My friends brother is going to race a 240 against a Mustang, who do you guys think will win?

5.0 easy.
unless it's stock.

Hmm, i would have thought the 240....It has a Blitz Formula Turbo with Twin BOV's

well I've seen street legal 5.0's run mid 10's.
I've also seen them run mid 13's so it all depends.
and blow off valves are for engine safety, not speed.

I have seen many cars without BOV's, naturally they make back pressure, slowing the turbine = Less HP at the wheels.
its just sometimes i see kits without BOV's or bypass valves.

why would you need two BOV's with one turbo anyway?

why would you need two BOV's with one turbo anyway?


To be cool. :smokin:

I would assume one high quality BOV would do it.

Whoopsie, my bad, its a Single SSQ BOV, silly me!

ok, that makes more sense.

not having a BOV on a turbo kit, like you said, is a safety issue. you can seriously damage the turbo.

just b/c the kit doesn't have it doesn't mean you don't need it.

well, what's the power of the 240?
a 5.0 had 225hp w/ 300lbft stock, and for less than $500 this can be upgraded to about 250w/320lbft.
I'm not going to get into technical aspects of having more torque vs/hp, but the 240 has less.

an sr20det makes in the neighbor hood of 250hp...

this one will come down to power to weight...

but if you throw the same 500 dollars at the sr20, you'll be making far more hp, closer to 300hp...

damn you importers with your stock turbos!!!

haha...
sorry...

Who needs a turbo?
http://files.automotiveforums.com/gallery/watermark.php?file=/503/116286WFC1.JPG

imports.
that's who.

seriously though, almost any car would benefit from a turbo.

"Who needs a turbo?"


im sure that car turns great in the moutain hills? right? and it runs on pump gas right? and its daily driven right? oh ok no cus like ya know....

my car it like....runs 11s....turns...runs on pump gas....street tires, and i drive it everyday.....with just retuned rom....and completly stock engine internals....and the whole car including the engine cost was under 10k right? and you get 26mpg right? oh ok...just checkin...i like my 100%internaly stock 2.0 4 cyl engine thank you

and no ka24s are not better for drag. kas are capable but i like my sr thats why ive been playing with them for years.

Stock for a Engine Swapped SR20 i'd still have to give it to the 5.0.

Maybe if the SR turned up the boost or something, you have to be a little more clear on mods bro....

Stock for a Engine Swapped SR20 i'd still have to give it to the 5.0.

Maybe if the SR turned up the boost or something, you have to be a little more clear on mods bro....


im not going to tell you all of my mods but i will tell you the eintire cost of the car and the mods is just under 10,000$. If i told you all of my secrets that would be just plain retarded.

Me and my friend john do motorswaps on s13s and have been playing around with the cars for 4 years, before that it was cressidas and corollas for us.

A stock redtop sr20det swap with a manual boost controller total cost of rolling chasis and rpsport racing swap is around 4500$. The car will run low 13s with sticky tires. 3 inch exaust is included for about 250 more.

With an lsd , a fmic, bov, z32 maf for an additionaly 1000-1200 dollars added to that cost once again with some nice drs your looking at 13.0s-12.9s consistantly.

With a 500 dollar compressor wheel upgrade and porting job onthe turbo + a tomei or nismo fpr properly tuned your looking at conisitant 12.6s on drs.

Now throw in a set of 256 camshafts or even step 1 264s and and and aftermarket intake manifold + an afc for tuning and for another 1200$ or you so your looking at consistant low 12 range, + the car gets instant response, can be taken out to the moutains for twisties and toss up stis and porshes all day and gets about 24mpg on the hwy , 18-21 on the street....
all for about 7000 dollars, throw in some tien suspension and strut braces for another 1000 and your up to 8000 dollars. Then throw in a gt25r turbocharger and a set of 660cc nismo injectors, properly tuned your looking at another 1600$ and a whole second off your 1/4 mile time...

9600-10000 dollars you have a responsive, extremely well balanced and well handling car, that can run high 11s in the 1/4 all day long , on pump gas, with good milage and take out just about anything withing 30,000$ of its price range in the moutain roads...

i dunno maybe its just me or maybe thats why i like racing these stupid piles of crap...

-steve


www.RPSport.net

I'd have to say the SR20DET powered 240sx, it's a hell of a lot lighter than the stang, higher revving, and packs probably more ton-per-hp ratio

Hey All..as A Ford Guy I Love The Mustang But As A Paid Driver I Have Raced Aganist The Stang In A 240 Sx. We Have Beatin All Of Them From The Mach 1 To The Cobra. The Car I Run Is A 95 240sx With The Sr 20 Motor. It Is All Stock With The Only Upgrade Of A Bigger Intercooler. The Car Has Run The Best Of 12.89 At 107 Mph.the Only Time The Stang Has Beatin Us Is With A Blower Or Nos.this Month We Have Updated The Car With 555 Injectors And A T 28 Turbo.it Will Go On The Dyno This Weekend To See How Much More She Has.we Are Looking For The 12.50s Or Better.so If Your Near Redding Calif Come To The Track And Lets Play..........cya

You can talk potential all damn day. The mustang is going to have more torque and without an lsd will anialate the 240 on launch. If the 240 was mildly modded (boost controller, exhaust) it would be different, but i'd give it to the 5.0 even though Im an sr20 nazi. THe driver's will also make a huge difference though so who knows.

I would take the modded 240sx anyday...especially for 10000. Although i realise this is the drag racing forums i think people put too much emphasis on dragging, yes its fun but point and squirt isnt all that good on the twisties. Although for this race the mustang win stock vs. sotck due to its higher torque, the 240 with the same money would win and be able to turn around quicker at the end so would get in line quicker :iceslolan

i dont think that any car running in the 10s if it isnt bone stock is streat legal... at least not in cali i must say. Most 240sx with sr20s have around 250-300whp and about 270-300wtq, with that being said the 240sx weighs about 2600-2800lbs depending on year, i know for a fact the 5.0 are at least 3000 lbs.

The fastest street legal cars run in the 6s, 1/4 mile...

Another thing I have to say, I bought my '69 mustang for 5500, and am currently rebuilding the motor, (soon to be)twin turbocharged 351c v8. The rebuild budget is $3k, but I'm shootin for 2, and so far it looks good. My list of parts to order is hovering around $1600 including a block and other non-engine related goodies, like cal-trac bars and the like. I'm building the motor to take 15psi and rev to 6500, which should be good for around 750hp at the crank. I have a dynamic built C4 auto in it($950) thats built to take the power, a c4 sucks around 30hp. I have an aluminum driveshaft($350) and aluminum spool($200) in the 31 spline 9"(came with the car), so all told, I should have 700hp to the wheels, and similar torque. Peak hp will be around 6000-6500rpm, peak torque around 4000rpm. In the end, I'll have around $8500 in the car and it should be running into the 9s on slicks(okay, add another $400 for those). Oh yeah, its street legal. Sure it isn't great in the corners, but thats why I take my dad's Audi out for a spin every so often! I could always do a coilover conversion and 4link rear for another $3k and the car will handle like a demon and be just as good in the drags. Sure then it'll cost a little more, but then again.. its up there with the best looking cars of all time, it'll be able to hold its own on the strip and street. And yeah, its my daily driver.
I don't mean to be an asshole, I just want to show that a Mustang, or a camaro, or an audi, subaru, whatever, can hold their own too in the price vs performance arguement. I've seen lots of mitsu's that are very fast and were done pretty cheap. I've also seen a 80s thunderbird run in the 11s for under $1000 in the motor. http://www.toohighpsi.com
It all depends on how much work you can do yourself. I personally do everything on my car except block machining, tire alignment, and automatic transmission rebuilds. I have rebuilt autos before, but when dealing with a turbocharged v8, I'll leave the autos to the pros. If I payed someone to do all the work I do, I'm sure my investment would be well over $20k by now.

And yeah, its my daily driver.

Gas hog times 10

Hey, it runs on regular, I just can't crank up the boost. But I mean, whats the difference between 450hp and 700hp on the street anyways? I'd rather have 450hp. Its really not that bad... I got around 16mpg out of it before the rebuild, and I'm putting a milder cam in it this time, and its better built so it should be more efficient. If I can stay off the throttle, which shouldn't be too hard because the cops are always lookin for a reason to pull me over, I should get better mileage than that. I'm willing to pay the price of gas and have the power. Plus the '69 isn't the lightest car in the world(with significant lightening my car weighs in a hair over 3000lbs), and I know a lighter car would be ideal(either better gas mileage or faster, depending on what you want...), but shit. Its a '69 Mustang... its worth it.

yea, as long as u can stay off the throttle, shouldnt be a problem

Its a '69 Mustang... its worth it.
You said it bud!! Its a 1969 Mustang. One of the most beautiful, muscle cars EVER! Whats the 240 sx? You couldn't pay me to drive an ugly car from across the creek. That 5.0 is made right here in America, and your money is going right back to our good ole' US of A. We are supporting Japan the other way. Anyway, back on subject. Curves and gas mileage have no part in this, this is the drag forums, remember? I know that I could build a 5.0 under 10 g's and run faster than any 240sx. Those 4 bangers can only handle so much power(assuming it has a 4 banger?), turbo or not. They can't turn the rpms of an Indy car, so therefore I vote for America and the 5.0! :2cents:

i dunno about that, the JUN sr20det is turning at about 9500 rpm, i know a guy only running 544whp and running 10s in a 240sx still on stock bottom end.

9500rpm is a bit more than half the redline of an indy car.. I've seen late models run low-mid 8s on a stock cobra bottom end. you can buy a '96 cobra with the aluminum 4.6 short block that'll handle 800-1000hp for around $8000. Thats car and all - throw another 5 grand into it for new injectors, a turbo, a new EFI computer, suspension upgrades, subframe bracing and you have a 700+hp machine. Now if you want to talk old cars, back in the day you could buy a 658hp 427 SOHC cammer for a little over 3 grand, over the counter, at your local ford dealership. My uncle did it, put it in a '67 fastback. Too bad the car is gone now.. that motor and car would most likely be worth $60-100k today. Of course in those days, the motor cost as much as the car!
By the way, in my cleveland, I'm running a stock block, stock crank, and stock rods... pistons are aftermarket. I've done a little modification to all of them(1/2 filled block, polished/shotpeened rods, ARP wave-loc rod bolts, deburred block, micropolished/deburred crank, main studs w/ girdle...) but considering its all nearly 40 years old, I think its pretty damn good. Sure if it had overhead cams and modern block casting techniques and other new tech, it'd be a lot stronger and make more power... but thats what we got the 4.6 for, dont we?

Oh, and its not a 5.0.. its a 5.7. And not a windsor.. cleveland baby! the winningest ford engine of all time.