Going for broke - Toyota Yaris Forums

scioncrew · 09-03-2012, 10:46 PM

man i love hearing tires rip like that. good job Blown xa cant want to see more from you..

Blown_xa · 09-04-2012, 11:31 PM

Quote:

Originally Posted by scioncrew

man i love hearing tires rip like that. good job Blown xa cant want to see more from you..

Thanks man!

Blown_xa · 02-26-2013, 10:18 PM

Hey guys, just wanted to chime in with an update. Because I exceeded my turbo's rating, I ended up hurting a seal on the exhaust side of the turbo. This motor has been in my car for about 4 years now, and it has taken everything I've thrown at it. It has gotten to the point in my mind, that I almost expect something to give. So why not have some fun?

I installed a t3/4 50trim turbo, rated for about 100hp more than my previous one. I immediately put the car on the dyno for a tune, Things were looking good, as just on wastegate boost this turbo produced 30whp more compared to the previous t3 60trim on wastegate boost. A more laggy powerband, but to be expected.

I got a bit greedy on pump gas....... went up to 34psi, detonated clyinder 4 to the point of sparkplug coming apart and dropping into the cylinder. I knew we were pushing our luck, and water methanol ends up not distributing evenly past 30psi in a stock intake manifold. Garms manifold with direct port water methanol injection would be a good idea.

I did a quick leakdown test to assess the damage, 40 out of 90psi in clyinder 4. not good haha. I shoved a hose down the sparkplug tube into the combustion camber, attached other end to a vacuum. Got as much as the plug fragments as I could. Threw a new plug in, started the car........ heard peices floating in the cylinder stil haha!

At this point, I was like ''ef it, do a pull'' right before we did a pull, the fragments must have passed through into the exhaust ( not before going through my brand new turbo

) . I turned the boost down a bit, did a pull, car made the same power!!!!!!! I just can't kill this motor.

Another note, a stock head just drops power past 7000rpm. We raised rev limter to 7500rpm to give me more gear for autocross, but that's it.

Another note, stock head bolts hold just fine! I had serious detonation at 34psi, and even with 50k miles on this motor the head didn't lift..... AMAZING.

I ended up making 56whp more, over the previous turbo on pump gas.

09-03-2012, 10:46 PM	#1
scioncrew Drives: SCION tC Join Date: Nov 2008 Location: HB Posts: 99	man i love hearing tires rip like that. good job Blown xa cant want to see more from you.. __________________ 05 Scion tC allmotor 350+ hp 9.34@144mph 05 Scion tC sfwd 880hp 9.96@147mph 05 Scion xB 280hp 12.97@104mph 07 Toyota Yaris 357hp 12.80@107mph

02-26-2013, 10:18 PM	#3
Blown_xa Drives: Scion xA Join Date: Oct 2009 Location: Virginia Posts: 449	Hey guys, just wanted to chime in with an update. Because I exceeded my turbo's rating, I ended up hurting a seal on the exhaust side of the turbo. This motor has been in my car for about 4 years now, and it has taken everything I've thrown at it. It has gotten to the point in my mind, that I almost expect something to give. So why not have some fun? I installed a t3/4 50trim turbo, rated for about 100hp more than my previous one. I immediately put the car on the dyno for a tune, Things were looking good, as just on wastegate boost this turbo produced 30whp more compared to the previous t3 60trim on wastegate boost. A more laggy powerband, but to be expected. I got a bit greedy on pump gas....... went up to 34psi, detonated clyinder 4 to the point of sparkplug coming apart and dropping into the cylinder. I knew we were pushing our luck, and water methanol ends up not distributing evenly past 30psi in a stock intake manifold. Garms manifold with direct port water methanol injection would be a good idea. I did a quick leakdown test to assess the damage, 40 out of 90psi in clyinder 4. not good haha. I shoved a hose down the sparkplug tube into the combustion camber, attached other end to a vacuum. Got as much as the plug fragments as I could. Threw a new plug in, started the car........ heard peices floating in the cylinder stil haha! At this point, I was like ''ef it, do a pull'' right before we did a pull, the fragments must have passed through into the exhaust ( not before going through my brand new turbo ) . I turned the boost down a bit, did a pull, car made the same power!!!!!!! I just can't kill this motor. Another note, a stock head just drops power past 7000rpm. We raised rev limter to 7500rpm to give me more gear for autocross, but that's it. Another note, stock head bolts hold just fine! I had serious detonation at 34psi, and even with 50k miles on this motor the head didn't lift..... AMAZING. I ended up making 56whp more, over the previous turbo on pump gas. __________________ Ptuning.com