So im trying to figure out why i have almost no torque on a launch. I got the car used so i dont know the last time the spark plugs were changed. my mods are just basic bolts...could it be the warm florida air from the HAI?
any ideas what would cause so much low end loss?

 

Does the car feel better when it's cold? If so, could be heat soak.

S

 

check for codes such as the knock sensor

 

no KS already kill that bird...im thinking heat soak...i have custom made heat shield though using ABS plastic. i might move some things around and check to see if its heat soak, but even if it was it should be to the point where i cant spin the tires on a 2k launch

 

Since you don't know the history of the car, I'd spend an afternoon and do a basic tune-up. ie spark plugs, PCV valve, clean the TB and IACV, fuel filter etc etc.

If nothing else, at least check the spark plugs. Takes no time at all.

Just how sticky are your tires?? Z rated?

 

not very sticky...i just have my saw blades on and ive got my crappy all season khumos on it lol... my 2k1 6 spokes have potenzas on it...

cleaned my throttle body it wasnt tooo dirty, plugs were okay...prob replace them in about 10k

ill clean my pcv, and iacv on friday when im not working... how would i clean them or what would i use? Firgured Id ask because i have a tendency to mess things up :-p

 

Basic tune up FTW! i would start there cause all that stuff makes for poor performance. do you have check engine light on?

 

are you sure your intake is getting enough flow? where is it mounted? also ... you may clean the MAF and see about a fule filter too. cheap and easy fixes are a lot of times the case. are you auto or 5spd?

 

Your biggest problem probably is your HAI. It's known to lose low end with them. Stock FTW.

 

its an Auto...i just did my fuel filter. and my plugs are good....i need to check my IACV and clean it..ill figure out how to clean my MAF

and on....well... the next day i have off im gonna make a OSCAI dont wanna do a true cold air because its pretty wet and rainy in florida dont wanna get water in the engine.

 

The chances of sucking up water with a CAI is slim unless you drive in several feet of water.
If you still have your stock intake put it back on or at least use your stock resonator with whatever setup you chose. Your intake right now is hurting your performance and is only making noise. A true CAI with using your stock resonator is the best setup IMO.

 

Also your expecting a lot. An almost stock automatic 4th gen in warm weather is not going to be able to spin the tires.

 

yeah put on your stock air box and you will notice a difference in low end right away.

 

Hey now, mine would spin through first and chirp second in the summer TN heat

That is to say, back when it was running...

 

ya an auto hu... with bald *** tires maybe..

 

Brand new Sumitomos...

 

well my auto even with a HAI would spin quite a i bit for 100+ degree weather with 95% humidity so thats why i posted...i knew id see torque gains if i went back to stock box, but im gonna do a tune up and see what happens, im just gonna drop the 50 or so for new plugs and a new fuel filter, and clean my iacv.... ill just hope for the best

 

check the Air filters, clean out the intake tubings etc... and get iridium spark plugs

 

what would iriduim plugs do? I know FI guys get them but how would they help here?

 

Iridium plugs wouldn't do squat for the OP's 'problem'...

 

was thinkin the same thing

 

I've started to notice a similar problem myself. I have a 97 5sp with a fairly new clutch. To get a good launch I have to launch a lot higher than usual, 2700-3000 RPM and I barely get a chirp out of it. I am not chirping into 2nd either.


Normally one would think this is just a clutch problem, but believe me my clutch is fine and I have noticed a decrease in power.

My knock sensor is fine and was replaced a while back, my air filter is fine and unobstructed, no CEL or ghost codes except for my O2 sensor heaters which shouldn't have anything to do with this (blew the fuse on the heater circuit for the o2's, but are otherwise almost brand new o2 sensors), I replaced my fuel filter and my spark plugs with NGK's. I've been filling up with premium. I just don't get why my car seems to be down on power.

Not too long ago I cleaned the TB and IACV as well.


Today full out I was barely able to keep up with a completely stock Toyota Tacoma used as a service vehicle for a nearby Land Rover dealership.....

 

I don't think that's true dude!!

 

so i cleaned out my IAcv and PCV valves and my MAFM and did an OSCAI
with my DR mod i chirped second tonight...(outside temp was 78)

im happy now. thanks guys.

 

If ya end up swapping out the plugs I would recommend the NGK V-Power cold plugs. How dirty was the IACV? was it a light black greasy film or was there shyt caked up in there?

 

it was black lol