Took advice: Engine covers
09-17-07, 09:05 PM
#61
Lexus Fanatic
Lol that statement is completely uneducated on typical automotive design in the 2000’s. What you find out about *stock* cars (at least the 11 new cars I’ve owned) is that manufacturers limit many aspects of the car, specifically usually intake and exhaust. Hell, look at cars like the Subby Sti that can crank out tons of HP by simply raising turbo boost (via chip) that’s set at a lower boost from the factory. AKA why ... blah blah blah... ramble ramble ramble...
Look for all you ppl looking for some sort of ram air effect, thats what your trying to get at right? EASY, just fabricate some type of oval housing to go over the intake vent, get that flexi hose thingy for clothes dryers (they're made for heat so under the hood it should be ok) and snake that hose down to the lower grill, fabricate another type of wide mouth opening to act as a scoop... simple.
Those squiggly lines are cool. NOW we have to look for monkeys in the trees/weirdos in paint reflection AND RED SQUIGGLY LINES in every pic here on the 2IS board
09-17-07, 10:20 PM
#62
Tech Info Resource
iTrader: (2)
Lol that statement is completely uneducated on typical automotive design in the 2000’s. What you find out about *stock* cars (at least the 11 new cars I’ve owned) is that manufacturers limit many aspects of the car, specifically usually intake and exhaust. Hell, look at cars like the Subby Sti that can crank out tons of HP by simply raising turbo boost (via chip) that’s set at a lower boost from the factory. AKA why everyone and their sisters put on intakes and exhausts as some of their first mods. Lexus has notoriously done this on the IS350… specifically look at handling. The IS350 is a capable car yet Lexus has dumbed it down with baby sitter electronics. If Lexus was out to make a true performance machine they would have alerted the suspension in a way (probably easy for them to do) to induce overseer instead of under steer. AKA… companies like BMW make their cars *less* restrictive in things such as this.
Lexus engineers set the car up exactly as they wanted it… which can easily be modified to far exceed what they designed. Lexus designed the car so that people wouldn’t wreck it all the time and sue them.
Grandma and grandpa need not apply to own an IS-F because its going to be a more serious attempt hopefully by Lexus to put out a better performance machine stock. It’s not going to be comfy or quite. I can see it now, just like the Sti forums though... people will buy the Sti and then complain that the rides to rough and ask people what they can do to soften the car up.. oh good god. You take a corner to hard in that IS-F and grandma electronics probably aren’t going to stop that rear end from swinging... just how an automotive enthusiast wants it.
Lexus engineers set the car up exactly as they wanted it… which can easily be modified to far exceed what they designed. Lexus designed the car so that people wouldn’t wreck it all the time and sue them.
Grandma and grandpa need not apply to own an IS-F because its going to be a more serious attempt hopefully by Lexus to put out a better performance machine stock. It’s not going to be comfy or quite. I can see it now, just like the Sti forums though... people will buy the Sti and then complain that the rides to rough and ask people what they can do to soften the car up.. oh good god. You take a corner to hard in that IS-F and grandma electronics probably aren’t going to stop that rear end from swinging... just how an automotive enthusiast wants it.
Your supposition that intakes and exhausts will net you a significant gain is ill-founded. You get a small gain, and only at the cost of violating Federal noise requirements. It is impossible to get more from the design AND meet the manufacturer's requirements. If it were, they would have already given it to you.
Simply raising boost comes with a cost - service life and warranty survival both suffer when boost goes up. There is no escape from this. The OEMs design so the engine will deliver the rated power for 200k miles without major work. They do not "restrict" the designs, they have design goals, service life, and warranty requirements to meet.
I would suggest you are the one uneducated in modern automotive engineering.
Last edited by lobuxracer; 09-17-07 at 10:23 PM.
09-19-07, 04:43 PM
#65
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Well after trying it for a few days w/out the front engine cover I dont notice any performance gains, I might even notice some performance loss. Acceleration in 2nd gear seems less... What I do notice is that the RPMs run lower than what it use to between 10 to 35 mph... it now upshifts sooner and I want to say is smoother, maybe acceleration isnt less its smoother? Not sure. Before how ever light I am on the throttle it will not upshift into 6th until at least a 40 mph now it will upshift into 6th at 38mph. Cruising between 75 to 80 the MPG consumption is about the same. I dont see a significant change.
09-19-07, 10:46 PM
#66
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IS350 can’t touch it in any possible way at any speed. The Sti is scary fast those few times you really pull the trigger. I spent a lot of time AutoXing my Sti and it was pretty damn fun. Taking slaloms was like an arm work out. The S2000 in the slaloms was like a warm knife through butter. IS350... Who knows... I probably wont ever autoX or track it.
09-19-07, 11:04 PM
#67
Lexus Fanatic
09-20-07, 06:53 AM
#69
Edmunds says 5.4 seconds 0-60 for an 07 STI... which is about the same as an IS350... they don't list 1/4 mile, but the times I've seen elsewhere is also simialr to the stock IS350.
Course with an STI you can crank the boost up... but stock for stock the STI certainly doesn't blow the doors off an IS350.
Course with an STI you can crank the boost up... but stock for stock the STI certainly doesn't blow the doors off an IS350.
09-20-07, 08:25 AM
#70
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Edmunds says 5.4 seconds 0-60 for an 07 STI... which is about the same as an IS350... they don't list 1/4 mile, but the times I've seen elsewhere is also simialr to the stock IS350.
Course with an STI you can crank the boost up... but stock for stock the STI certainly doesn't blow the doors off an IS350.
Course with an STI you can crank the boost up... but stock for stock the STI certainly doesn't blow the doors off an IS350.
Dont magazine race, especially with Edmunds data.
09-20-07, 08:35 AM
#71
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for example, if I stop at Starbucks, I can drink a cofee in my IS350 just as easy as I could my sti.
09-20-07, 10:08 AM
#73
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Not the case though. The Sti isn’t a Honda with no toque like say my old S2000 that would accelerate like an Average Honda at speed. The Sti has 300 torque at a reasonably low RPM with little turbo lag and weighs 300+ pounds less than an IS350. It would be closer at speed then off the line, hell maybe even strait up even… in that case it is even in the realm of the driver. But were also talking perfect conditions. The Sti would dominate in anything other than dry pavement and throw in a corner and the games over.
09-20-07, 10:14 AM
#74
How bout Car and Driver? They got 13.4 out of the STi...
I'm sure you can get a sub 5 0-60 if you rev the crap out of it and dump the clutch, but clutches ain't cheap...
I'm not knocking the STI, for the type of car it is it offers very nice performance... I'm just saying I don't think it's quite the non-race as you seem to think it is with an IS350.
09-20-07, 10:36 AM
#75
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How bout Road and Track? When they did their STI vs. EVO story they got 13.3 in the 1/4 mile out of the STi...
How bout Car and Driver? They got 13.4 out of the STi...
I'm sure you can get a sub 5 0-60 if you rev the crap out of it and dump the clutch, but clutches ain't cheap...
I'm not knocking the STI, for the type of car it is it offers very nice performance... I'm just saying I don't think it's quite the non-race as you seem to think it is with an IS350.
How bout Car and Driver? They got 13.4 out of the STi...
I'm sure you can get a sub 5 0-60 if you rev the crap out of it and dump the clutch, but clutches ain't cheap...
I'm not knocking the STI, for the type of car it is it offers very nice performance... I'm just saying I don't think it's quite the non-race as you seem to think it is with an IS350.
Works both ways now doesn’t it.
But you know I have an IS350 right? I absolutely love it and always stick up for it but really, don’t put the Sti up against an IS350 in a performance test of any kind, it would pretty much fail at each and every spec so don’t, it’s crazy talk.