Hello,

As many of you know, I just got my SI back from my race mechanics who did a bunch of stuff and kicked up the whp to a little over 300 and the torque to the 215 range. I am finding my current tires (Goodyear Eagle F1-GS D3 Tires 235/40/18), tend to spin more than I like when they are cold. On Sunday when I took off from the house and hammered it through 1st, 2nd and 3rd, getting on the freeway, the wheels slipped in all three gears. This problem went away after driving for about 20 minutes so I am assuming it had to do with the tires being cold and hard.

Is there a better choice for tires, that will reduce this slippage when cold, or should I just assume that this is the way is?

Thank you

 

Do a burn out before taking off. Are you running summer tires?

 

Tire blanket/warmers.

But seriously, just give them a chance to warm up like F1 cars do, or just drive for a few minutes.

 

just assume thats how it is. welcome to the world of well powered FWD. those eagles are pretty top of the line as it is, so its going to be difficult to find a better tire at that level. basically anything comparable is going to net u the same results, short of R compounds.

 

Thanks you responses. Much appreciated.

 

Get better tires, Eagle F1s aren't that sticky. 300whp you're going to need some drag radials even when they're cold they'll stick.

 

Did chargedSi edit his post because when i read it, it did'nt sound anything like what you wrote.

 

nitto 555r!!!!!!!!!!!!!

 

Click the link in his signature (go to his garage). Its his intro statement that was quoted. 70k+20k car = 90k = Nissan GTR. I definately would've gone another route.

Oh ya: What suspension are you running? My brother had the same problem on his car until he got racing suspension, hes running over 300hp and he doesn't skid anymore

 

Anyone watch the Nascar race yesterday?

Speaking of cold tires, Kurt Busch ripped his front right tire right up the middle, from driving it too hard when too cold.

 

Now that beast eats through tires.

That's beside the point, tires should be one of the first things modified when building up a car.

 

Read the parts list and the $70K includes the cost of the car. If you wish, I can produce receipts? The car is not a daily driver, it is not used to merge into traffic on regular basis. However, on the occasional Sunday morning, I do like to take it for a run.

 

The tires were the first thing. When the car was only pushing 260 WHP and 173 torque, I did not have this problem. Goodyear Eagles do not come stock on the car.

Wow, ask a question and watch the haters come out. Christ, I was only looking for some suggestions on different tires.

 

The $70K includes the price of the car. The cost of the car was around $26K. I bought one of the first 2006 SI's that were released and I paid the $5K over MSRP. I have also done this work over the last 3 years. I bought a car to mod, not a car the does not need mods. I wanted something to spend time on and take pride in.

 

For you haters out there, none of you have any idea who I am, or what I have been through with my family or my children. This car is what keeps me sane sometimes. Hope you never have to face what have over the last 18 years. No, I am not 18, I am 50, so I have little more experience in life than you do.

Whenever I have posted on this forum, I have tried to be helpful. Granted, I am not an expert an anything regarding these cars, as I am sure none of you are either.

I chose to spend my money the way I chose to the spend it. I build the car the way I chose to build it. If you don't like it, that is your problem.

For those who posted something constructive, thank you.

Mod, please lock the thread. No use giving the children anymore reason to act like they have a clue.

 

Did you look at the performance on those tires before purchasing?

If you're looking for better cold grip you won't want high performance summer tires..... I had them on my Accord and had no issues but that was because it WAS in the middle of summer and never dipped below 70. So save for buying new tires, why not just *let* them warm up prior to ripping on it? That just seems like common sense to me.

As to the cost of the car I have an inkling that includes labor as well

 

Yes, I have done none of the engine work myself. I also did none of the AV/Video work either. I tried to find the best I could and yes, they are a little expensive. But again, that was my choice. What I enjoy doing is the custom fiberglass work. The subwoofer enclosures and the trunk liner were both my creations. The small stuff, like installing the HID's, interior and exterior lighting, the NOS bottle install; those were all things I did. Currently I am working on a custom fiberglass mount on the dash, for a Mini-Laptop for FlashPro.

Thanks

 

Yep it's all good, I know I sunk in at least $15k in my last car before selling (without labor. So I too certainly know the territory

But yeah I had the Eagle F1's too and cold they're not that great, ripping through gears with a 200HP Accord is a smidgen different than a 300HP SI so I could certainly see more traction issues.

As it gets colder (and I know you're in Cali) you may want to consider a 2nd set of wheels with different tires (perhaps a good set of all seasons.) It's what I'll be doing for my S2000. Special wheels get special tires Curbed OEM gets all seasons

 

That is very respectful of you, and I will delete my post. I sent you a private message also.

 

JeeBus

How much of that "70K" was on audio crap...

Seriously you have a boosted Si that only makes 307whp and your into it for 70K

*Toot tooooT*

All aboard the failboat!

Ninja edit: If you really are 50 you should know better than posting how much you have "into" your car in terms of money. Its irrelavent and only makes you look like your trying to brag about something most of us would roll over laughing at.

 

And is not what the thread is about at all.

But keep tooting that horn!

 

Response to the Ninja edit: You make a good point. Lesson learned. Seems best if I just keep my mouth shut about what I am doing to the car, specially when it comes to cost.

 

Hey im not hating on you Charged but posting money into what youve done isnt nessecary. You realize that and thats fine. I remeber reading something a while back in the rant thread about your son being in the hospital. I hope he is doing well and you need to post some pictures and videos of the car running.

 

I still think you got a good deal! I paid $29,600 and got 2500 off. The cost of living in Canada I guess.

Anyways you never answered the main point of my question, what is the suspension you are running and have you put on motor mounts/torque dampners? All those will factor into how well your car sticks to the ground (besides good tires, which you have).

 

if you read his garage profile it tells you he is running honda performance hfp suspension. definatly changing to a more aggressive suspension should help with the car not lifting as easily and taking weight off the front tires during a launch. i know its a totaly dif car but when i had my old ef, gutted completely and a stock b16 and stock suspension, and yokahama avs es 100's, i would light the tires up all the time. as soon as i put on a coilover and shock combo, it almost went away completely unless i was trying to do a burnout. and see if you can find any kind of front traction bar for your car.