Can the stock setup be tuned? I mean in terms of advancing timing and so forth? Im basically looking for free methods of improving my stock situation.

 

You could advance the timing to 18 degrees for a couple horses at the wheels. It would make a more noticable difference with bolt-ons though

 

I think he was talking about tuning the cam shafts with cam gears, right? I want to know too. It seems like a lot of people of this board just swap out the cam shafts all together with more aggressive ones. Is there more power that can be extracted from the stock ITR cam shafts?

 

V-afc

 

Well,

I know vagoitr from this board basically has only hytech header and exhaust, cam gears and vafc. He made 185whp with this setup, and did mention that the vafc and cam gears were crucial in tuning...

Remember, that's basically 25whp over stock!

 

Is there anyway to exclude the effects of the hytech header and exhaust? Judging from the cost and opinions of others, the hytech pieces are supposed to yield excellent results by themselves. So I'm thinking that a lot of the 25whp gained by vagoITR is from the header and exhaust alone.

Basically, what I'm trying to ask is, what should I expect from toda cam gears and a v-afc?

itr501 - hope you don't mind me riding on your topic


[Modified by CPR, 11:58 AM 9/27/2001]

 

I had put down 185 with a jdm itr, testpipe, stock timing *no advance*, mugen ecu, aem intake, and cams set at +2, +2 (wasn't really going for peak but more midrange) with a fields vtec controller and FPR.

I did the +2 +2 so i can move the powerband a little south. I've heard multiple people going +2 int 0 ex or +1 -1
tp get more overlap. It all depends on where you want the power to be........... all on top all in the middle? peak etc........

 

I've heard that for the past two years.
"With cam gears you can move your power band"
I think that's bullshit. When you change the cam gear setting, four things can happen...
1-gain power
2-lose power
3-little to no change at all
4-fill in a small gap or dip in the line

I am currently running the stock 98 cams in my car and I dyno'd this past weekend. Setup is as follows...
DC JDM 4-1
Stock exhaust
Stock cams +6, -1
B&M FPR(set at 48psi)
skunk2 cam gears, ecu jumper, p28
milled head 12 thou(about .25 increase)

184.6 and 131.1 on dynojet. i think once i go with a larger exhaust and tune the AFC i will get some more. but for now, the car feels great.


[Modified by Mike K, 11:21 PM 10/18/2001]

 

2-3 peak hp gains with gears

3-5 hp gains across the board with VAFC

 

Dazamn! And all this time I've been reading that getting a V-AFC is pretty much useless on a stock ITR engine.

 

What kinda 1320 times can you expect from that 185HP setup ya got there?

 

I run consistent 9.1s in the 1/8th mile if that says anything. Not sure what that equates to in the 1/4.... my best is 9.01@80.0

 

i think if you want info on tuning stock cams, you should talk to epgonzalez. hes gotten 200+ on his stock cams, but hes basically running the whole mugen catalog and then some.

actually i now remember that he had his motor rebuilt too. dunno if you're willing to go that far.


[Modified by yellow blur, 8:38 PM 10/18/2001]

 

my best 1/4 run @ 14.522@95.79 the 1/8 was 9.449@76.70. so i guess if u want to try to compare/guess.......high 13s?


[Modified by Toda Party, 6:32 AM 10/19/2001]

 

Here is a link to some of my timeslips. You can get a pretty good idea of 1/8th to 1/4 comparisons from that.
http://www.fastasknutz.com/team/james/race.html
James