racing a 240sx?

Discussion in 'Small Block Tech' started by lespaul13, Jun 17, 2007.

  1. lespaul13

    lespaul13 Well-Known Member

    Hey guys. someone wanted to race me.:Dou: . and i told him nah. ive heard CLAIMS...his claims. :Do No: . that his car 240sx, is SUPPOSEDLY. twin turboed.and runs 13s ? huh? and this car has no outter body work. so i dont know if he is one of these smart teenagers that puts the money straight into the engine.ive never actually heard the car. just got a random phone call from my ex's new guy? what? :Do No: .

    I backed out of this one saying,im having some trouble with it now,and im putting it into the shop,and it would be there a while,cause im getting a superchager(yeah i wish). but i have just sold my dirtbike.

    I have about 1000, to sink into my engine:TU:. its a 350. it has a low compression aftermarket cam(not to big over stock).A shift kit that im not sure which it is.I need to get the build sheet. A flowmaster exhaust system. Im pretty sure, I could burn him.:3gears: but Im not going to be cocky about it. BUT with him calling me and acting like a total punk about it. When I dont even know the guy. But yeah, anyone have any idea what my car WILL do? Also I was thinking about using the money to put a set of headers on my car, but I dont know if there is something else that will help my car more than that.

    thanks guys
     
  2. 71GS455

    71GS455 Best Package Wins!

    What do you have for a rear?
    You may get more bang for your buck starting there. What good is more power if you can't get it to the ground and can't make the most use of your power band?
     
  3. SMOKIN_455_SEDA

    SMOKIN_455_SEDA Well-Known Member

    give me a PM, ive decided to start parting out my car and have performer parts to sell. Including 10.25:1 compression pistons.
     
  4. lespaul13

    lespaul13 Well-Known Member

    :Dou:
    good point.
    but me being new to this car thing in general.
    and dont have a build sheet.
    im gonna assume its stock.i will have the build sheet tomorrow.
    is there a way i can figure it out with out it? Especcially with me so new at this.
     
  5. sean Buick 76

    sean Buick 76 Buick Nut

    I think your getting a little carried away there. Don't tear your car appart to try to beat a ricer. Focus on tuning and get a John Osborne Q jet done for you! Next would be headers and mandrel bent duals and maybe rear end gears depending on how much highway driving you plan to do.
     
  6. freak6264

    freak6264 Myotonic when confronted

    You're ex's new guy? Tell him something about his new girl that he doesn't know and that'll shut him up. Other than that, his twin turbo 240, probably isn't, unless he's the kinda kid that has 25K to do it. If his car was set up by me, with twin turbos, and ran 13's, I'd give him his money back. Go run him. He has a 240 with an exhaust.
     
  7. lespaul13

    lespaul13 Well-Known Member

    yeah. you're right Sean, but what do you mean "get a John Osborne Q jet done "... im assuming rebuilt carb? ... and as far as rear end gears go. not much. this car is gonna take me to school and work. and around town once in a while. but besides that im gonna be riding with my best friend everywherre. so not to much gas burning for me hopefully... and can someone explain the compression & rear end ratios (i assume its a ratio)...
    im just starting out so im trying to aquire as much knowledge as possible. and as far as the race goes. im gonna try to spook him a little, by telling him i wanna see his car, i wanna know the specs ...blah blah blah. and if he wont. im gonna guess he is bluffing. because he is about my age.so i dont think he has all that in it. and yeah again,you are correct Sean no reason to tear up my car over it. if he keeps talking i'll just kick his :moonu: ... i would proudly take an :moonu: whippin' by a rice owner and know my car would crush theirs anyday. than tearing it apart for one race. :pp ... because... I LOVE MY BUICK :TU:
     
  8. lespaul13

    lespaul13 Well-Known Member

    ahahaha... that gave me a boost of confidence. and about how much does it really cost to twin turbo something? because i know he doesnt have thousands just to put into his car.because i asked him first what it would do in a quarter.. and he said 13.. and then after i said i was gonna super charge he said he was twinned. and i know people around here who sink alot of cash straight into their rice. and its kind of funny. on guy has a super charged civic(strret light runner ONLY), he wants 10,000 for. and its got 211 HP. :Dou: . and i wouldnt want that car anyway, its black with orange wheels, i still havent figured if its a dukes of hazzard tribute, or he likes halloween ? im only 15..but whats the deal with most teenagers these days.. isaw on a forum the other day that said cars really didnt get powerful engines until the 1990's...huh?... :boring: ... stupid teenagers..:Dou:
     
  9. freak6264

    freak6264 Myotonic when confronted

    I don't know where you're from, because it isn't in your signature, but asking how much it cost to twin turbo something is a wide open question. To do a 240, with twins, in the United States, the right way, would cost around 20K and run 10's, all day. Don't ask me how I know, I just do. If you're 15, then you don't need to worry about racing (I'm assuming this would be a street race, not cool)- worry about building the car and learning about it, and cars in general. That way, you can avoid losing brain cells talking to guys like the one with the 240. Wait a few years, save you're money, and put it into old American steel- that will never go out of style.
     
  10. lespaul13

    lespaul13 Well-Known Member

    yeah good point... so anyone know a link so i can learn about the compression ratio(i believe?) and gear ratio? yeah, honestly im not even gonna give him the joy of knowing he talked me into racing... but can someone explain the Q-jet thing, and offer some suggetions of headers and smaller things to do to get this car where it will blow the doors off rice. and any other street car for that matter:cool: . this car is quick now..but why not make a beast of it?:TU:
     
  11. whamo

    whamo 454 71 skylark custom

    Nitrous :3gears:
     
  12. 70 gsconvt

    70 gsconvt Silver Level contributor

    I'd tell the guy that he has enough problems having your ex as a girlfriend. And you don't want to make him feel any worse by beating up on his car too. Don't go beating up on your car just to take out this jerk. He's trying to flex his car's muscle. Probably to make up for a "shortcoming" somewhere else. Guys who drive Buicks don't need to brag. We KNOW we already have the faster car.


    If you have to, a 100 HP shot of nitrous will knock a second of your quarter mile time. It'll be very cost effective. You're not tearing into anything else. And you can always sell the system after you kick his car's :moonu:. Also, strip all the excess weight out of the trunk like spare, etc. Smaller diameter rear tires will also increase your rear axle ratio and help off the line performance. If your drivetrain will stand up to it, get a better torque converter for the trans. Perhaps a 2200 to 2500 stall.

    That said, an exhaust system is always a great first step. Then having Osborne re-jet a carb for performance for you will help also. Don't forget the ignition system to fire all that extra fuel. Then you start getting into more money with changing the rearend setup, suspension tricks, weight savings, etc. You can probably spend about $1000 and make the car perform pretty well. After that, it starts to get expensive. No one ever said that going fast was cheap. And make sure your brake system is up to the task of stopping the car too!
     
  13. 71GS455

    71GS455 Best Package Wins!

    Put blocks in front of the front tires and then jack up the rear so that the tires hang free. Then put a jack stand under each axle tube. Do NOT assume that the jack will hold it - you're only asking for trouble.
    Put your car in neutral and release the parking brake. The blocks are there to keep the car from wanting to roll forward. Once you've done this, spin one tire in a forward direction. If the other side also moves forward, there's a good chance that you've got a limited slip differential (posi). If the other side goes backwards, then you're probably safe to assume that you don't.

    Next have a buddy slide under the car and make a mark on the driveshaft. I like doing it around the 3 o'clock position. That way if you have a ratio around 2.56, the mark won't disappear up top. Now make a mark on the tire in line with some known point like the bottom of the fender. Slowly rotate the tire one complete revolution while your buddy counts how many times the driveshaft mark comes and goes. This is the ratio of driveshaft revolutions to tire revolutions, which is essentially your gear ratio.

    If it goes about 2 1/2 times around, then you've probably got 2.56 gears. If it goes about 2 3/4 times around, then you've probably got 2.73 gears. If it makes 3 revolutions, then you've probably got 3.08's. I think there were 2.93's some years too.

    Anyhow, this will get you in the ballpark.
     
  14. 71GS455

    71GS455 Best Package Wins!

  15. 70aqua_custom

    70aqua_custom Well-Known Member

    I hope too many dudes here don't get pissed about what I going to say....

    I drove a mildly modified 1970 350 Skylark for right around 70K miles. No, it wasn't the slowest thing out there but it's just wasn't cutting it with what the factories are putting on the streets today. With a stock 350 you're going to lose a lot. I'm going to guess you'll do 16-17 seconds in the quarter mile stock. Yes you can do a lot to a 350 but it will take more cash than you have right now. Your absolute cheapest bang for the buck is to get your hands on a running early 455, preferably a 1970 and swap out the 350. As long as it runs good you'll be able to beat a lot more ricers and you can leave it bone stock. If things go right, it'll be cheap and reliable and the mileage isn't that bad if you can keep your foot out of it (yeah right!). I bet you could do it for under a $1000.00. Then later if you're still into Buicks you can build the 350 or the 455 the way you want. I guarantee you'll have a lot more fun with a 455 for now. Swaping an engine is cheaper and easier than making a stock engine make more power.

    Just a thought. :Do No:

    Since you're 15....Attention Disclaimer! Street racing is illegal and dangerous and may cause injuries, loss of driving privileges, broken cars, serious debts, death or any combination of the above.
     
  16. SMOKIN_455_SEDA

    SMOKIN_455_SEDA Well-Known Member

    or just swap in a 350 chevy and kick the 350 and 455's butt :Comp: :Comp: :Comp:
     
  17. ralph sr.

    ralph sr. Well-Known Member

    running a 455 does sound like the most logical choice for now, till u can build up the 350. and i also 100% agree, NO STREET RACING:rant: its just not worth it. too many young kids out there getting hurt or worse.

    hey jon, did u just use the C word?!!:Brow: :TU: good luck lespaul 13.ralph sr.
     
  18. NixVegaGT

    NixVegaGT Well-Known Member

    OOooo, Jon. Calllin down the rath! LOL!

    OK. It is VERY likely he's just spoutin **** about a twin turbo. Twin Turbo... What a gimic. You actually make less hp with two turbos on an engine this size than one. It's kinda like saying "Balanced and Blueprinted" back in the day. LOL! You guys remember that? Every Camaro drivin chevyhead with a stock engine had it "Balanced and Blueprinted".

    http://www.youtube.com/watch?v=3Ry6Cf4EHI0
    Go about halfway through where he's talking about his ride. FUNNY ****!!

    On cost. You can actually turbo a car for pretty cheap. It just takes some fabrication know how and savvy shoping. I had a Dodge Omni turbo car that made 250hp for $1600. It took a lot of careful planning and wrenching. It is highly likely that a guy that starts spountin off that it's got a twin turbo and does 13s didn't do this work...

    OK all that said: I'm with Andy, If your running a stock Buick 350 it's not going to match up. That's my guess. Unless he doesn't have a turbo setup. Here's a link to a stock 240 engine: http://en.wikipedia.org/wiki/Nissan_KA_engine#KA24DE

    I would be like: "WOw that sounds pretty tough. Pop the hood and let me check that out." He'll make up some excuse not to show you. Then you know you've got him... You could just race him for the hell of it though. Let's say you loose. You'll live. Are you racing for Pinks or someting? If not just be like: "yeah you'll probably beat me but... why not." Just put some time in to get used to your car and how it performs best. Load the drivetrain at the line by holding the brake and give it a little gas just before launch. You could be surprised how well you do. Half of racing is driving right.
     
  19. sean Buick 76

    sean Buick 76 Buick Nut


    Why on earth are you on this site still then? Go for an inferior oil burning boat ancor of a chivy motor if you want....
     
  20. lespaul13

    lespaul13 Well-Known Member

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