Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   Engine Performance (https://www.miataturbo.net/engine-performance-56/)
-   -   what cams for turbo race car? (https://www.miataturbo.net/engine-performance-56/what-cams-turbo-race-car-69841/)

18psi 12-11-2012 07:54 PM

hahahah I think you read my mind Leo:laugh:

Reason I asked ctd if he re-dyno'd with boost control is because that graph doesn't really impress me next to yours, and I'd like to see what that car would do with boost hitting as early as possible to see if those cams really are worth a shit. I mean you hit 400 and held it to damn near redline on stockers.........he has nearly nothing til about 5k

ctd do you have dyno plot of 20psi?

viperormiata 12-11-2012 08:39 PM


Originally Posted by soviet (Post 958157)
Sounds gay, I'll stick with stock.

Don't be jelly of dat lump


Originally Posted by soviet (Post 958157)
I was all excited by spending money on cams, a built head and other stuff. But then I dyno'ed 400whp and stopped caring.

I remember when you where getting boners about building a vvt head w/ cams and everyone on the chat saying you were stupid. More mid-range torque would just kill your tires and make you take up 6spd collecting as a hobby. Donky punch dat drive train son :vash2:

soviet 12-11-2012 08:43 PM


Originally Posted by viperormiata (Post 958170)
Don't be jelly of dat lump


I remember when you where getting boners about building a vvt head w/ cams and everyone on the chat saying you were stupid. More mid-range torque would just kill your tires and make you take up 6spd collecting as a hobby. Donky punch dat drive train son :vash2:

lol
yeah :loser:
I'd still like to build it but I'm spending money on racing w2w in lemons this year

JasonC SBB 12-11-2012 11:14 PM


Originally Posted by mr2daj (Post 958124)
so what cam specs would be recommended for peak power at around 7k? +1mm valves, moderately ported... any other info needed?

Yes. What's your revlimit? 5 speed or 6 speed? What rear end?

You will want the power to plateau and then start to dip just before your revlimit. This gives you the most area under the power curve.

Savington 12-12-2012 02:32 AM

I have yet to see a dyno chart from a cammed turbo BP that impresses me.

We're working to change that in 2013, though.

ctdrftna 12-12-2012 06:53 AM


Originally Posted by 18psi (Post 958158)
hahahah I think you read my mind Leo:laugh:

Reason I asked ctd if he re-dyno'd with boost control is because that graph doesn't really impress me next to yours, and I'd like to see what that car would do with boost hitting as early as possible to see if those cams really are worth a shit. I mean you hit 400 and held it to damn near redline on stockers.........he has nearly nothing til about 5k

ctd do you have dyno plot of 20psi?

No dyno on 20psi, what would impress you? Keep in mind the cams and intake were done to rev high. And I'm only reving to 8 when I can be going to 9. I would like to see better boost response, these cams bleed off a lot of compression so I want to play with the gears on the dyno and pull some overlap out, that with ebc I should get better torque and full boost sooner. I don't know why I was in such a rush when I dyno'd the car

miata2fast 12-12-2012 07:52 AM

I laugh every time someone whines when a cammed car does not make power until later in the rpm range, but does not take account that it is still pulling hard at well over 8000 rpm.

mr2daj 12-12-2012 07:57 AM


Originally Posted by JasonC SBB (Post 958215)
Yes. What's your revlimit? 5 speed or 6 speed? What rear end?

You will want the power to plateau and then start to dip just before your revlimit. This gives you the most area under the power curve.

rev limit is 7500rpm but there is nothing stopping it reving a bit higher. Has sealed power valve springs and stainless +1mm valves, carrillo A-beam rods etc.

6 speed box with 3.6 rear end.

Engine is almost back together now so cams are going to be something for the future. Will see what the standard cams are like with some adjustment with the new GTX2867r.

what sort of cam timing figures are working for the mk2 cams and head? i know its something that we will have to play with on the dyno but roughly where to start?

18psi 12-12-2012 08:18 AM


Originally Posted by ctdrftna (Post 958273)
No dyno on 20psi, what would impress you? Keep in mind the cams and intake were done to rev high. And I'm only reving to 8 when I can be going to 9. I would like to see better boost response, these cams bleed off a lot of compression so I want to play with the gears on the dyno and pull some overlap out, that with ebc I should get better torque and full boost sooner. I don't know why I was in such a rush when I dyno'd the car

I wasn't disrespecting you. But I'd want to see more area under the curve.

I know, that's not the point of cams, but when both of you are making around 400, and he's got triple the area under curve, on stock head, its hard to be impressed with your plot.


Originally Posted by miata2fast (Post 958276)
I laugh every time someone whines when a cammed car does not make power until later in the rpm range, but does not take account that it is still pulling hard at well over 8000 rpm.

And soviets car is still pulling hard at 7k...whats your point? if he was making 500 at 8k then itd be different. I'm not whining, just comparing and expecting (or wanting) to see more.

That's why I'd like to see ctd run ALLOFIT

GeneSplicer 12-12-2012 08:55 AM

TSE is coming out with some cams soon for VVT - you might ask if he's planning on cams for non-VVT in the future?

Oops - sorry, didn't realize Sav posted above (stopped reading at Page 2) - yeah, wut he said, 2013 :loser:

ctdrftna 12-12-2012 09:42 AM


Originally Posted by 18psi (Post 958283)
I wasn't disrespecting you. But I'd want to see more area under the curve.

I know, that's not the point of cams, but when both of you are making around 400, and he's got triple the area under curve, on stock head, its hard to be impressed with your plot.



And soviets car is still pulling hard at 7k...whats your point? if he was making 500 at 8k then itd be different. I'm not whining, just comparing and expecting (or wanting) to see more.

That's why I'd like to see ctd run ALLOFIT


Patients is a virtue, I'm gonna try to run on the dyno again this year. Can you post the other dyno chart your comparing mine to, or post a link. Also what turbo and boost pressure. I'm curious to see the torque difference with stock cams

hustler 12-12-2012 09:48 AM


Originally Posted by Savington (Post 958260)
We're working to change that in 2013, though.

Oh man, thanks for telling me that in our late-night google chatting since that might play a role in my engine selection. This is the kind of disrespect that's going to get you banned.

In for group buy.

18psi 12-12-2012 09:48 AM

https://www.miataturbo.net/dynos-tim...-6758-a-68914/

he's running more boost, etc. but the head is stock, so is the IM, and an otherwise very basic setup vs your super fancy one. its not apples vs apples, but like I said I'd really want to see yours on high boost cause right now his plot is 10x more desireable

ctdrftna 12-12-2012 11:34 AM

Well that explains why his graph looks so good, EFR. I think that comparing apples to apples I wouldn't mind seeing his dyno with the 3071r ( that's what I run )

concealer404 12-12-2012 11:44 AM


Originally Posted by aaronc7 (Post 957018)
Webb cams is doing mine. overall they have been very helpful and knowledgeable in helping me pick specs for my goals. I've also heard of Delta and heard good things.

The guys at Delta are good dudes. They're one of the last remaining two places that do cams for the F2 motors. (Colt is the other). I have a Delta 272 waiting to go in my car.

Prices are very reasonable, and i wouldn't be surprised if they had grinds already in their system.

TurboTim 12-12-2012 11:58 AM


Originally Posted by GeneSplicer (Post 958292)
TSE is coming out with some cams soon for VVT - you might ask if he's planning on cams for non-VVT in the future?

Oops - sorry, didn't realize Sav posted above (stopped reading at Page 2) - yeah, wut he said, 2013 :loser:

TSE needs to focus on bringing their turbo kit to market. I was going to get castings done of a few new manifold designs but I decided to refinance my house instead. Fuck PMI. I need to pay for day care.

concealer404 12-12-2012 12:00 PM


Originally Posted by TurboTim (Post 958383)
TSE needs to focus on bringing their turbo kit to market.

TurboTim needs to get some cams for his KL. :vash2:

Savington 12-12-2012 01:31 PM


Originally Posted by TurboTim (Post 958383)
TSE needs to focus on bringing their turbo kit to market.

We are perfectly capable of simultaneously developing more than one product at the same glacial pace, thank you very much :giggle:

TurboTim 12-12-2012 03:27 PM


Originally Posted by concealer404 (Post 958384)
TurboTim needs to get some cams for his KL. :vash2:

Perhaps. I am the cam spool guy at work. But if I need more power I will just add a psi or two more boost.

EDIT: Actually we cannot do the gears on the KL cams so those would be too expensive for me.


Originally Posted by Savington (Post 958419)
We are perfectly capable of simultaneously developing more than one product at the same glacial pace, thank you very much :giggle:

OHHH right, I was thinking BEGI. My bad!

soviet 12-12-2012 05:02 PM


Originally Posted by ctdrftna (Post 958371)
Well that explains why his graph looks so good, EFR. I think that comparing apples to apples I wouldn't mind seeing his dyno with the 3071r ( that's what I run )

EFR is magical and makes up for all the shortcomings of my setup.
Feel free to send me your hotside so I can dyno it :P


All times are GMT -4. The time now is 01:19 AM.


© 2024 MH Sub I, LLC dba Internet Brands