"Parmas" Motor

[Parmas]

Originally Posted by cali yaris

First of all CONGRATS on reaching this landmark! I know the project has been a challenge but your persistence is paying off!

You should be able to burnout and launch in 2nd gear for best drag results. Does your management allow you to program a 2-step?

I'll go check what wheels/tires I am running for drag racing, I think they work really well.

Thanks garm I really appreciate your feedback.

Yes the ecu is capable of a 2 step launch control and there is actually a switch installed on the handbrake to enable it when I want to. This was never tried since it was installed recently so I am not sure which are the correct ignition retard timing and enrichment settings for a good launch on the strip.

I would probably try your advice of 2nd gear and begin with launch control from 5000rpm -20 Degrees ignition till I get it right.

Next friday I booked for a Japs nightout drag strip so I am trying to get an average quarter mile time.

[cali yaris]

my two-step is programmed to flood the exhaust mani and build boost for launch at 16 psi. I don't think we changed the timing just for that.

I launch at 5500, but 5000 will probably be fine too. The slicks change things a LOT, you can launch much harder. I'm still getting used to that.

[Parmas]

Originally Posted by cali yaris

What did the curve look like up top?

The curve inreases gradually until reaching 6800rpm. Above that range there wasn't any gain on power just a constant peak 211BHp till 7000rpm.

I should be able to get a curve printout for your reference.

What slicks brand are you using and rim size/profile/wide measurement?

[Parmas]

I came across a friend which have a new race gate (external wastegate) for sale on a bargain price. He intended to put it into his own but scrapped the idea.

The race gate is 38mm and with an unknown spring pressure = unknown lowest boost pressure, BUT that is not a problem right now.

The problem is LIMITED SPACE to put it in mate to exhaust manifold and downpipe which is really a complicated thing to do....

This gate would cost me the price of its own + fabricating custom work + hassle of bumping into other fuel / oil / water / cable components so after all this I ask >>>

1 . IS IT WORTH THE HASSLE OF DOING THIS?

2. WHAT ARE THE ADVANTAGES AND DISADVANTAGES OF THIS GATE VS INTERNAL?

3. WOULD THE ENGINE BE AT ANY RISK OF BOOST SPIKES BY KEEPING THE INTERNAL WASTEGATE?

CHEERS

[cali yaris]

Not sure it's worth it. Nice to be able to change out the spring (or the whole thing) when needed for the boost you are going to run. But if you're using a boost controller, you should be somewhat protected from surges and spikes either way.

I think that at your current position with the project, it's not a top priority to re-do a bunch of stuff.

[ilikerice]

as the saying goes, "dont fix what already works"..

[Paris vvt-i]

From what i know:

advantages of external
1)better boost control
2)less backpressure
3)lower EGTS

advantages of internal
only cheap

I ordered an emusa external for my tsport turbo as well

[Parmas]

Originally Posted by Paris vvt-i

From what i know:

advantages of external
1)better boost control
2)less backpressure
3)lower EGTS

advantages of internal
only cheap

I ordered an emusa external for my tsport turbo as well

You forgot the disadvantages ! :)

My only issues in regards with the external wastegate is :

1. limited space to fit it on my custom manifold
2. A hassle of more hot pipes under the hood !

[cali yaris]

sooooo.... is your wheel hop eliminated yet?

[Parmas]

Originally Posted by cali yaris

sooooo.... is your wheel hop eliminated yet?

No Sir, I didn't have time to work on it since I am solving some other issues regarding high idle. It seems that the 2ZZ throttle body I bought this year has actually more air breathing than expected because of some wear and tear on the butterfly.

I am waiting for another and hope it is good this time !

I never knew I would have all these issues!

[cali yaris]

It never stops. I just did this to my clutch:

[Blown_xa]

wow, I have never seen a pressure plate break in half! Looks like a 6 puck? Thought you had exedy stage 2?

[cali yaris]

I had Exedy Stage 1 a long time ago. The picture is a Clutchmasters Stage 4!

[Parmas]

Originally Posted by cali yaris

I had Exedy Stage 1 a long time ago. The picture is a Clutchmasters Stage 4!

OUCH!! How much did km did you do with that clutch ?

I tought clutchmasters are good though!

Its time for a new better one !

Will the below fit the yaris :)

[cali yaris]

^ It was on the car well over a year, with a lot of street driving, some track dates and some drag racing.

Clutchmasters makes a very good twin disc, as you show above. But you are still looking at a minimum of $1200. Even as a dealer, I decided I can't afford to go that far with it.

CM was good enough to build me a new Stage 4 with 300-400 more pounds of pressure. Should last a good long while.

I'd rather have the clutch break first -- better than the transmission.

[Parmas]

Originally Posted by cali yaris

^ It was on the car well over a year, with a lot of street driving, some track dates and some drag racing.

Clutchmasters makes a very good twin disc, as you show above. But you are still looking at a minimum of $1200. Even as a dealer, I decided I can't afford to go that far with it.

CM was good enough to build me a new Stage 4 with 300-400 more pounds of pressure. Should last a good long while.

I'd rather have the clutch break first -- better than the transmission.

Agree on the transmission quote ...

Although I would thought it would last longer for sure!

Mine was bought used which only god knows how much miles had. Stage 3 Spec clutch and still clamping hard after 4 years

[ilikerice]

Do you think its possible, that being there are only a handful of people who run 350+ whp on a 1nz motor, that the disigners probably laughed when someone said, "lets make a stage 4 for a 1nz". Then got bored and half-assed it because in thier mind they are chuckling, that 1nz will blow up before this clutch see's a flywheel.

just a scenario played thru my head when I saw Garms attachment.

[cali yaris]

Stage 3 Spec clutch and still clamping hard after 4 years

Which includes about 3 years of down time? LOL Just saying.
There are plenty of pictures of fried Spec clutches out there too. I don't think it's the brand. A CM Stage 2 lasted 3+ years on my 450 whp Scion tC - go figure.

@ilikerice -- maybe, but I doubt it. Clutchmasters is a serious company, and not as large as you'd think.

It's possible the pressure plate was defective or warped, then failed suddenly. The good news is that they stepped up and took care of me; just like I do with my customers.