 how many lbs of boost |
 Jul 29, 2007 - 9:54 PM
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Enthusiast  Joined Dec 24, '06 From jonesville Currently Offline Reputation: 4 (100%)  |
how many lbs of boost can a stock 5s head handle....im not worried abt. the internals just the actual head.
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Aug 5, 2007 - 8:37 AM
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Enthusiast Joined Oct 17, '04 From St Louis, MO Currently Offline Reputation: 0 (0%) |
Some portwork numbers to give you an idea... this is from an E55 mercedes head with stock cams...
Intake , 2 X 38mm valves Peak flow 261 CFM Average flow 201 CFM Intake, 2 X 39mm valves + Race port Peak flow 304 CFM (Increase of 16.4%) Average flow 219 CFM (Increase of 8.9%) Exhaust, 1 X 43mm valve Peak flow 167 CFM Average flow 123 CFM Exhaust, 1 X 43.5mm valve + Race port Peak flow 212 CFM (Increase of 26%) Average flow 141 CFM (Increase of 14%) To give you an idea, each 1.455 CFM is about 1 HP... Most people don't see this kind of data for Toyotas so i thought i'd share... -Nuke -------------------- 2005 MB C200 Kompressor- K&N, Apexi WS2 Catback, DIY Voltage stabilizer, Intrax Springs, H&R RR swaybar, VDO Boost Gauge @ 6psi, Greddy L7 plugs, +0 Rear tires
To Do: E-manage Ultimate tuned up to 12psi |
Posts in this topic
Kerr1 how many lbs of boost Jul 29, 2007 - 9:54 PM
lagos c. this question is impossible to answer Jul 29, 2007 - 10:40 PM Gary 200 psi
Seriously, You might outflow the F head... Jul 30, 2007 - 9:00 AM Kerr1 i thought u could crack the head w/ too much boost... Jul 30, 2007 - 10:08 AM x_itchy_b_x to many unkown factors to answer that question acc... Jul 30, 2007 - 10:21 AM NuclearHappineS why do you ask ?
how much power do you want to ma... Jul 31, 2007 - 5:13 PM Kerr1 o...well do u think stock pistons can handle 15psi... Aug 1, 2007 - 7:13 PM lagos QUOTE(Kerr1 @ Aug 1, 2007 - 8:13 PM)... Aug 1, 2007 - 10:10 PM
king_wsk QUOTE(lagos @ Aug 1, 2007 - 10:10 PM... Aug 2, 2007 - 5:20 AM cjh4l22 QUOTE(king_wsk @ Aug 2, 2007 - 5:20 ... Aug 2, 2007 - 10:53 AM Kerr1 so low compression pistons wouldnt b a bad way to ... Aug 2, 2007 - 6:24 AM x_itchy_b_x Low compression would be a good start if you wante... Aug 2, 2007 - 7:01 AM lagos QUOTE(king_wsk @ Aug 2, 2007 - 6:20 ... Aug 2, 2007 - 10:17 AM lagos QUOTE(Kerr1 @ Aug 2, 2007 - 7:24 AM)... Aug 2, 2007 - 10:22 AM x_itchy_b_x for WI on an NA im pretty sure they use an rpm ... Aug 2, 2007 - 10:41 AM lagos cali only gets 91. still, if your pinging on 91, ... Aug 2, 2007 - 11:57 AM Kerr1 for the 3sgte swap its like 4000 and thats if u do... Aug 2, 2007 - 4:36 PM presure2 QUOTE(Kerr1 @ Aug 2, 2007 - 5:36 PM)... Aug 3, 2007 - 5:28 AM Kerr1 QUOTE(presure2 @ Aug 3, 2007 - 10:28... Aug 3, 2007 - 6:29 AM presure2 QUOTE(Kerr1 @ Aug 3, 2007 - 7:29 AM)... Aug 3, 2007 - 11:53 AM lagos QUOTE(Kerr1 @ Aug 2, 2007 - 5:36 PM)... Aug 2, 2007 - 8:30 PM Kerr1 QUOTE(lagos @ Aug 3, 2007 - 1:30 AM)... Aug 2, 2007 - 9:39 PM lagos you do realize that most 3s swaps are not awd, rig... Aug 2, 2007 - 10:36 PM Kerr1 yea...i know....but if i did it thats how it would... Aug 3, 2007 - 6:25 AM quantumspec1 I'm going to have to agree with just snagging ... Aug 3, 2007 - 7:26 AM lagos whats your horsepower goal for the car? Aug 3, 2007 - 10:36 AM lagos troof ^ Aug 3, 2007 - 11:59 AM NuclearHappineS the stock compression ratio will limit you to 8-12... Aug 3, 2007 - 1:42 PM Kerr1 im plannin on doin head wrk to the new 1 im buying... Aug 4, 2007 - 12:29 AM Kerr1 the mr2t pistons wont fit if i bore it .020? i thi... Aug 4, 2007 - 12:38 AM lagos QUOTE(Kerr1 @ Aug 4, 2007 - 1:29 AM)... Aug 4, 2007 - 2:02 AM NuclearHappineS the 5sfe is the overbored version of the S block..... Aug 4, 2007 - 7:24 AM blckcelica95 Kerr1 i did the exact same thing that you are pl... Aug 4, 2007 - 8:47 AM presure2 QUOTE(blckcelica95 @ Aug 4, 2007 - 9... Aug 4, 2007 - 9:16 AM Kerr1 QUOTE(presure2 @ Aug 4, 2007 - 2:16 ... Aug 4, 2007 - 10:40 AM Gary QUOTE(Kerr1 @ Aug 4, 2007 - 11:40 AM... Aug 4, 2007 - 12:12 PM Kerr1 yea...i guess that would b pretty kewl...i think i... Aug 4, 2007 - 1:16 PM lagos QUOTE(Kerr1 @ Aug 4, 2007 - 2:16 PM)... Aug 4, 2007 - 2:15 PM NuclearHappineS My take on things...
Build the following :
5sfe ... Aug 4, 2007 - 3:25 PM NuclearHappineS I guess what I'm trying to say... imho the mos... Aug 4, 2007 - 3:38 PM Kerr1 yea...but im not spendin that much...lol....this i... Aug 4, 2007 - 4:04 PM Kerr1 sweet info....thanx a lot nuke. Aug 5, 2007 - 12:26 PM |
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