would you put a centrifugal on a 10.5:1 motor in a street car?

[DSG2003Mach1]

4.6 dohc, 03/04 4valve heads, the car is just a street car to have fun in, not out street racing not hitting the tracks to try and win classes or set records. Street tune would be on the conservative side. I know you would have to watch the timing especially on pump gas. Its a P1sc with the 3 core air-air intercooler, would probably try to run 13-15psi and in the ~550 rwhp area (I realize with cleaned up heads, cams and longtubes the P1 might not hit those boost numbers)

I know people run em on 10.1:1 aluminators and such, how much difference does that .4 really make?

 

[blackbob]

yes

 

[01yellercobra]

I'd do it. I kinda wish I went with 10:1 instead of 9.5.

 

[Willy Mo]

as long as you tune for your fuel theres no problems. You just have to make sure you have the fuel to support the power you want.

 

[tistan]

Hell yeah!!! corvette owners do it all the time.

 

[blackbob]

It will be STUPID ON TOP OF STUPID NEXT TO STUPID ON TOP OF STUPID PLUS STUPID..........................Fast.

 

[heffs03mach1]

no one is asking the real question what type of bottom end is in that motor? that will determine how much power it will shit out.

 

[01strokersnake]

no one is asking the real question what type of bottom end is in that motor? that will determine how much power it will shit out.

+100. If you have forged internals, go for it! Otherwise keep it from 8-10 psi range (maybe less).

 

[DSG2003Mach1]

no one is asking the real question what type of bottom end is in that motor? that will determine how much power it will shit out.

its def built....should be good to 800 or so

 

[96supersnake]

Do it, sounds fun!!

 

[03zincyellowsvt]

thats my plan when i build a motor at least 10:1 and plenty of boooost

 

[Mean Green GT]

I would do it as long as you have 93 octane, however if you only have 91 I would stay around 8-10 PSI.

 

[00BlackGT]

yes... that is gonna be my combo when i turn er' up!

 

[speedofsound]

i'd do it. I kinda wish i went with 10:1 instead of 9.5.

+1

 

[Sonic605hp]

don't be scurred. do it.

 

[99cobra09]

I just tuned my car with a procharger at 13 psi with belt slippage, pegged out MAF and 10.1 c.r on a built shortblock. Timing was at 13 degrees, still got some more to go, got to fix the belt slippage and my pegged out BA3000 MAF. I made 525rwhp on pump gas 91 with a mix of torco in the tank taking it up to 6000rpm.

 

[cbr repsol]

I dont see why it couldnt be done safely . people are doing that to the new 11 5.0's and they have 11.0 to 1 cr.

 

[95_XB331]

I'd do it. I kinda wish I went with 10:1 instead of 9.5.

Sure wish I went 9.5:1 vs my current 8.5:1. Look the 2011 5.0 is over 11.1 and can push 6psi... On a roots blower and 91 octane too...

If you can afford the coin for a few dyno sessions and a good tuner, do it. Tho, you'll never be able to use a race blower (sci, ysi, t, novi2k, f1) at its best efficiency (>12psi)..

 

[01yellercobra]

Sure wish I went 9.5:1 vs my current 8.5:1. Look the 2011 5.0 is over 11.1 and can push 6psi... On a roots blower and 91 octane too...

If you can afford the coin for a few dyno sessions and a good tuner, do it. Tho, you'll never be able to use a race blower (sci, ysi, t, novi2k, f1) at its best efficiency (>12psi)..

The coyote motor also has the variable cam timing. I imagine that's helping it live with the boost.

 

[LOVESBOOST]

^^^correct but at WOT they default to their max I believe, and WOT boost is when most harm is done. So not sure if it helps that much. I could be wrong though


I would def boost a 10.5 to 1, it should make damn good power