Anyone with type r cams, whats your vtec engagement set to?

I know its specific to every setup and needs to be found on the DYNO, unfortunately my tuner didn't take the time to do this, I know because my basemap and my current tune have the exact same settings. Just looking for people that have experience with this and the general range

lower boundry set to 4800
upper boundry set to 5300

Actually seems kinda low for ITR cams, pretty sure my basemap came off a car with gsr cams

Type r head/cams
gsr block 9.5:1
skunk2 ultra street IM
Ramhorn Manifold
Boosting @17 PSI

 

4400

 

Did you use the dyno to determine 4400 was the best or was it done on the street? I'll be boosting a GSR in the near future and haven't tuned a vtec engine yet. So I'm interested in this info as well.

 

My tuner set mine at 4600. Im running CTR cams.

 

Tuner set mine to 5k. Thinkin bout lowering it though.

 

I wouldn't go changing your vtec engagement point unless you know for a fact your tuner tuned the whole low cam and high cam maps.

 

Good point I was wondering about that....I always knew stock ECU uses different maps for HI/LOW cam

 

Yeah when I tune mine the plan is to tune the low cam maps from idle to about ~7k rpms, then tune the high cam maps from ~3k rpms to redline. Once that's done I'll play around with the vtec crossover point.

I could definitely see some so called "tuners" being lazy and not fully tuning all the maps. That could turn into a major problem if you start moving vtec crossover around to an untuned part of the map.

 

4400 was a guess, Then verified on the dyno

 

you are currently using ITR cams?

 

Yup

 

where do you find this setting in hondata? is that the same as high speed and low speed maps?

 

Yes same thing.

 

nice would you or someone mind sending me a screen shot on the low speed ignition....sometimes pulling out of my driveway its supper stumbly I noticed when I had my dizzy retarted it was way worse, 1k-1.5k is set to 18 degrees after that it smoothes out and also my ignition is set higher after this part

 

I use Neptune rtp but I don't have a map yet cuz I haven't started my build yet lol. But I'm probably gonna start with the p30 ignition maps as they seem to be smoother and a better starting point. Typically the stock part throttle ignition maps work well without many changes, but maybe someone else that has tuned more cars then me can chime in on this.

You could post up a screen shot of your ignition maps for some input too. What are your afrs doing when it stumbles?

 

You tune low can get the baseline then tune vtec and see where the engine wants the crossover to happen. Every engine is different. If your tuner doesn't know these basic steps find a new one

If you're tuning your self get on a dyno and see where the engine wants it it's pretty clear to figure out

 

When I took my car in the second time which is a complimentary svc to check it on the street after dyno day I brought this issue up and he did something and told me try it again then he said I needed to learn how to drive my clutch, I was Like I know how to drive my clutch....this has nothing to do with the clutch im starting to think this tuner is not very good at all at at best hes not familiar with hondata.

first pic low ign second pic high ign

 

Lean as ****

 

Wish it was that easy Theres only one shop out here and the others are freelance guys...I am starting to think I need to learn it, need to get to know this more and have more confidence in making changes dont wanna blow anything up lol

 

Your ignition map looks nice and smooth. Your stumble is definitely afr related. You would need to add fuel to the low speed fuel map where it's going lean. Try to keep it as smooth as possible, for example don't just add 10% to one cell and make a huge spike. Try to taper it into the surrounding cells. It helps to look at the 2d fuel map when you do it to make sure it's still smooth. Just make small changes, log and check afrs, and repeat until your problem is resolved.

 

Dude! thankyou so much!!! for holding my hand on this it really helps. Yes When I was studying the maps I noticed everything used gradual increases for a smooth transaction, I was already thinking I should do what you just said but this gives me alot more confidence that I was correct ...thanks again

I will check my phearable base map in that area as well as I dont remember having the stumble before I took it to the local tuner

quick question does my high speed ignition look too conservative ? this is on 17PSI

Ohh and by the way on dyno day he didnt have access to AFR via logs, cuz we couldnt figure out how to hookup the wires properly at that time....I had to do that myself I needed to hookup the analog ground from my aem wideband into the hondata internal connector

 

No problem dude alway happy to help. You didn't post a screen shot showing the boost columns, you would need to select "show 3 bar" in the settings.

 

Thanks im a noob I learned that last week forgot to add it in this time

1st low ign
2nd high ign

 

Getting closer lol but that only shows up to 11.9psi. Your at 17 right. Baby steps haha but we'll get there.

 

ye athats the thing I was wonderin cuz thats all it show....damm Im sych an amatuer I edited the post above as not to clutter this