I am curious how a boosted car handles on the track? I know there are few R's around here that are boosted and track but how does it handle compared to when it was N/A? Does the car feel balanced? please comment with experiences and what suspension/tire combos you were running.

 

From the little bit I've played with FI cars (and this was just on backroads, so nothing really that comparable to on track), something I definitely did not like was hitting full boost mid-corner. When you're trying to be smooth around a turn and you get a sudden power surge, it sort of upsets things, unless you know when it'll hit I guess.

 

What drivetrain setup FI cars did you drive? Any FF?

 

Wasn't much fun at an Autocross, but the bit of torque-steer or power-on wheel slip/under steer is managable unless your foot is completely to the floor!

 

What made if not fun?

 

it is not fun to race unless you have slicks! i autocrossed my r about a month ago on street tires and that was hard. spinning in first and second, going through corners not being able to get on the gas really sucked.

 

Well, I'm not exactly "high" boost (230whp), but FWIW, my car handles great on the track, whether I'm using azenis or R compounds. My car feels very balanced, even more so because I have more throttle to steer with. Then again, my jrsc doesn't have a "turbo lag" to upset the balance in the corners. Oh, and I have lowdowns.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Batoutahell &raquo;</TD></TR><TR><TD CLASS="quote">Well, I'm not exactly "high" boost (230whp), but FWIW, my car handles great on the track, whether I'm using azenis or R compounds. My car feels very balanced, even more so because I have more throttle to steer with. Then again, my jrsc doesn't have a "turbo lag" to upset the balance in the corners. Oh, and I have lowdowns.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B2FiNiTY &raquo;</TD></TR><TR><TD CLASS="quote">What made if not fun? </TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ryu12341 &raquo;</TD></TR><TR><TD CLASS="quote"> .... spinning in first and second, going through corners not being able to get on the gas really sucked. </TD></TR></TABLE>

This is probably one of the situations where a JRSC shines (an autocross)!

I'll be trying my car out at Nelson's Ledges and Watkins Glen the next two weeks, where there aren't any/many sharp corners and the power will definately help down the straights.

Ahhh ... Buddy Clubs (12F/14H rear springs), Mugen 26mm f/r bars and Mugen f/r strut tower bars, Quaife.

 

These guys have cars more comparable to your question, but yes, mine was a FF. My brother will be tracking an SR20-powered 240SX next summer, so we'll get to see how FR does with that same situation. I'm trying to tune it for quick spool up though, so as to minimize that problem, and it certainly won't have anywhere near 300hp.

 

i dont understand how the handling would be affected? the suspension is the same the only diffecence is the power output. know how to handle the output difference and it wont be a prob . . i will say however autoxing isnt fun unless you got some decent tires. i broke my azenis loose rediculously at the last autox, but it was great

 

Are you running stock suspension? Do you feel that the power is too much for the suspension?

 

no i have some upgrades. its all a matter of knowing how to drive the thing.
When it starts getting hard to drive is 400+whp level, but thats not needed on those courses. when you got that much power in FWD its hard to keep the car straight on heavy throttle

 

Dennis, you have to swap a turbo'd K20A3 into your ITR like I did...I was the first!

Cooling is another issue with turbo'd cars, I would assume.

As for handling, I doubt it would improve by adding another 200whp to the wheels. I of course have never driven a boosted ITR on track - because none of them ever show up. The few turbo'd Rs that showed up to EXPO didn't even drive.

 

I wanted to at the Expo , but i was too low on cash to do it . cost too much damn money.
i dont think cooling will be an issue, i beat on my car pretty hard in the mountains for decent periods of time . i never had my temp gauge go any over what it did when it was stock

 

What kind of cooling setup are you running?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B2FiNiTY &raquo;</TD></TR><TR><TD CLASS="quote">What kind of cooling setup are you running? </TD></TR></TABLE>
Hmm, whats the deal Dennis? You planning on doing anything behind my back again? hehe.

Boosted cars have a slower entry speed in a corner then NA. But boosted have a better exit in corners then the NA. So choose which one you want. Im sure there is alot more things to compare then that, but that is what i know.

 

a boost controller and small spring could be anyones friend.. in my case, my low is 200whp and high of 265whp,

at 200whp - 3psi - because of torque from very low end - due to small turbo, i got better traction than i did at 175whp n/a - i'd always spin in first once i hit vtec.. of course, at 265whp theres not traction in first, i tried and didn't want to try anymore.. don't know about in between settings as i haven't had the setup long enough.. but overall.. you could turn the boost up/down

high compression + small turbo = will have better powerband than n/a motor, you will have hp at low and high rpm.. - but at 265whp i don't consider myself high boost or anything.. - i just want a mild setup for everyday driving..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2000 Integra R #760 &raquo;</TD></TR><TR><TD CLASS="quote">
Hmm, whats the deal Dennis? You planning on doing anything behind my back again? hehe.

Boosted cars have a slower entry speed in a corner then NA. But boosted have a better exit in corners then the NA. So choose which one you want. Im sure there is alot more things to compare then that, but that is what i know. </TD></TR></TABLE>

lease explain to me how a turbo would make the car have slower entry speeds?? it makes no sense

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2000 Integra R #760 &raquo;</TD></TR><TR><TD CLASS="quote">Boosted cars have a slower entry speed in a corner then NA.</TD></TR></TABLE>

I'd love to hear the explanation for this too!