370 f1a
370 f1a Looking to get more out of my setup. I am thinking about upgrading my heads or may be something else lets hear what you think.
370, -11cc pistons, afr205 heads 61cc, Victor Jr intake port match to heads, 4150 throttle body, pro extreme velocity carb hat, 1 3/4 headers with texas speed true duals , lil john cam, garrett air to air intercooler, f1a 16psi procharger pulley to 74,700 at 7200rpm, th400 trans with circle d converter 5300 shall, 9 inch rear with 3.50 gears, race weight of 3740. It made 731hp 609tq race gas c16 676hp 586tq on pump gas this was on a mustang dyno
370, -11cc pistons, afr205 heads 61cc, Victor Jr intake port match to heads, 4150 throttle body, pro extreme velocity carb hat, 1 3/4 headers with texas speed true duals , lil john cam, garrett air to air intercooler, f1a 16psi procharger pulley to 74,700 at 7200rpm, th400 trans with circle d converter 5300 shall, 9 inch rear with 3.50 gears, race weight of 3740. It made 731hp 609tq race gas c16 676hp 586tq on pump gas this was on a mustang dyno
Last edited by stmz28; Jul 5, 2014 at 08:26 AM.
I am with this guy. People pick up HP on N/A setups going with larger than 1 3/4 headers probably would get you some HP.
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TECH Enthusiast
Joined: Jul 2008
Posts: 577
Likes: 1
From: League City, Tx
I have an F1R and run the same MPH as you do at 3650lbs... I recently tightened the converter and figure it will go 153 mph but... that's about it... Spinning the R at 69k rpms.
X will be my next move... Less parasitic loss then an R... More power, less boost needed... OR way more boost if wanted..
I don't think you would gain much if anything going to a C or R... On paper they look to flow more air and support more power but...In the real world, I don't think they make much more power if any...
I have an F1R and run the same MPH as you do at 3650lbs... I recently tightened the converter and figure it will go 153 mph but... that's about it... Spinning the R at 69k rpms.
X will be my next move... Less parasitic loss then an R... More power, less boost needed... OR way more boost if wanted..
I have an F1R and run the same MPH as you do at 3650lbs... I recently tightened the converter and figure it will go 153 mph but... that's about it... Spinning the R at 69k rpms.
X will be my next move... Less parasitic loss then an R... More power, less boost needed... OR way more boost if wanted..
How many f1x blew up this weekend
May want to look at this thread below. Looks like you might need three, for one race weekend. They are still updating them also as people return the blown up ones.
How many f1x blew up this weekend
How many f1x blew up this weekend
What I was looking to do is buy tfs235 or afr245 heads but if its not going to pick up much power its not wroth it.
Last edited by stmz28; Jul 5, 2014 at 09:46 AM.
Sorry op for cluttering your thread. Back on topic
I have the TFS 235s on my 370 and it made 875 @ 16psi, th400, etc. I think you'd pick some power up with those and a bigger header. Sell your AFRs/headers to buy most of the stuff. Just my .02
I don't think you would gain much if anything going to a C or R... On paper they look to flow more air and support more power but...In the real world, I don't think they make much more power if any...
I have an F1R and run the same MPH as you do at 3650lbs... I recently tightened the converter and figure it will go 153 mph but... that's about it... Spinning the R at 69k rpms.
X will be my next move... Less parasitic loss then an R... More power, less boost needed... OR way more boost if wanted..
I have an F1R and run the same MPH as you do at 3650lbs... I recently tightened the converter and figure it will go 153 mph but... that's about it... Spinning the R at 69k rpms.
X will be my next move... Less parasitic loss then an R... More power, less boost needed... OR way more boost if wanted..
Ok I could see the f1c not making much more power but if I got a f1r it should make like 5psi more so maybe around a 100hp right?
Has any one tried the f1c 10.5?
TECH Enthusiast
Joined: Jul 2008
Posts: 577
Likes: 1
From: League City, Tx
I'm telling you an F1R is a HP hog...they are very hard to turn.... Spin one by hand and you'll see what I mean.
FYI...Steve Morris "dyno tested" an F1R....(on a rig he built to spin a blower and measure HP)... At max impeller speed(68k), and 23 psi restriction, it took 250 hp to turn it...
Will you gain some power with an R over an A? Maybe... Is it worth the hassle and expense, probably not.. Same thing with heads.... I have a $2700 set of heads on my car and I'd be willing to bet it would make the same power with some ported 317s....or real close to it..
Reducing the parasitic loss will put more power to the tires without working the engine any harder with more boost.
That's why you see YSI cars running faster mph and dynoing more hp then most any of the F1 series blowers, even though they are smaller and flow much less air....Yet they'll make 100hp more on average when maxed out..
F1X is the answer... That or a big single turbo...