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Author
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Topic: What size injectors and maf to get to 450 rwhp?
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Svt Tony
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Member # 9959
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posted
 
 
Running a well built 347 motor it put down 379 rwhp but was hoping for more lol dyno guy said will need to up my 30's to at least 42's and bigger maf 80/90 mm
This true or can I still get 450 with 30's and 72mm maf?
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" u wanna play u gatta pay "
Posts: 1579 | From: 209 | Registered: Apr 2010
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Blow_U_In_Reverse
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Member # 12298
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30lb injectors are too small.. Even 36lb injectors are pushing it to the limit at 450 horsepower.. Better safe than sorry, I would go get the 42lb injectors..
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"Real Men Get BLOWN"
-1993 Cobra "COBRUUH"
-1984 T-Top Notchback
#KurganTuned
Posts: 2688 | From: FiJi-925-650 | Registered: Aug 2012
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Svt Tony
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Member # 9959
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any brand in particular? I will also need to get a bigger maf. What size shd I get 80mm or? where can I find a kit maf and sensors together?
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" u wanna play u gatta pay "
Posts: 1579 | From: 209 | Registered: Apr 2010
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Fostang
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Member # 3752
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90mm maf and 42lb injectors. Plenty of room too 500rwhp
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67' Fastback TT 408
67' Camaro Lsx
64' Corvette Fuelie
57' Chevy Bel Air Lsx
68’ Pony Convertible
66’ Pony Coupe
Posts: 3012 | From: Stockton/Danville | Registered: Nov 2003
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Svt Tony
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Member # 9959
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posted
quote:
Originally posted by Fostang:
90mm maf and 42lb injectors. Plenty of room too 500rwhp
where can I buy these? been looking around and no one has a kit! I wd like to get same brand maf and injectors
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" u wanna play u gatta pay "
Posts: 1579 | From: 209 | Registered: Apr 2010
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RAP66
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Member # 3360
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posted
quote:
Originally posted by 209 FIVE.0:
quote:
Originally posted by Fostang:
90mm maf and 42lb injectors. Plenty of room too 500rwhp
where can I buy these? been looking around and no one has a kit! I wd like to get same brand maf and injectors
I used a 90mm LMAF I picked up from a buddies shop. 42# injectors I got from BOI.
http://www.blueovalindustries.com
I did have to add Diablo Mafia because the LMAF pegged during the dyno tune. If you havethe funds look into an SCT MAF.
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91GT Kurgan Tuned:12lbs of boost 492.4 rwhp / 483.1 rwtq
http://killcarb.org/
www.fordstrokers.com
Posts: 893 | From: SF Bay Area | Registered: Oct 2003
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Boss 327
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Member # 9143
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N/a or f.i
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"You'll never truly understand building engines until you can make power N/A. FI overshadows an engines defficiency." Al Papito
Posts: 1789 | From: East Bay | Registered: May 2009
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Svt Tony
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Member # 9959
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posted
quote:
Originally posted by Boss 327:
N/a or f.i
N/A
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" u wanna play u gatta pay "
Posts: 1579 | From: 209 | Registered: Apr 2010
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Stangs R Us
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Member # 4495
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posted
i have an 80mm C&L maf if you need it pm me , it might even have the calibration tube for 42s in it i will have to double check
Posts: 3100 | From: sacramento | Registered: Aug 2005
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Pure Stang
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Member # 7251
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posted
Since you're na and still making under 400rw the 30's are still goods anything over that would be 36's and above. Wish I could remember the link to injectors sizes for NA motors vs power adder.
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HEART BREAKER
R.I.P Willie Guzman (5ltrsvt) you will be missed brother.
04/24/87 - 11/23/2012
90 lx 347 RIP
86 gt
89 lx- next project
Posts: 6497 | From: San Jose | Registered: Nov 2006
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Boss 327
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Member # 9143
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posted
lb/hr = max hp x brake-specfic fuel consup / number of injectors
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"You'll never truly understand building engines until you can make power N/A. FI overshadows an engines defficiency." Al Papito
Posts: 1789 | From: East Bay | Registered: May 2009
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Boss 327
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Member # 9143
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posted
.50 is the bfsc for N/A.
[ 2014-09-13, 02:00 AM: Message edited by: Boss 327 ]
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"You'll never truly understand building engines until you can make power N/A. FI overshadows an engines defficiency." Al Papito
Posts: 1789 | From: East Bay | Registered: May 2009
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Blow_U_In_Reverse
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Member # 12298
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posted
remember to use horsepower at the motor, not at the wheels..
[ 2014-09-12, 05:55 PM: Message edited by: Blow_U_In_Reverse ]
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"Real Men Get BLOWN"
-1993 Cobra "COBRUUH"
-1984 T-Top Notchback
#KurganTuned
Posts: 2688 | From: FiJi-925-650 | Registered: Aug 2012
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CalBoy101
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Member # 13131
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posted
A lot of guys use the Lightning 90mm maf's because they are a good deal ($180 or so) but keep in mind those mafs peg at around 400 to 430 rwhp.
I had one but it was pegging so I went to a SCT BA2600. These are a direct swap for a lighting maf but are good to 600 rwhp, they cost around $230.
These are pretty popular mafs so most tuners already have the transfer curves for them.
Posts: 34 | From: San Francisco | Registered: Aug 2013
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Svt Tony
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Member # 9959
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posted
quote:
Originally posted by CalBoy101:
A lot of guys use the Lightning 90mm maf's because they are a good deal ($180 or so) but keep in mind those mafs peg at around 400 to 430 rwhp.
I had one but it was pegging so I went to a SCT BA2600. These are a direct swap for a lighting maf but are good to 600 rwhp, they cost around $230.
These are pretty popular mafs so most tuners already have the transfer curves for them.
Yup youre rite! Tune shop did mention to go with sct ba 2600 or 3000 for anything over 400 rwhp
Thanks for the info
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" u wanna play u gatta pay "
Posts: 1579 | From: 209 | Registered: Apr 2010
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Svt Tony
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Member # 9959
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posted
quote:
Originally posted by Boss 327:
lb/hr = max hp x brake-specfic fuel consup / number of injectors
Thanks Boss 327 36 lbs is more than enough for 450 rwhp but Im going with 39's or 42's just to keep more hp options open! No such things as to much hp lol
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" u wanna play u gatta pay "
Posts: 1579 | From: 209 | Registered: Apr 2010
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