I've read the how-to in the FAQ, and I've searched some, but I'm just gonna ask, how is the throttle hang fix working out for most of you? After driving my SVT to be a few more times, (should be taking it home with me Wednsday, yehya!) I've really noticed this, and really don't like it. It an E0, '98, so will it work out without creating other problems. In the tutoril they mention it hurts power on certain SVTs, do I need to be concerned about this? Discuss.
what do you not like about it? it shouln't really bother anything other than throttle hang, and power loss was never an issue.
It's easy and cheap. Try it and see if you like it. If you don't, it is easy to remove.
If you want to try a different rpm fix, get the fidanza 9lb flywheel
There is absolutely zero power loss from the TH fix. There couldn't be because the IAC is closed when the TPS signal is not at rest.
I just did the TH fix about 2wks ago & I couldn't be happier. My car never moosed so I didn't concern myself with that, but the TH made the car very irritating to drive at times. Now it's sooooo much nicer & the "power loss" is probably a bunch of crapola as I haven't noticed any whatsoever. I mean hell for $.50 or less (free in my case as I found a pipe cap here & borrowed the drill bit) and maybe 5min worth of work it's absolutely worth trying & it's easily reversible so no worries there either.
Yea, I'm writing the check and taking the keys tonight, so tomorrow I'll probaby go out and get me a few pipe caps and find a place to drill a few different sized holes in them. Be nice to pick my foot off the throttle and have the engine actually wind back down like it should.
Sorry for bringing back an old thread, but I've been doign some experimenting
Originally posted by DemonSVT:
There is absolutely zero power loss from the TH fix. There couldn't be because the IAC is closed when the TPS signal is not at rest.
This is what really had me thinking. You see, in my experience, there is absolutely beyond a doubt a difference in performance with the TH fix. Its what we define as "performance loss" that I think is confusing.
If the IAC is closed at WOT, this makes sense that at WOT there would not be a performance difference. And that I agree with; that even with a TH plug in there, at WOT, performance is the same. However, I theorize that the sluggish performance we experience is a loss of throttle response at steady speeds and around town driving. That first tip-in of the throttle when cruising is noticably more sluggish with a copper cap and small hole (small being 5/32" 3/16" or so).
My methodology of testing began with a 5/32" hole in a copper cap and I've increased the size of that hole by 1/32" with each test. I would install the cap, go for test drive of about 10 miles mixing city and highway driving. With each cap that was larger I noticed better throttle response each time. I'm now up to 5/16" and have no moose yet and the car feels the best it has since I started testing.
I might add that don't really have problems with throttle hang (mostly due to the ADC tune I have) but since I installed the headers the car began moosing very badly so I turned to the "TH Fix" for a fix but I immediately noticed the car feeling very sluggish and I began testing larger holes.
Interesting, my car had very bad TH, did the fix and it helped but still comes down slowly. I can't stand the hang so i will deal with a loss in throttle response.
I'd say wait until it gets cold to see if you've fixed your moosing problem.
Well, I guess my SVT only mooses if it's cold outside...
ok i had really really bad hang. it would rev up from 2 grand to 4 grand by its self when coasting. and stay there until i stoped. i replaced the iac 2 times. fixed it for about 3 weeks both times. and i just took it to a shop and they found nothing wrong. i was pissed. i got the car back and it wasnt doing it anymore. but it comes and gose. would the plug help with this bad hang? o and the car is a 99 svt