how much power am i lookin to make to hit 10.8's or so consistently on 24.5x8x13 slicks with a gsr tranny, ls motor revving to say 7,500 or so for now

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Response &raquo;</TD></TR><TR><TD CLASS="quote">how much power am i lookin to make to hit 10.8's or so consistently on 24.5x8x13 slicks with a gsr tranny, ls motor revving to say 7,500 or so for now</TD></TR></TABLE>

Well atleast you mentioned what gearing you will be using. There are many other factors too, chassis? weight? track elevation? and all those stupid things people bring up.

 

300-310 hp is enough

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">300-310 hp is enough</TD></TR></TABLE>

at what weight? I dont think you can run that fast with that much power esp. with only taking the car to 7500rpm

 

quick guess would be about 500whp on slicks with a lightened chassis. may need to look at 600whp for sure. though.

 

lets see.........

1550 + driver (about 220) = 1770

325 hp

good for about 10.02-10.06 @ 134 mph.

RPM's mean nothing.

 

yeah.. it really depends on weight. my new car will weigh 1900lbs with me in it.
ill need about 300whp to go 10.9s

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">lets see.........

1550 + driver (about 220) = 1770

325 hp

good for about 10.02-10.06 @ 134 mph.
RPM's mean nothing.</TD></TR></TABLE>

Who did that? Thats insanley fast for that kind of power. And if you think rpm's mean nothing...wow. Theres way more to figure out like rpm and gear ratios vs power made and at what rpm it was produced at. I personally dont beleive a car with only 325hp with almost 1800 pounds of weight went that fast. Even the mph is too high for 325hp.

 

it all depends on the car. at nhra weight in the all motor class id say about 270-280 with the right gearing.

street fwd car at nhra id say about 500 with the right gearing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ninesecrx &raquo;</TD></TR><TR><TD CLASS="quote">

Who did that? Thats insanley fast for that kind of power. And if you think rpm's mean nothing...wow. Theres way more to figure out like rpm and gear ratios vs power made and at what rpm it was produced at. I personally dont beleive a car with only 325hp with almost 1800 pounds of weight went that fast. Even the mph is too high for 325hp.
</TD></TR></TABLE>

where you been earl? thats what bisi runs and he is prolly making a little over 300whp

i dont think he is quite that heavy. i think its like 1550 w/ driver

 

Which once again, gearing has a direct effect on rpm and where the power is made and applied to the ground.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MackSpeed-616 &raquo;</TD></TR><TR><TD CLASS="quote">

where you been earl? thats what bisi runs and he is prolly making a little over 300whp

i dont think he is quite that heavy. i think its like 1550 w/ driver</TD></TR></TABLE>

Not at that weight he doesnt...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ninesecrx &raquo;</TD></TR><TR><TD CLASS="quote">

Not at that weight he doesnt...</TD></TR></TABLE>

anyway.. back to the point. 280-300 should do it for the guy asking the original question. depending on weight ofcourse.

 

ninesecrx, ask Bisi.

I did.........

 

yup, thats who I figured you asked. And he does not weigh near 1800 pounds. Plus we know theres way more to bisi running those times, like gear ratios, rpm shift points and let alone suspension mods. If he makes that kind of power, he puts it all to the ground. The average guys car is not going to run like that...and at that weight.

 

10.8 consistent in a street car you would need about 400 hp 350 ftlb turbo charged @ 2300 lb, turning 9000 rpm. all motor you will need 240 hp 160 ftlb @ 1700 fully tricked out all motor car turning 10,000 rpm. this is with a gsr transmission. but turning 7500 i would say alot more hp will be needed. Good luck. if you do it with less keep us posted.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">lets see.........

1550 + driver (about 220) = 1770

325 hp

good for about 10.02-10.06 @ 134 mph.

RPM's mean nothing.</TD></TR></TABLE>

RPMS mean nothing huh. why dont u take your car to the track and shift at 7.5k with a h22a in a crx that weighs 1690 with driver making 225 whp, then take the same motor take it to 10k and see what the difference is. btw it took from 12.6 to 11.8

 

rpm's don't mean anything.
If an engine is optimized to make power at 7500 rpm and the gearing is there to support it, why spin to a higher rpm? Higher RPM = higher stress.

Of course if your engine makes power at 8500 and you shift at 7500 you will be slower. Taking an engine that makes power at 7500 rpm and shifting at 8500 will make it slower, unless the gearing is not optimized.

It all boils down to selecting the right mix of components.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TEAMGENDAI &raquo;</TD></TR><TR><TD CLASS="quote">10.8 consistent in a street car you would need about 400 hp 350 ftlb turbo charged @ 2300 lb, turning 9000 rpm. </TD></TR></TABLE>

This is right on the money in my opinion. BTW, this is from my OWN personal experience..No bench racing here

 

Street hatch 2600lbs with driver, 520whp 10.88 redline at 9krpm.

art

 

with our team car, we run 10.8 at 134 with an LS/VTEC Turbo, 380 HP and 350 ft.lb. there's a video of one run on our website. redline is at 8500, stock LS tranny, m&h tires, 24.5x8x13...this car is capable of a few more tenths off at this power level, maybe 10.7 or so. car has not been weighed, 95 ls integra with 8-point chromolly cage.... http://www.agturbo.com

 

if i remember, your car is completely stripped.

 

basically you need app/over 130mph trap speed. Faster or slower then 10.8 its all relative to the driver/set up..... but, app. 130mph is what it takes in a turbo FWD street car on 24-25" slicks.

 

sorry i forgot to mention weight
EG hatch, car will weight approx 2300 with driver, maybe 2250 if i gut the interior
i dont know track elevation, but its pretty close to the great lakes in terms of elevation, so if the great lakes are @ sea level, then the track is at sea level (st thomas dragway in Ontario Canda)

i know im a retard, but i wont be using a cage (street/sleeper, i dont mind getting kicked out after 1 pass ) at least i wont be using a cage right away...

i was thinking at least 500 whp...


i did 11.95 @ 118 on an LS tranny @ 2300 lbs with 22x8x15 slicks just recently making about 310 whp, and 280 wtq (guessing...i made 300/270 on 12.5 psi, the 11 was done on 14.5 psi)

i cant afford headwork to the ls head, so i dont think theres any point revving past 7,500 from the dyno charts i've seen for stock LS's...only reason why i'd rev so high in the first place would be because i have a block girdle and forged rods

i guess i should bring this back up after i have a dyno chart in the spring, but thanks for the guesstimates

 

i posted this in the FI forum but it either moves too fast, no one wants to help me cuz the questions are obvious (to them), or im just a loser but if someone could help me out with this too i'd appreciate it


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Ok, so right now I have a Max-Rev kit with hondata s200 on a stock LS.

I am going to be using a built bottom end...

i'll also be using 850cc or greater injectors, i have a walbro 255 pump and vortec fpr right now.

my question is mainly fuel based: at what point do I re-do my fuel lines (and rail) ? i hope to be making near 500 whp or so in the near future w/ a bigger snail... and is 850cc big enough? and is the walbro adequate?

also, i'm on a 57 trim, 60comp, 63 exhaust t3t4e right now..i dont think i have the cash to pick up an sc61 just yet...approx what psi/hp rating are these good for? i'll
be happy with "just" 400 for now

one more thing, i am using 2.25" i/c piping and a maxrev intercooler...should i step up to 2.5" piping and a better i/c or do you think the maxrev ic will support this ..</TD></TR></TABLE>