Re: have ? about best combo
[Re: rtstreet]
#186198
01/07/09 12:17 PM
01/07/09 12:17 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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I would say a small block may be the way to go looking at the mustangs for instance most of those run small blocks with chargers and are in the sevens or low eights depending on the class.
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Re: have ? about best combo
#186199
01/07/09 12:55 PM
01/07/09 12:55 PM
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Joined: Jan 2003
Posts: 19,543 Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,543
Las Vegas
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The secret is in the Heads...Not sure the legal heads for a SB Mopar will get the job done personally. But I also thin Ryan or one of the SB head guys on here can better answer that.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: have ? about best combo
[Re: Al_Alguire]
#186201
01/07/09 01:47 PM
01/07/09 01:47 PM
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Joined: Jan 2003
Posts: 8,547 State College, PA
RyanJ
moparts member
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moparts member
Joined: Jan 2003
Posts: 8,547
State College, PA
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Quote:
The secret is in the Heads...Not sure the legal heads for a SB Mopar will get the job done personally. But I also thin Ryan or one of the SB head guys on here can better answer that.
245RP CNC INDY -1 with a 2.15"/1.625" "can" flow over 360/260 & have 2.90" of intake port cross section so..... it's in between a Ported INDY SR + a Ported INDY 440-1 flow wise/size wise...that's about maxed out INDY SB head IMO.
If W9 is legal I'd just do a 9...
The F1R is the real limiting factor to whole deal. I'm not a "racer" just an engine clown, but my thoughts would be how much TQ would the big motor make with boost (tremendous amt)& how do you hook that on cal tracs with a 10.5. Would definitely have to be a glide at that point... Especially when talking a Cent blower that comes on harder than a turbo down low..... I kind of agree with Kenny do high RPM SB although I'd do the up to 400" deal....just for sheer fact of trying to get it to hook. Lightened race block with alum heads will be pretty light motor & still allow to move weight around to rear of car to make weight.
I don't think power with any of the combo's will be the problem... If the F1R can put out 15 PSI (double atmosphere), (it lists at 38 PSI but that is all dependant on engine size it is feeding) you should be able to make 1200 out of a INDY 365 or max the F1R out at 1300-1400 at 390-400 inches.
I'd just go with whatever you're more comfortable with.
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Re: have ? about best combo
[Re: blownzoom440]
#186203
01/07/09 02:47 PM
01/07/09 02:47 PM
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Joined: Jan 2003
Posts: 8,547 State College, PA
RyanJ
moparts member
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moparts member
Joined: Jan 2003
Posts: 8,547
State College, PA
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Quote:
with the 525" making 1300HP it would take 16/18 psi i would think not having to stuff the extra psi into a smaller 368" that may need 25lbs to makeup for less cu.in.with a int gearing of 5.4/1 the pulleys would need 1.79/1 for 7,000 rpm at max rpm,flow and the F-1R at 68,000 rpm. i just wanted to bring some info to the post to relate to.
Customer of mine 3.33" Crank, 4.185 bore....367" motor.... 16 PSI boost 5.30 @ 131 @ 3450 lbs. I think you need to rethink you're 25 PSI on the SB idea to make power.
"Your HP computed from your vehicle ET is 1,172.86 flywheel HP Your HP computed from your vehicle MPH is 1,205.30 flywheel HP"
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Re: have ? about best combo
[Re: RyanJ]
#186204
01/07/09 02:58 PM
01/07/09 02:58 PM
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Joined: Jul 2005
Posts: 8,647 ELYRIA,OH
blownzoom440
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Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
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thanks! the info is not exact that i posted. just my thaughts.i know there is a lot more invalved in predidcting the HP he wants. not to steel the post but my engine dyno #.s were 985HP/930TQ at 6300 with .08 correction %.it is what it is.i just keep trying to make it better/tunning. http://www.youtube.com/watch?v=rvYjTkyqrmkthanks for all your input on posts!
Last edited by METAL STORM; 01/07/09 05:58 PM.
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Re: have ? about best combo
[Re: blownzoom440]
#186205
01/07/09 03:07 PM
01/07/09 03:07 PM
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Joined: Jan 2003
Posts: 8,547 State College, PA
RyanJ
moparts member
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moparts member
Joined: Jan 2003
Posts: 8,547
State College, PA
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Was'nt picking on you, just stating that it does'nt take alot of boost to make big power if motor is decent piece head/cam wise. That engine only makes around 600-620 NA I bet.... but then you put 16 PSI of intercooled boost on it &.... you double the power. 25 PSI on that particular motor should be making I dunno around 1600 HP? He has turned boost up but it breaks drivetrain & does'nt hook.
I hope to have mine on the chassis dyno sometime in May/June to tune it. 394 inch with 15 PSI non intercooled. I would hope it puts around ~1000-1050 to tires in street trim (not a race motor)? We'll see. Really should'nt be much of a challenge, mine should be making at least 650-670 NA based on similar engines I've dynoed NA.
That would be one nice thing about a blower motor VS turbo, so much easier to dyno them. I'd really love to dyno my turbo motor on the SF902 but almost impossible. It would take a week to get it setup on dyno.... Blower motor would'nt be too tough at all.
Last edited by RyanJ; 01/07/09 03:10 PM.
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Re: have ? about best combo
[Re: RyanJ]
#186209
01/07/09 11:46 PM
01/07/09 11:46 PM
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Joined: Aug 2006
Posts: 416 Eagleville Tn.
rtstreet
OP
mopar
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OP
mopar
Joined: Aug 2006
Posts: 416
Eagleville Tn.
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Quote:
Quote:
The secret is in the Heads...Not sure the legal heads for a SB Mopar will get the job done personally. But I also thin Ryan or one of the SB head guys on here can better answer that.
245RP CNC INDY -1 with a 2.15"/1.625" "can" flow over 360/260 & have 2.90" of intake port cross section so..... it's in between a Ported INDY SR + a Ported INDY 440-1 flow wise/size wise...that's about maxed out INDY SB head IMO.
If W9 is legal I'd just do a 9...
The F1R is the real limiting factor to whole deal. I'm not a "racer" just an engine clown, but my thoughts would be how much TQ would the big motor make with boost (tremendous amt)& how do you hook that on cal tracs with a 10.5. Would definitely have to be a glide at that point... Especially when talking a Cent blower that comes on harder than a turbo down low..... I kind of agree with Kenny do high RPM SB although I'd do the up to 400" deal....just for sheer fact of trying to get it to hook. Lightened race block with alum heads will be pretty light motor & still allow to move weight around to rear of car to make weight.
I don't think power with any of the combo's will be the problem... If the F1R can put out 15 PSI (double atmosphere), (it lists at 38 PSI but that is all dependant on engine size it is feeding) you should be able to make 1200 out of a INDY 365 or max the F1R out at 1300-1400 at 390-400 inches.
I'd just go with whatever you're more comfortable with.
with good intelligent discussion, like this, we can learn alot. thanks keep it up, new wrinkles in the brain p.s. everyone else to, i dont know how quote that many
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