"Parmas" Motor

[yaris-me]

It looks mean. Does it sound mean?

[cali yaris]

awesome hood, very aggressive.

I would like to see (when you have time) a closer pic of the BOV flange, it looks interesting.

Also interior - any gauge set up?

[blacksandiegovitz]

Originally Posted by cali yaris

awesome hood, very aggressive.

I would like to see (when you have time) a closer pic of the BOV flange, it looks interesting.
Also interior - any gauge set up?

Look like a standard HKS bov flange to me , ie the bov sits in the circle flange and is held in with a C-clip .

Amazing project man I've been following your build and am stoked to see you finally got it all together in the car and running I can't wait to see the dyno #'s

[changchewsoon]

wow parmas, your car looks great!! its a job nicely done! the intercooler is so sexy!

[Parmas]

Thanks guys I appreciate your comments and these are what keep me updating!

The BOV flange is the standard HKS weld on flange as described blacksandiegovitz in his post.

RE: Yaris-me post... well it sounds awesome as described by many here although I need a good camera for you to enjoy the sound

I don't think of dyno it for now but will not miss a video on street.... Please let me enjoy it a while !!!

BTW here is a shot from inside incl. my lovely girl

[Parmas]

Today I went up to a drag race to check how all is working out. Well it was noticed that injectors are maxing out at (about 98% inj duty cycle) 9psi 6000rpm with an average afr of 11:1.

Well although the car runs fine I am sure I will not get a good time with this low boost (thinking of 14s blehh). What do you recommend about the injectors, Brand? ***cc? Type?

I think garm can help me on this :)

Also engine gives startup problems when cold or when not using it for a half an hour or so? Sometimes needs 3 starts to ignite, is this normal or the plugs are too on the cold side?

Thanks!

[cali yaris]

what plugs, and what gap? The gap can make a difference.

11:1 is on the rich side, you'll get a better result around 11:7

sorry, what management again?
Is your car using the ECU's stock cold-start program?

[Blown_xa]

nice. I am curious about final results.

These injectors should work well... http://www.ptuning.com/html/search-r...nd=dw&cmbYear=

they will drop right in and use factory plugs.

Do you have the stock fuel pump?

[Parmas]

Originally Posted by cali yaris

what plugs, and what gap? The gap can make a difference.

11:1 is on the rich side, you'll get a better result around 11:7

sorry, what management again?
Is your car using the ECU's stock cold-start program?

Plugs are Denso Iridium power IK series. Gap is 0.4mm with 5Kohm resistor. Part no is IK22#4

Management is Gotech PROX full standalone, stock ecu not used. Ecu has a map for startup fuelling appropriately adjusted by tuner. I just want to assure that problem is not coming from plugs heat range.

RE: Blown_xa injectors link... why you say "should work fine" are they tested before on a 1NZ?

RE: Air to fuel ... can anyone tell me the appropriate range the afr should be at :

- Idle 1200rpm
- 2Krpm until boost
- above 3500rpm after boost?

Also, since I am considering replacing the injectors to above 600cc, does the engine will startup up rich or lean with a fuel map tune on 340cc inj?

See attachment from a log run at first gear @ 6Krpm ..injector duty are 98%

[Blown_xa]

yes when I mean "should work fine", i mean as long as your fuel management can handle the increased size. The injectors themselves will drop right in. Same denso casing as factory. Depending on your projected whp choose between the 550's and 750's. Im thinking 550's would be plenty considering you have a return set-up.

[cali yaris]

.4mm is .0157 inches. Mine were gapped at .028 and we brought that down to .024 when tuning on the dyno. I think your gap is very tight!

A/F on my car:
Idle: 14.1-14.7
Cruising: 13.0 - 13.5 is the range I've seen, more or less
under boost: 12.5 down to 11.7 at full boost, depends on load etc.

hope that helps.

[Parmas]

Originally Posted by cali yaris

.4mm is .0157 inches. Mine were gapped at .028 and we brought that down to .024 when tuning on the dyno. I think your gap is very tight!

A/F on my car:
Idle: 14.1-14.7
Cruising: 13.0 - 13.5 is the range I've seen, more or less
under boost: 12.5 down to 11.7 at full boost, depends on load etc.

hope that helps.

What Brand are the plugs? Thus this gap difference might be related to octane difference? I am running 90 octane so sure your fuel ignites better so thats what might the gap serve for!

Thanks for that afr reading garm, I never seen 12s on either level! BTW you are sure that these readings are good for lower octane level fuel?

What do you think about the TC injectors Garm? Do you recommend these for my setup? Is there anyone using them on his motor?

[Blown_xa]

the tC injectors (factory) would be ok for low boost. I was not able to get past 149whp with them as they maxed out. Seeing as you have a return set up im thinking they can put out more juice.

As far as AFR ratio and octane rating, timing is what is most important to optimize power and to prevent knock/detonation. The only way to optimize timing is on the dyno though. AFR should be targeted the same regardless of octane rating.

We tuned 2 customers tC's for 400whp, one with 91 octane (what was readily availible to that customer) and one with 93 octane. AFR were the same, timing is what has to be adjusted(less timing for 91)

[cali yaris]

Also, since I am considering replacing the injectors to above 600cc, does the engine will startup up rich or lean with a fuel map tune on 340cc inj?

you'll be under 5% duty cycle at idle, so could be a little rich, might need more tuning all around. Overall though, your management should maintain correct A/F.

[Parmas]

I don't know how much do you mean by low boost but since I built the engine it's none sense to stay low boosted!

I am projecting 16psi on a Garret T28 though!

[Blown_xa]

Originally Posted by Parmas

I don't know how much do you mean by low boost but since I built the engine it's none sense to stay low boosted!

I am projecting 16psi on a Garret T28 though!

oh yea factory tC injectors would be way too small. 550's would be good

[changchewsoon]

Hi Parmas,

Just want to share with you that I purchased a set of 445cc customized injectors from FIC for my rebuilt next month, but I can't tell you whether they'll work great until its in.

Am already thinking they might be too small as I'm not converting to a return setup? :(

[Parmas]

Originally Posted by changchewsoon

Hi Parmas,

Just want to share with you that I purchased a set of 445cc customized injectors from FIC for my rebuilt next month, but I can't tell you whether they'll work great until its in.

Am already thinking they might be too small as I'm not converting to a return setup? :(

Mine are 340cc with a return setup running rich at all times @ 10psi. So the 445cc should work fine till 250BHP.