what cams for turbo race car? - Page 3 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 12-11-2012, 08:54 PM   #41
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,186
Total Cats: 2,583
Default

hahahah I think you read my mind Leo

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 ****. 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?
18psi is offline   Reply With Quote
Old 12-11-2012, 09:39 PM   #42
NB/VVT Connoisseur
iTrader: (23)
 
viperormiata's Avatar
 
Join Date: Aug 2008
Location: Key West
Posts: 6,071
Total Cats: 253
Default

Quote:
Originally Posted by soviet View Post
Sounds gay, I'll stick with stock.
Don't be jelly of dat lump

Quote:
Originally Posted by soviet View Post
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
viperormiata is offline   Reply With Quote
Old 12-11-2012, 09:43 PM   #43
Elite Member
iTrader: (10)
 
soviet's Avatar
 
Join Date: Jan 2010
Location: VA
Posts: 3,518
Total Cats: 258
Default

Quote:
Originally Posted by viperormiata View Post
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
lol
yeah
I'd still like to build it but I'm spending money on racing w2w in lemons this year
soviet is offline   Reply With Quote
Old 12-12-2012, 12:14 AM   #44
Elite Member
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

Quote:
Originally Posted by mr2daj View Post
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.
JasonC SBB is offline   Reply With Quote
Old 12-12-2012, 03:32 AM   #45
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,365
Total Cats: 1,326
Default

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.
Savington is offline   Reply With Quote
Old 12-12-2012, 07:53 AM   #46
Senior Member
iTrader: (1)
 
Join Date: Mar 2008
Location: Cromwell CT
Posts: 1,106
Total Cats: 48
Default

Quote:
Originally Posted by 18psi View Post
hahahah I think you read my mind Leo

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 ****. 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
ctdrftna is offline   Reply With Quote
Old 12-12-2012, 08:52 AM   #47
Elite Member
iTrader: (2)
 
miata2fast's Avatar
 
Join Date: Aug 2009
Location: Dover, FL
Posts: 2,896
Total Cats: 109
Default

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.
miata2fast is offline   Reply With Quote
Old 12-12-2012, 08:57 AM   #48
Junior Member
Thread Starter
iTrader: (-1)
 
Join Date: Jun 2010
Posts: 218
Total Cats: 5
Default

Quote:
Originally Posted by JasonC SBB View Post
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?
mr2daj is offline   Reply With Quote
Old 12-12-2012, 09:18 AM   #49
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,186
Total Cats: 2,583
Default

Quote:
Originally Posted by ctdrftna View Post
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.

Quote:
Originally Posted by miata2fast View Post
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
18psi is offline   Reply With Quote
Old 12-12-2012, 09:55 AM   #50
Elite Member
iTrader: (12)
 
GeneSplicer's Avatar
 
Join Date: Sep 2009
Location: Birmingham, AL
Posts: 2,006
Total Cats: 147
Default

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
GeneSplicer is offline   Reply With Quote
Old 12-12-2012, 10:42 AM   #51
Senior Member
iTrader: (1)
 
Join Date: Mar 2008
Location: Cromwell CT
Posts: 1,106
Total Cats: 48
Default

Quote:
Originally Posted by 18psi View Post
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
ctdrftna is offline   Reply With Quote
Old 12-12-2012, 10:48 AM   #52
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by Savington View Post
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.
hustler is offline   Reply With Quote
Old 12-12-2012, 10:48 AM   #53
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,186
Total Cats: 2,583
Default

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
18psi is offline   Reply With Quote
Old 12-12-2012, 12:34 PM   #54
Senior Member
iTrader: (1)
 
Join Date: Mar 2008
Location: Cromwell CT
Posts: 1,106
Total Cats: 48
Default

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 )
ctdrftna is offline   Reply With Quote
Old 12-12-2012, 12:44 PM   #55
Elite Member
iTrader: (3)
 
concealer404's Avatar
 
Join Date: Aug 2011
Posts: 8,465
Total Cats: 782
Default

Quote:
Originally Posted by aaronc7 View Post
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.
concealer404 is offline   Reply With Quote
Old 12-12-2012, 12:58 PM   #56
Elite Member
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,485
Total Cats: 248
Default

Quote:
Originally Posted by GeneSplicer View Post
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
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. **** PMI. I need to pay for day care.
TurboTim is offline   Reply With Quote
Old 12-12-2012, 01:00 PM   #57
Elite Member
iTrader: (3)
 
concealer404's Avatar
 
Join Date: Aug 2011
Posts: 8,465
Total Cats: 782
Default

Quote:
Originally Posted by TurboTim View Post
TSE needs to focus on bringing their turbo kit to market.
TurboTim needs to get some cams for his KL.
concealer404 is offline   Reply With Quote
Old 12-12-2012, 02:31 PM   #58
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,365
Total Cats: 1,326
Default

Quote:
Originally Posted by TurboTim View Post
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
Savington is offline   Reply With Quote
Old 12-12-2012, 04:27 PM   #59
Elite Member
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,485
Total Cats: 248
Default

Quote:
Originally Posted by concealer404 View Post
TurboTim needs to get some cams for his KL.
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.

Quote:
Originally Posted by Savington View Post
We are perfectly capable of simultaneously developing more than one product at the same glacial pace, thank you very much
OHHH right, I was thinking BEGI. My bad!
TurboTim is offline   Reply With Quote
Old 12-12-2012, 06:02 PM   #60
Elite Member
iTrader: (10)
 
soviet's Avatar
 
Join Date: Jan 2010
Location: VA
Posts: 3,518
Total Cats: 258
Default

Quote:
Originally Posted by ctdrftna View Post
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
soviet is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
91 1.6l turbo complete part out. Tony the Tiger Miata parts for sale/trade 63 12-29-2016 03:23 AM
[CT] 1999 Mazda Miata 10th Anniversary Edition - $5800 Jike Spingleton Cars for sale/trade 3 09-20-2016 05:33 PM
Turbo 1995 Miata Low mileage Clean Tekel Cars for sale/trade 29 02-05-2016 05:16 PM
1991 Turbo Miata partout tottestad Miata parts for sale/trade 18 09-14-2015 08:52 PM
New here, saying hi, here's what I'm workin with. SuperSneakySecretSquirrel Meet and Greet 5 09-06-2015 09:30 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:10 PM.