|
01-23-2012, 12:15 PM | #955 | |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
|
Quote:
__________________
2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
|
01-23-2012, 12:29 PM | #956 |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
|
I heard good things happened this weekend...
__________________
Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific. |
01-30-2012, 12:06 PM | #957 |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
|
Progress... Loynings head with Jun cams mated to the block. If I did not like my neighbors I would fire it up and do the break-in tonight. It will just have to sit till the weekend.
__________________
2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
01-30-2012, 12:26 PM | #958 |
Drives: '08 Yaris Join Date: Oct 2008
Location: Dover, Ohio
Posts: 7,606
|
We're not worthy.
|
02-02-2012, 02:02 AM | #959 |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
|
Just got the car back together. Tomorrow we make noise.
__________________
2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
02-02-2012, 02:50 PM | #960 |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
|
It's alive. Now to schedule some dyno time.
__________________
2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
02-02-2012, 03:07 PM | #961 |
daily driver
|
does it feel more powerful?
__________________
|
02-02-2012, 03:17 PM | #962 |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
|
My butt dyno could not tell as I sat in the car with the engine revving between 2000-3000 for half an hour breaking in the cams.
We cant exactly drive this on the street. The dyno will show the difference, as will laps at Willow Springs during the next race.
__________________
2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
02-03-2012, 02:24 PM | #963 |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
|
On the dyno next Tuesday.
__________________
2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
02-03-2012, 02:37 PM | #964 |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
|
Excellent. Finally. Thank you.
__________________
Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific. |
02-03-2012, 09:04 PM | #965 |
Drives: 2010 black yaris Join Date: Oct 2010
Location: savannah, ga
Posts: 2,868
|
Sorry, could you run by what else is done to this motor also along with the jun cams? Just as a reference.
__________________
-Derrick- "Racing is important to men who do it well. When you're racing... It's life. Anything that happens before or after, is just waiting." |
02-06-2012, 11:54 AM | #966 |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
|
The Production class rules are fairly restrictive to the newer cars like ours, but we can still open it up a little: intake/exhaust ports opened up to match intake/header to a depth of 1". Multi angle valve job. Head decked to get us closer to our 11-1 max compression ratio.
__________________
2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
02-06-2012, 12:14 PM | #967 |
daily driver
|
how much did you have to take off the head?
__________________
|
02-06-2012, 01:26 PM | #968 |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
|
I have not seen the build sheet/bill yet. Without being able to CC everything (I did not send the bottom end so they could not measure the piston volume) I am sure they went conservative. I know the pistons don't slap the valves, happy about that.
__________________
2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
02-06-2012, 02:10 PM | #969 |
daily driver
|
lol
__________________
|
02-08-2012, 12:37 PM | #970 |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
|
The results are in, the Jun cams are an improvement over the custom grind we had done for the 2010 season, but they are not magic.
With the combination of head work and cams we picked up 12hp when compared to the stock engine we ran in 2011. However, just like with the custom grind cams we lost Tq below 5000rpm when compared to the stock engine - fortunately in this case we only lost 3ft-lbs, where the 2010 cams lost around 18ft-lbs. While I was not jumping for joy at the final numbers, I was happy to see the top end power match our 2010 numbers, while regaining most of our lost Tq. Additionally, the power band with the Jun cams is much broader than the custom grind was, we have nearly 1000 more usable RPMs than we did before. From 5500rpm on we have more HP and Tq than either of the previous setups offered, and the power delivery is smooth. If you are thinking about the Jun 9.5 cams keep in mind these are not a direct bolt-in. Your head will need relief cuts to clear the lobes, and without engine management you will not see the full gains. Overall I give them a thumbs up, but expect to spend about $2k between the cams and head work.
__________________
2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
02-08-2012, 02:17 PM | #971 |
2ZR swap. DO IT! Ask how!
Drives: 09 Meteoric Metallic HB Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
|
So this--combined with reverting the final drive--should make you much more competitive than last season? How's the gearbox coming along?
|
02-08-2012, 02:18 PM | #972 |
Drives: 2010 black yaris Join Date: Oct 2010
Location: savannah, ga
Posts: 2,868
|
On behalf of everyone at yarisworld, thank you. lol
__________________
-Derrick- "Racing is important to men who do it well. When you're racing... It's life. Anything that happens before or after, is just waiting." |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Hood Stay (lift) Instal | 1NZYaris1 | DIY / Maintenance / Service | 31 | 09-22-2016 07:56 PM |
The opposite sex can't stay away with ssk | POORSHA | DIY / Maintenance / Service | 20 | 08-19-2009 10:41 AM |
eTiMaGo Stay safe | Bob_VT | Off-topic / Other Cars / Everything else Discussions | 20 | 12-02-2008 05:31 PM |
Tuned a DBW Toyota yesterday | Turbo&Auto | Performance Modifications | 17 | 08-17-2007 12:04 AM |
why am I always here?! wtf...i cant stay away.. | Blenjar | Off-topic / Other Cars / Everything else Discussions | 5 | 02-26-2007 10:51 AM |