what injectors and throttlebody size? turbo
07-13-2006, 02:30 PM
#1
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what injectors and throttlebody size? turbo
alright so im going to be running about 18 psi hopefully on the turbo... so i was thinking 32lb injectors, 75mm throttle body and spacer, ported cobra intake to 75mm, and 76mm mass air? do i need to go with higher flow injectors and bigger t/b and maf? ill be using a stand alone fmu probly also. motor will have ported gt40 cast heads, mild cam and lifters, undecided on bottom end. thanks
07-13-2006, 02:54 PM
#3
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RE: what injectors and throttlebody size? turbo
ORIGINAL: EADracing93
alright so im going to be running about 18 psi hopefully on the turbo... so i was thinking 32lb injectors, 75mm throttle body and spacer, ported cobra intake to 75mm, and 76mm mass air? do i need to go with higher flow injectors and bigger t/b and maf? ill be using a stand alone fmu probly also. motor will have ported gt40 cast heads, mild cam and lifters, undecided on bottom end. thanks
alright so im going to be running about 18 psi hopefully on the turbo... so i was thinking 32lb injectors, 75mm throttle body and spacer, ported cobra intake to 75mm, and 76mm mass air? do i need to go with higher flow injectors and bigger t/b and maf? ill be using a stand alone fmu probly also. motor will have ported gt40 cast heads, mild cam and lifters, undecided on bottom end. thanks
What RWHP and/or ET are you shooting for?
IMO, I would go with the largest high impedence injector. I think 50's are the largest. Unless you plan to tune with some aftermarket software in which case I would go with an even larger low impedance inj like 72's. Those 32's aren't going to cut it...I've never heard of 32# inj for a stang.
TB is fine; however, I would go with an 80mm MAF meter min.
Those GT40 cast heads will be your bottle neck.
Install a wideband.
Your RWHP goal will determine what bottom end to get.
07-13-2006, 03:42 PM
#5
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RE: what injectors and throttlebody size? turbo
ORIGINAL: JeffUtica
What RWHP and/or ET are you shooting for?
IMO, I would go with the largest high impedence injector. I think 50's are the largest. Unless you plan to tune with some aftermarket software in which case I would go with an even larger low impedance inj like 72's. Those 32's aren't going to cut it...I've never heard of 32# inj for a stang.
TB is fine; however, I would go with an 80mm MAF meter min.
Those GT40 cast heads will be your bottle neck.
Install a wideband.
Your RWHP goal will determine what bottom end to get.
ORIGINAL: EADracing93
alright so im going to be running about 18 psi hopefully on the turbo... so i was thinking 32lb injectors, 75mm throttle body and spacer, ported cobra intake to 75mm, and 76mm mass air? do i need to go with higher flow injectors and bigger t/b and maf? ill be using a stand alone fmu probly also. motor will have ported gt40 cast heads, mild cam and lifters, undecided on bottom end. thanks
alright so im going to be running about 18 psi hopefully on the turbo... so i was thinking 32lb injectors, 75mm throttle body and spacer, ported cobra intake to 75mm, and 76mm mass air? do i need to go with higher flow injectors and bigger t/b and maf? ill be using a stand alone fmu probly also. motor will have ported gt40 cast heads, mild cam and lifters, undecided on bottom end. thanks
What RWHP and/or ET are you shooting for?
IMO, I would go with the largest high impedence injector. I think 50's are the largest. Unless you plan to tune with some aftermarket software in which case I would go with an even larger low impedance inj like 72's. Those 32's aren't going to cut it...I've never heard of 32# inj for a stang.
TB is fine; however, I would go with an 80mm MAF meter min.
Those GT40 cast heads will be your bottle neck.
Install a wideband.
Your RWHP goal will determine what bottom end to get.
I would also buy a large injector for the intent to scrap that FMU. And I agree with an 80mm MAF, but I'd get a PMAS and stay away from C&L.
07-13-2006, 05:49 PM
#8
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RE: what injectors and throttlebody size? turbo
damn i need that big of an injector?? ****. i would think it would run rich as hell like that.... but i mean im only going for maybe 500 hp maybe... i just love the feel of a turbo over a supercharger. just got rid of my turbo rx7 and i dont want anything other than a turbo... no bottom end will not be stock... i wnt to run a 347 but ill probly just end up running a 306 all forged of course.... so im only looking for 500 hp... ill probly just end up settling for like 15-16lbs of boost... that should be good for 500hp wouldnt you say?
07-13-2006, 06:09 PM
#9
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RE: what injectors and throttlebody size? turbo
you will be running more like 550-600rwhp with that set-up.
you will also need a Dart or A4 block to handle that power.
check it out...... this guy is running 331 with A4 block, AFR 205's, stock cam, 70mmTB, 42#inj, 255 pump, 15lbs boost = 555rwhp
http://www.turbomustangs.com/smf/ind...?topic=63096.0
he also noted that this maxed out his 42's and was upgrading
you will also need a Dart or A4 block to handle that power.
check it out...... this guy is running 331 with A4 block, AFR 205's, stock cam, 70mmTB, 42#inj, 255 pump, 15lbs boost = 555rwhp
http://www.turbomustangs.com/smf/ind...?topic=63096.0
he also noted that this maxed out his 42's and was upgrading
ORIGINAL: EADracing93
damn i need that big of an injector?? ****. i would think it would run rich as hell like that.... but i mean im only going for maybe 500 hp maybe... i just love the feel of a turbo over a supercharger. just got rid of my turbo rx7 and i dont want anything other than a turbo... no bottom end will not be stock... i wnt to run a 347 but ill probly just end up running a 306 all forged of course.... so im only looking for 500 hp... ill probly just end up settling for like 15-16lbs of boost... that should be good for 500hp wouldnt you say?
damn i need that big of an injector?? ****. i would think it would run rich as hell like that.... but i mean im only going for maybe 500 hp maybe... i just love the feel of a turbo over a supercharger. just got rid of my turbo rx7 and i dont want anything other than a turbo... no bottom end will not be stock... i wnt to run a 347 but ill probly just end up running a 306 all forged of course.... so im only looking for 500 hp... ill probly just end up settling for like 15-16lbs of boost... that should be good for 500hp wouldnt you say?
07-13-2006, 06:11 PM
#10
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Posts: 15,042
RE: what injectors and throttlebody size? turbo
^^ Agree... you are definetly pushing your limits with a stock block. It would be a waste to build a nasty *** turbo combo and have it split on the third run!