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Discussion Starter #1
I just bought a 2002 SportCross. I love the car as it is, but I'm always looking for improvements to my cars. I was wondering if anyone knew of any must-do mods (whether aesthetic or performance mods).

For example, I spent about $30 changing the interior lights on my Corvette to LEDs, and I think it was the best money I've ever spent on the car. $200 to change the sealed beams to LED headlights is a close second. If anyone bought a C4, I would recommend them to do those two mods right off the bat, no questions asked.

I'm thinking I'll ultimately turbo the car, so I'd like to avoid any expensive engine mods until I make that decision, but I would like to try to give the car a bit more pep. (It's fast enough for what it is, but I'm coming from a Corvette. What can I say?) I'd also like to keep the car smog-legal for now.

I've been doing some reading here, and a lot of people recommend replacing the intake pipe and adding a CAI. Looks like that would be about $300, though, and I'd end up replacing it again if went to turbo.

What do you guys suggest?
 

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I just bought a 2002 SportCross. I love the car as it is, but I'm always looking for improvements to my cars. I was wondering if anyone knew of any must-do mods (whether aesthetic or performance mods).

For example, I spent about $30 changing the interior lights on my Corvette to LEDs, and I think it was the best money I've ever spent on the car. $200 to change the sealed beams to LED headlights is a close second. If anyone bought a C4, I would recommend them to do those two mods right off the bat, no questions asked.

I'm thinking I'll ultimately turbo the car, so I'd like to avoid any expensive engine mods until I make that decision, but I would like to try to give the car a bit more pep. (It's fast enough for what it is, but I'm coming from a Corvette. What can I say?) I'd also like to keep the car smog-legal for now.

I've been doing some reading here, and a lot of people recommend replacing the intake pipe and adding a CAI. Looks like that would be about $300, though, and I'd end up replacing it again if went to turbo.

What do you guys suggest?
If you are thinking of turbo. Just do it. Low boost (6psi) on stock internals. Is fine. should be around 300 to 350 whp. There are lots of write ups on the forum.
 

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Discussion Starter #5
If you are thinking of turbo. Just do it. Low boost (6psi) on stock internals. Is fine. should be around 300 to 350 whp. There are lots of write ups on the forum.
That's my plan, good to know I won't have issues.

If it is a manual then the FIGS Clutch Damper Delete is a good one.
Thanks, but sadly the SportCross only came in auto.

I wouldn't bother with the intake if you want to turbo. You can also try the "throttle cable spacer mod" at the throttle pedal to help get more pep easier/faster
I came across that, but so far the throttle response hasn't bothered me.
 

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Just got my IS300 too and looking to turbo it for just a bit more power. Turbo kits are not that expensive nowadays. So you guys suggest not to go over 6psi right? The stock AT tranny should be able to handle it?
 

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What's expected with 6psi? 300hp at the crank, so ~225 at the wheels?
My first turbo IS made 310 whp on 5.7 psi of boost. Ended up blowing the ringlands on cylinder 6 though. Was on a PTE 6262. Stock intake is the best. You could replace the tube. but not worth the effort imo.

I think the best way to make a little extra power is to do a tune up and make sure its running as best as it can. Clogged cats slow you down a bit. you'll be surprised how much a new maf and o2 sensors COULD help your car drive. My wagon is much slower than my sedan and they are both 100% stock.
 

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Discussion Starter #12
My first turbo IS made 310 whp on 5.7 psi of boost. Ended up blowing the ringlands on cylinder 6 though. Was on a PTE 6262. Stock intake is the best. You could replace the tube. but not worth the effort imo.

I think the best way to make a little extra power is to do a tune up and make sure its running as best as it can. Clogged cats slow you down a bit. you'll be surprised how much a new maf and o2 sensors COULD help your car drive. My wagon is much slower than my sedan and they are both 100% stock.
It seems fairly peppy right now. I'm planning to clean the MAF, and tonight I'll be hitting the drag strip so I'll be able to get an idea if it's running at 100%.
 

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Discussion Starter #14
Not bad at all! (For a wagon with 220k miles)

R/T ... .293 (I know it's bad!)
60' ... 2.343
330 ... 6.731
660 ... 10.277
MPH ... 69.71
1000 ... 13.299
MPH ...
E.T. ... 15.846
MPH ... 88.90


I figure the weight is around 3600: 3400 for the car, 160 for me, and about 40lbs of gas. Putting that into a HP calculator gives me 194.9 rwhp from my MPH and 178.8 rwhp from my E.T.

At a temperature of 67 F, barometric pressure of 29.885 in Hg, dew point of 56 F, and altitude of 72.2 ft, that gives a correction factor of 0.984. MPH HP goes to 191.8 HP, and E.T. HP goes to 175.9 HP.

Figuring a 20% drivetrain loss for the auto, that puts me at 240.0 HP and 219.9 HP at the crank, respectively. In either case, that seems pretty healthy for an engine rated at 215 HP. I tried to find numbers for comparison, but I can't find anyone else who's run their SportCross in the 1/4.
 

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Not bad at all! (For a wagon with 220k miles)

R/T ... .293 (I know it's bad!)
60' ... 2.343
330 ... 6.731
660 ... 10.277
MPH ... 69.71
1000 ... 13.299
MPH ...
E.T. ... 15.846
MPH ... 88.90


I figure the weight is around 3600: 3400 for the car, 160 for me, and about 40lbs of gas. Putting that into a HP calculator gives me 194.9 rwhp from my MPH and 178.8 rwhp from my E.T.

At a temperature of 67 F, barometric pressure of 29.885 in Hg, dew point of 56 F, and altitude of 72.2 ft, that gives a correction factor of 0.984. MPH HP goes to 191.8 HP, and E.T. HP goes to 175.9 HP.

Figuring a 20% drivetrain loss for the auto, that puts me at 240.0 HP and 219.9 HP at the crank, respectively. In either case, that seems pretty healthy for an engine rated at 215 HP. I tried to find numbers for comparison, but I can't find anyone else who's run their SportCross in the 1/4.
Maybe I can take my wagon out for comparison. Mine is all stock. Definitely interesting! Thank you for the info
 

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Not bad at all! (For a wagon with 220k miles)

R/T ... .293 (I know it's bad!)
60' ... 2.343
330 ... 6.731
660 ... 10.277
MPH ... 69.71
1000 ... 13.299
MPH ...
E.T. ... 15.846
MPH ... 88.90


I figure the weight is around 3600: 3400 for the car, 160 for me, and about 40lbs of gas. Putting that into a HP calculator gives me 194.9 rwhp from my MPH and 178.8 rwhp from my E.T.

At a temperature of 67 F, barometric pressure of 29.885 in Hg, dew point of 56 F, and altitude of 72.2 ft, that gives a correction factor of 0.984. MPH HP goes to 191.8 HP, and E.T. HP goes to 175.9 HP.

Figuring a 20% drivetrain loss for the auto, that puts me at 240.0 HP and 219.9 HP at the crank, respectively. In either case, that seems pretty healthy for an engine rated at 215 HP. I tried to find numbers for comparison, but I can't find anyone else who's run their SportCross in the 1/4.
Right on the money. It is running fine. Same kind of times I have gotten.
 

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Discussion Starter #18

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Ran mine Friday after going through the suspension. Did not clean the MAF tho...
124k stock except for Koni STR.T's and Eibach Sportlines.

1st pass was with TC off and I one wheel peeled for an 18 second pass.
2nd pass was with TC on and activated through all of 1st gear for a 17 second pass.
3rd pass was with TC on and about a 2k RPM launch which was:

60' = 2.406
330'= 6.937
1/8= 10.632
MPH= 67.29
1000'= 13.761
ET= 16.40
MPH= 85.22

Went home after 3rd pass.
 

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Discussion Starter #20
Ran mine Friday after going through the suspension. Did not clean the MAF tho...
124k stock except for Koni STR.T's and Eibach Sportlines.

1st pass was with TC off and I one wheel peeled for an 18 second pass.
2nd pass was with TC on and activated through all of 1st gear for a 17 second pass.
3rd pass was with TC on and about a 2k RPM launch which was:

60' = 2.406
330'= 6.937
1/8= 10.632
MPH= 67.29
1000'= 13.761
ET= 16.40
MPH= 85.22

Went home after 3rd pass.
Crazy that you're hitting traction control! I was launching at 2-2.5k with TC off and I don't recall hearing a peep out of my tires. Are your tires old, or was the track not prepped?
 
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