racing times

[burnout 180]

I'm trying to build my car to drive to school through the week and race on the tracks on the weekend. In the class i want to enter they are running 7.4 that is the 1/8 of a mile. I wanted to know if its posible to get this kind of times with the CA. Is 7.4 in a 1/8 of a mile fast?

What modifications should i do too get fast enough too compete with those kind of times?

i currently have :1) t3/t4 turbonetics turbo .50A/R and .48 exhaust housing .50 trim2) Custom ex. manifold3) tial wastegate4) 3" down pipe5) braided oil lines for the turbo6) ssautochrome intercooler kit7) Joe P MBC8) HKS BOV9) HKS intake10) 3" Full cat-back exhaust11) VLSD
Modified by burnout 180 at 9:20 PM 9/8/2006

[ccasey645]

Its fairly quick, check out the link stickyed to the top of the ca fourm. There is someone running 7.31 in the 1/8th and in the 1/4 he ran an 11.5 at 123mph. Some guy from Austraila, though he says he's running leaf springs, so I dont know if the motor is in a s13 or not. But with the setup you've got so far I'd say your faily close to being really fast. Talk to Overboosted180, him and Dee just put down 383hp to the wheels Either way are you running some sort of fuel and ignition correction for your ecu (apexi, haltech, romulator )? If you dont have them already my .02 would be some bigger injecotors, bigger fuel pump, fuel pressure regulator, standalone engine management, lsd, strong clutch, and im not sure what the stock bottom end will hold up to exactly, but if you've got the money some pistons and maybe conecting rods. And some dyno time

[float_6969]

ccasey645 nailed it. You're pretty much setup from a mechanical point of veiw, though you are currently lacking in the fuel department. Definatly need bigger injectors, Walbro fuel pump, some sort of fuel pressure regulator, and some sort of engine management. I would STRONGLY suggest you stay away from chip tunes and SAFC at the level of power that you are trying to make. I feel good about you doing it on the stock bottom end, but not w/o standalone, at least not safely. A set of forged pistons are certainly not something that would hurt you in any way shape or form, but also not something that I think you need.

[burnout 180]

The reason I stopped at the mechanical mods is because I honestly don't know where I should go next. What do you think is the best option for me as far as fuel management seeing that I don't have access to a dyno because we don't have one on this island.

I know about the z32 MAF and chipped ecu option. And I already have a chip burner, z32 maf, and an apexi afc all I have to do is socket my ecu and buy an eprom chip. I didn't do this yet because I don't know if this is a good option for me. I just need an experienced suggestion.

[BACARDI_DWB]

fuel and tires. most of everyone in that times list really can't get off that line in any sort of manner. i am sorry guys but if your not pushing 1.8 in a 60' in a RWD car then someone else should drive your car. AND i am talking about drag radials not slicks with some slicks you should easily be in the 1.6's. and i AM speaking from experiance 1.8 60' in a FWD car. has nothing to do with how much hp your car has to get off the line. its all about the "feel" of the car/clutch/gas pedal. learn to drive your car and you will get there. if your trap speed is insanely high then you know your 60' is suffering cause you have plenty of hp but you are spinning off the line and catching up in the backstreach. but if your trap speed is low and your time is fast then you are right on track. if both are low then you can launch harder off the line. you want your tires to squeek a little so you don't bog (and for the sake of your clutch/drivetrain) but not roast them down the track. many times a 500hp car lost to a 300hp car due to traction issues. hope this helps and if you have any questions about track time and stuff go ahead and ask. i lived a block away from a drag strip my entire life.....had plenty of track time...

[BACARDI_DWB]

oh and i am not sayin your current car can run that but if you practice now with your current setup on your 60's. when you get more hp then you would be ready to post those 11 second time slips. i know plenty of people with 11 second cars but cant break the 13's. i was one of them until i learned how to drive my car. anyone can get a good 1/4 mile time with a fast enough car but its what you do on the 60 that really makes you shine and anyone who says different hasn't been on a track

[burnout 180]

oh and i am not sayin your current car can run that but if you practice now with your current setup on your 60's. when you get more hp then you would be ready to post those 11 second time slips. i know plenty of people with 11 second cars but cant break the 13's. i was one of them until i learned how to drive my car. anyone can get a good 1/4 mile time with a fast enough car but its what you do on the 60 that really makes you shine and anyone who says different hasn't been on a track

I agree that track times don't rely only on your engine power but you do need a certain amount of power to get in that time bracket no matter how good your suspension, traction and driving skills are. And that is what I am trying to do get my engine in shape to compete with 7.4seconds in an 1/8mile track.
Modified by burnout 180 at 7:16 PM 9/10/2006

[BACARDI_DWB]

alright sorry you thought i was off topic. yes the CA is capable but in that same sentence i will say are you. and racing 1/8th mile is just the same as racing the 1/4. and even more so you need to have a really good time in the 60' since you can't really make it up in the back strech. so i will say you can over power your car but it really wont get you there. you have a large enough turbo. work on your electronics i.e. piggyback/ timing along with fuel and you will be fast.

at the end of the day what i was trying to say is you can strap 1000hp in a car and you still won't beable to get down the track. its all about how well you launch. and 7.4 is a pretty fast time to get. you are going to need to be in the 11's for those who race 1/4 mile. that is fast. that is not just a piggyback away if you plan on overpowering your way down the track

oh and here you go its not always right but it may help

http://www.fastnuf.com/QMC.html

and on average every 10mph in the trap on a 1/4 mile is about 80=100hp to gain. good luck on that 7.4, getting into the 8's is hard enough to get

[float_6969]

No dyno hunh? That's kinda rough. I would DEFINATLY plan on some sort of wideband with dataloggin software. That's the only way you're going to be able to tune it.

And as BACARDI_DWB was saying, especially in the 1/8mile, you need to practice/perfect your launch.

[burnout 180]

So float_6969 what you are saying is that although I don't have access to a dyno it is still possible to tune my car like those of you who do have access to a dyno this is great. So what I will need to buy is:

1) Wideband with dataloggin software2) Standalone3) FPR4) 680cc injectors5) Walbro fuel pump

Is that all I need as far as fuel and tuning components?

My only problem is deciding which standalone I should get and which wideband. There are so much options that I have no idea what I should get. I read the stickies on engine management for the ca18det and I still don't know which one I should get.

If you were in my position exactly what would you buy. If you could tell me the name of the exact product or even better maybe a link on the product that would be awesome. I feel that if I can get advice from someone who has experience with these things and the CA then I have a better chance of getting the right things the first time.
Modified by burnout 180 at 4:56 PM 9/10/2006

[BACARDI_DWB]

well for the money the mega squirt seems to work well but my personal choice is going to SDS

[burnout 180]

Is SDS universal or are they engine specific? Because I can get a used setup but it's off of a SR so I wanted to know if it will work on my ca.

It a SDS EM-3F system for 4Cyl, 1 Bar MAP sensor, Fast Idle kit, and all supporting wiring.

Here are some pictures of it:

[img=http://img239.imageshack.us/img239/7375/sds1bz1.th.jpg]



Will this work and if so what additional things will i need to get it to work on my CA (sensors etc). They are selling it for $500 do you think i should get it?

[dash]

not to discourage, but from the nature of your questions, you sound like a 'long way from home'.

Easier if ca18 is swapped into a 1700-2000 pound hull. Check out the 11.1sec kp61 swap in the 1/4 mile sticky. Surprisingly simple recipee;Good turbo match @16/17psi only, nice displacement to weight ratio, seat time, gearing, traction, standalone/ good tune - all on a bone stock ca18. That would make u king of your domain.

For the heavier s13, you'd need to push the motor harder.Most likely on race fuel.Will the stock head gasket tolerate 24+psi ? Metal HG + studs ?Can you make enough power without proven cams... at what cost ? Rod bearings in a tired old motor probably end the party.

7.4 is ~low 11sec. Thats a fast street car. Not begginer territory and a tall order for a street ca18 s13.

Find out what the 7.4sec car uses.If he has a better displacement to weight ratio (most likely), you'll need *more* of everything he uses.

Lucky for you..... if you have no dyno, neither does he.

good luck

[float_6969]

No, SDS is not vehicle specific. That setup will work on any 4 cylnder engine. http://www.sdsefi.comInnovate Motorsports has a wideband setup that will also datalog. http://www.innovatemotorsports.com

PLEASE read Dash's post. He's nailed it dead on here. A mid 7 second 1/8mile car is a FAST street car. Nothing but exotics will run anywhere near that fast from the factory. Heck a Z06 Vette won't run that, and that is a pretty quick car, trust me.

I'm not trying to discourage you, I just want you to be aware of what you're getting into. This isn't something you're going to slap together and be ready to go.

[burnout 180]

No problem i'm not a hardcore dragster its just something i want to do as a hobby and sadly we don't have any other choice but to race on the streets or drag and i think that racing on the drag track is safe. What i'm trying to say is that my car is just a hobby and i enjoy modifying my car to get better performance and more power. As long as i'm having fun i'm cool. And dash you are so right me and all others on the tracks don't have access to dynos so hopfully i can get the upper hand by finding a way to tune without a dyno.

Oh and thanks for the links float_6969. What about that used SDS setup you think its worth the $500 or should i buy it brand new because the used on is older model?

[float_6969]

I'd get the used one. There isn't THAT much difference between the EM4F and EM3F. The major difference is that the ignition timing is easier to program on the EM4F.