JYR's next adventure. Tuning. My on-going thread...
0.0 BAR
Joined: Dec 2002
Posts: 0
Re: JYR's next adventure. Tuning. My on-going thread...
Originally Posted by MADMAX
Spot on Chris. The number of times I hear poepel say the more timing, the more power you make, der der der. Such BS.
The simple fact is that timing for maximum power is where it needs to be. More or less will make less power. N/A motors that are set up well with polished combustion chambers and pistons with a decent amount of quench with high compression and a good intake velocity to fill the cylinders will need far far less timing than a stock motor.
All that quench and compression gets the flame going across the combustion chamber really fast. It doesn't take much timing before you are too advanced.
The simple fact is that timing for maximum power is where it needs to be. More or less will make less power. N/A motors that are set up well with polished combustion chambers and pistons with a decent amount of quench with high compression and a good intake velocity to fill the cylinders will need far far less timing than a stock motor.
All that quench and compression gets the flame going across the combustion chamber really fast. It doesn't take much timing before you are too advanced.
Word and it comes really into play when a cylinder head is flowin like crazy yo. Seriously though a head that is flowing over 300 cfm doesnt like timing. I just did a map
stock h22 block
ported manifold/69mm tb
china ebay header that is killing atleast 10-15 whp imo
dhracing ported head
off the shelf cams
I did a basemap for the car close has I thought from what I have done with the h series all motor tuning. Dave from dhr did the install on the head and cams I wasnt there when they dynoed cleaning up afr Im confident I could of gotten another 3-4 whp.
Car liked a very mild timing map. Imo that car with a proper header,no exhaust and a real inatek is in the 235 whp range. Not to mention that dyno reads way low. The car is raping everything in hawaii.
http://videos.streetfire.net/video/4...ea0005d1cf.htm
mad vteccccc
1.5 BAR
Joined: Oct 2004
Posts: 1,263
Re: JYR's next adventure. Tuning. My on-going thread...
Originally Posted by chris
Word and it comes really into play when a cylinder head is flowin like crazy yo. Seriously though a head that is flowing over 300 cfm doesnt like timing. I just did a map
stock h22 block
ported manifold/69mm tb
china ebay header that is killing atleast 10-15 whp imo
dhracing ported head
off the shelf cams
I did a basemap for the car close has I thought from what I have done with the h series all motor tuning. Dave from dhr did the install on the head and cams I wasnt there when they dynoed cleaning up afr Im confident I could of gotten another 3-4 whp.
Car liked a very mild timing map. Imo that car with a proper header,no exhaust and a real inatek is in the 235 whp range. Not to mention that dyno reads way low. The car is raping everything in hawaii.
http://videos.streetfire.net/video/4...ea0005d1cf.htm
mad vteccccc
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Joined: Dec 2002
Posts: 0
Re: JYR's next adventure. Tuning. My on-going thread...
Originally Posted by 88dx
next step spend 2 hours on the dyno to gain .2whp 
No the car is getting a high comp 2.3 block
custom header
and 270 whp. Ill be flying out to hawaii to tune the car
Thread Starter
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Joined: Apr 2004
Posts: 0
Re: JYR's next adventure. Tuning. My on-going thread...
Dyno, ill take it back when its all done. the dyno time is pretty homo. $50 for 2 pulls. More for tuning, and they dont do it by the hour unless you have them tune it. I'll tune it on the street, like everyone else.
JDM dude: "you want a Power FC", I will tune for 25000y ($250)
me: "---- your power FC" :P
I dont plan on rushing into this at all. Slow and easy, and I will learn a little at a time. I'm still waiting on igy to get back with me to chip the ECU and put the datalog cable in. Theres a map on Chris' site, LSvtec, intake mani, ITR pistons, i think im gonna give that a shot for a basemap...and go from there.
Henry: JDM doshound. (sp) Shes about 3.5 months old or so. Little thing thinks it needs to ---- with everything in site.
JDM dude: "you want a Power FC", I will tune for 25000y ($250)
me: "---- your power FC" :P
I dont plan on rushing into this at all. Slow and easy, and I will learn a little at a time. I'm still waiting on igy to get back with me to chip the ECU and put the datalog cable in. Theres a map on Chris' site, LSvtec, intake mani, ITR pistons, i think im gonna give that a shot for a basemap...and go from there.
Henry: JDM doshound. (sp) Shes about 3.5 months old or so. Little thing thinks it needs to ---- with everything in site.
