Joe_Dezod
02-19-2005, 04:11 AM
Ok, as some may know, my tC will serve as a decent test car for what results will be for bolt on suspension upgrades, as well as tires. I have equipped my tC with an Apexi RSM-GP. It tells you HP, F-R, and R-L G's, speed, rpms etc... I also equipped it with the Apexi G-sensor system which has been calibrated so on a level surface it sits at dead 0.
I will be putting the tC through series of tests. I'll use this thread to log what I get for results, as well as condition, speed, throttle position, mods, tires etc...
Stock tC skidpad according to R&T: .82g
Fixed Conditions: 160lb driver, 3/4 tank gas, 1 10" sub in trunk.
TEST 1:
**Condition: Dry, somewhat salted roads, 32*F, 5 PM.
**Mods: Stock wheels and tires, 32psi front, 29back. Stock sway bars. H&R springs, stock struts. Hotchkis front upper strut bar. Drop was done, and no alignment yet.
**Technique: Approx 38mph, 3rd gear, 60% throttle, sharp left turn.
**Results: .82g!!! Same as stock. This shows how accurate the g-sensor is. I also got moderate understeer as depicted in the review in R&T as well. The inside tire was chirping the whole time. Initial turn in response was as expected, nimble but not harsh at all.
**Verdict: I will try a more clean road (less whiteness to it, salt), and attempt again. I will also attempt the same turn, but with 0% throttle and see how much it takes to max the car out. Stiffer sway bars should also help improve the turn in response.
TEST 2: 2/20/2005
**Condition: Dry, somewhat salted roads, 26*F, 10:30AM
**Mods: Stock wheels and tires, 32psi front, 29back. Stock sway bars. H&R springs, stock struts. Hotchkis front upper strut bar. Drop was done, and no alignment yet.
**Technique: Approx 48mph, 3rd gear, 5-10%% throttle, sharp left turn.
**Results: .89g!!! I'm starting to feel more and more comfortable with the handling. Once the 18x8s are on, I should be able to pull over a G with just H&R springs and nice tires.
**Verdict: Without provoking oversteer and attempting to get the car to grip as hard as possible, it's very easy to get a little more traction up front. The car felt very neutral on the corner followed by moderate understeer once again upon leaving the turn under greater throttle pressure. 18x8s with the better tires should help me pull over a G. If I can find a better ramp (possibly tomorrow, (with passenger though), then I can log with higher traction.
Expect more in this write up to come. It should also serve as a great guide for future modders out there.
Anyone have any specific tests they want done to give a better understanding of what mods do what?
Examples: I plan on testing at various speeds. Also want to test a "Snap" turn in and see what I can peak the g's at to measure how hard the sway bars kick.
I will be putting the tC through series of tests. I'll use this thread to log what I get for results, as well as condition, speed, throttle position, mods, tires etc...
Stock tC skidpad according to R&T: .82g
Fixed Conditions: 160lb driver, 3/4 tank gas, 1 10" sub in trunk.
TEST 1:
**Condition: Dry, somewhat salted roads, 32*F, 5 PM.
**Mods: Stock wheels and tires, 32psi front, 29back. Stock sway bars. H&R springs, stock struts. Hotchkis front upper strut bar. Drop was done, and no alignment yet.
**Technique: Approx 38mph, 3rd gear, 60% throttle, sharp left turn.
**Results: .82g!!! Same as stock. This shows how accurate the g-sensor is. I also got moderate understeer as depicted in the review in R&T as well. The inside tire was chirping the whole time. Initial turn in response was as expected, nimble but not harsh at all.
**Verdict: I will try a more clean road (less whiteness to it, salt), and attempt again. I will also attempt the same turn, but with 0% throttle and see how much it takes to max the car out. Stiffer sway bars should also help improve the turn in response.
TEST 2: 2/20/2005
**Condition: Dry, somewhat salted roads, 26*F, 10:30AM
**Mods: Stock wheels and tires, 32psi front, 29back. Stock sway bars. H&R springs, stock struts. Hotchkis front upper strut bar. Drop was done, and no alignment yet.
**Technique: Approx 48mph, 3rd gear, 5-10%% throttle, sharp left turn.
**Results: .89g!!! I'm starting to feel more and more comfortable with the handling. Once the 18x8s are on, I should be able to pull over a G with just H&R springs and nice tires.
**Verdict: Without provoking oversteer and attempting to get the car to grip as hard as possible, it's very easy to get a little more traction up front. The car felt very neutral on the corner followed by moderate understeer once again upon leaving the turn under greater throttle pressure. 18x8s with the better tires should help me pull over a G. If I can find a better ramp (possibly tomorrow, (with passenger though), then I can log with higher traction.
Expect more in this write up to come. It should also serve as a great guide for future modders out there.
Anyone have any specific tests they want done to give a better understanding of what mods do what?
Examples: I plan on testing at various speeds. Also want to test a "Snap" turn in and see what I can peak the g's at to measure how hard the sway bars kick.