"Parmas" Motor

[Parmas]

Thanks for the info changchewsoon

What valve springs are you intending to use? Regarding cams I think I leave them stock don't want to mess everthing at once

RE AJUSA bolts, heavier doesn't meen better but the quality of metal used. Do you know if they match exactly the stock bolts? I mean no rethreading etc..

RE Knife edging crank, Did you asked your tuner the reason not doing it?

[cali yaris]

RE Knife edging crank, Did you asked your tuner the reason not doing it?

rob explained this point quite well.

I'm about to tune upwards of 25 psi, on stock crank and stock valve springs. I just don't see the need to spend money there when it's not necessary.

[Parmas]

What fuel octane are you using Garm?

[cali yaris]

91 with water/meth injection. Should be able to run 25 psi on pump gas.

[Parmas]

Originally Posted by cali yaris

91 with water/meth injection. Should be able to run 25 psi on pump gas.

I thought you have a better (directly from pump) octane than 91 there!

[rob323]

Stock valve springs are designed to work with the stock rev limit and the stock lift and ramp angles on the cams. If you change any of those, only then do you need to look at a heavier valve spring.

[cali yaris]

I thought you have a better (directly from pump) octane than 91 there!

I can get 100 down the street, and I can buy buckets of any race gas I want, but I don't need it with the meth injection.

[cali yaris]

Stock valve springs are designed to work with the stock rev limit and the stock lift and ramp angles on the cams.

Correct. Although I will say we are doing fine up to 7200 so far, all valve parts are stock.

[rob323]

That's good to know there's some head room left in the valve train, thanks Garm.

[cali yaris]

don't worry if they float, I'll post it!

[rob323]

Do they float/ bounce?

[Parmas]

Originally Posted by cali yaris

Correct. Although I will say we are doing fine up to 7200 so far, all valve parts are stock.

I thought you rev limit to 6500? Can you give more info on the 7200?

Does it increase power or remain constant between 6.5-7.2?

[changchewsoon]

Originally Posted by Parmas

Thanks for the info changchewsoon

What valve springs are you intending to use? Regarding cams I think I leave them stock don't want to mess everthing at once

RE AJUSA bolts, heavier doesn't meen better but the quality of metal used. Do you know if they match exactly the stock bolts? I mean no rethreading etc..

RE Knife edging crank, Did you asked your tuner the reason not doing it?

i just got a call from my tuner that my cylinder head just came back, im gonna go snap pictures tomorrow and i'll ask him about the valve springs.

reason why the shop that was working on my head changed the valve springs is because we told him that we wanted to increase the rev limit to at least 8,000 rpm or above.

the AJUSA bolts does match the stock bolts, the only think im not able to comment is the quality until we use it.

as for the knife edging crank, i did not asked him why we do not need to do it.

[Parmas]

Originally Posted by changchewsoon

i just got a call from my tuner that my cylinder head just came back, im gonna go snap pictures tomorrow and i'll ask him about the valve springs.

reason why the shop that was working on my head changed the valve springs is because we told him that we wanted to increase the rev limit to at least 8,000 rpm or above.

the AJUSA bolts does match the stock bolts, the only think im not able to comment is the quality until we use it.

as for the knife edging crank, i did not asked him why we do not need to do it.

Wow man 8000rpm seems too much for a 1NZFE although I wish you all success in your project. I think in your case, knife edging the crank will help you more reach that goal.

Keep us updated

[cali yaris]

we wanted to increase the rev limit to at least 8,000 rpm or above.

Looking forward to your dynos, that will be really cool!

@ Parmas: we have the limiter at 7200 but if you've looked at my dynos, it quits making power about 6500.

It MIGHT make power up higher with the new custom intake manifold. Next tuning session will tell us a lot more.

[Parmas]

Originally Posted by cali yaris

@ Parmas: we have the limiter at 7200 but if you've looked at my dynos, it quits making power about 6500.

Yes I saw that before but I thought you got it making power till 7200 after that.

BTW I heard some ppl saying that water injection reduces power output when used. I mean if you run the same setup with for example 16psi with water injection and dyno compare it without, it will result to a slight power decrease. Is this true?

[eTiMaGo]

possibly, any volume taken up by water vapor is not filled with air/fuel mixture... Not sure how big of a difference it would make, but it's a small compromise to be able to run on pump gas!

[cali yaris]

BTW I heard some ppl saying that water injection reduces power output when used.

"some people saying" means nothing to me. Show me some results and I will be very interested, although I'm not trading away the ability to run high boost on pump gas - that is way too much fun to give up!