9cobrasvt8:
Ok now another question, does anyone have the spacers for the idler pulley?
just use washers ![[Razz]](tongue.gif)
Posts: 4484 | From: -NicKlE n DiMe- | Registered: Sep 2010
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9cobrasvt8
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Member # 11078
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posted
quote:
Originally posted by SwEeT 03 Gt:
quote:
Originally posted by 9cobrasvt8:
Ok now another question, does anyone have the spacers for the idler pulley?
just use washers
Wouldnt the pulley wobble? Have u seen this done before?
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2013 Grabber blue coyote
1996 cobra
1996 gt h/c/i and gears
1998 cobra vert
1998 gt h/c/i
1997 gt blown
Posts: 1519 | From: under the hood | Registered: Jul 2011
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Loudness
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Member # 8393
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posted
quote:
Originally posted by 9cobrasnake9:
Truthfully a t-trim is prob gonna be destructive on a stock motor. I would use a 3.85 with a stock crank pulley to keep it between 6-7 #'s. Or run a 3.6 with an aftercooler. I ran a 3.33 with my v-1 s trim which doesnt move as much air on an aftercooled setup. Make 11 pounds with it and it blew up shortly lol. Ring lands on the pistons let go. Here is my setup now.
Sell your car to me!
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Loading….
Posts: 504 | From: East Bay | Registered: May 2008
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9cobrasnake9
CAFords OG
Member # 575
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posted
Its always for sale!!! The wife would kill me if I let it go though!!
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96 Mystic Cobra
2011 F150 Raptor
Posts: 893 | From: Chico, Ca | Registered: Nov 2001
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BLK35th
CAFords OG
Member # 4685
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posted
quote:
Originally posted by 9cobrasnake9:
Truthfully a t-trim is prob gonna be destructive on a stock motor. I would use a 3.85 with a stock crank pulley to keep it between 6-7 #'s. Or run a 3.6 with an aftercooler. I ran a 3.33 with my v-1 s trim which doesnt move as much air on an aftercooled setup. Make 11 pounds with it and it blew up shortly lol. Ring lands on the pistons let go. Here is my setup now.
Still droolin off this set up.lol
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hahahahaha
Posts: 1412 | From: 650-408-510-415 | Registered: Jul 2004
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