Turbo build questions.

Turbo and Supercharger discussion
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By berg89
- Thu Mar 25, 2010 5:50 am #183545 Im getting arps for $80. What staged cam should i be deciding to get?
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By forcefedEG
- Thu Mar 25, 2010 12:34 pm #183565
berg89 wrote:Im getting arps for $80. What staged cam should i be deciding to get?


how much power do you want to make, and do you want to have to buy springs, valves, retainers ect.?

By AutoXCivic
- Thu Mar 25, 2010 1:55 pm #183584
berg89 wrote:well i am not trying to go over 300. Are eagle rods good enough for that range of power? Do the FJ R rods come with the pistons? Im not trying to spend that much on just rods either. I will be using arp's. Ill try to get what exactly what turbo it is later. so what would be a cheap good injectors for this build?


Yes you can get a set of the FJ R spec rods with vitara pistons for $425 + shipping on their website.

By AutoXCivic
- Thu Mar 25, 2010 1:57 pm #183585
berg89 wrote:Im getting arps for $80. What staged cam should i be deciding to get?


For 300whp stock cam should be fine. If you are on a budget you're probably going to be looking at regrinds, in which case you will need a spare cam core or be able to take some down time on your car to remove the cam and send it in to be reground. Personally I'm going to be going with an exospeed SV909 regrind as I have heard many good things about them. Also if you decide to go with an aftermarket cam ... invest in an adjustable cam gear.

By AutoXCivic
- Thu Mar 25, 2010 2:01 pm #183589
forcefedEG wrote:
berg89 wrote:Im getting arps for $80. What staged cam should i be deciding to get?


how much power do you want to make, and do you want to have to buy springs, valves, retainers ect.?


Valves aren't really neccesary until you start building a full race engine and need to lose every little bit of weight from the valve train that you possibly can, or get a couple extra 0.x of compression without machine work. Many low level aftermarket cams (most stg 1s and some stg 2s) will be fine with stock springs and retainers ... as long as you maintain the stock redline. Personally I would opt for springs at the very least when purchasing an aftermarket cam, just for piece of mind.

Do it once ... do it right.
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By forcefedEG
- Thu Mar 25, 2010 2:08 pm #183591
AutoXCivic wrote:Valves aren't really neccesary until you start building a full race engine and need to lose every little bit of weight from the valve train that you possibly can, or get a couple extra 0.x of compression without machine work. Many low level aftermarket cams (most stg 1s and some stg 2s) will be fine with stock springs and retainers ... as long as you maintain the stock redline. Personally I would opt for springs at the very least when purchasing an aftermarket cam, just for piece of mind.

Do it once ... do it right.


Id go with a bisimoto cam for a sohc... but your power goals should be ok with a stock cam... stay away from a regrind as they are pure junk... there allmost allways inaccurate and are never ground on center... id keep a stock cam before id ever get a regrind.... I would keep your stock cam and jus get a cam gear like was said before...

as far as valves,springs,retainers go.... most every aftermarket cam ive seen recomends a stiffer spring, except a stage one if your staying in your stock revlimit... (type r stuff works well for this on a b series) and if you do springs, esp. for a stg2 or more, id highly recomend valves... i have seen too many people skimp on buying valves and do stiffer springs, ad high rpms, with the stiffer spring slams the valve shut at high rpms, it will stretch and or tweak the valve and fatigue it, then the head of the valve breaks off as they are not made out of a stong enough material to handle this... and i dnt really need to say what happens from there... (there is a je piston hangin on the wall in a friends shop that backs this up... a stock valve ruiend a 500dollar set of JE pistons) and id highly recomend retainers if you have the other 2 things done... stock retainers do not like high rpms at all,,, i have seen the valve keepers pull thru stock retainers after about 9000 on a b series or under certian ammounts of boost.


but all of my experience with this is on a b series not a sohc... i cant see it being too different its all basicly the same when it comes down to it...

By AutoXCivic
- Sat Mar 27, 2010 3:19 am #183946 Bisimoto cams are regrinds as well ... at least they were until recently, and even now many of them are regrinds.

Exospeed is good company ... they do regrinds and I've never heard anything bad about them, as far as product quality. One member over on d-series.org gained 25 whp on his boost build using an Exospeed cam.

Delta is another company that does cam grinding ... again there are people who swear by them, and I've never heard anyone bad mouth their work. And the price is good from what I hear, and the customer service is stellar.

I've seen/heard of stock d series springs and retainers going to 8K. In any case with boost you don't need to rev really high to get power like you do with an N/A setup and since you are not trying for more than 300 whp leave the head alone. The stock head will work just fine for that power level, I think I've heard of people getting 350 or so on a completely stock head.
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By berg89
- Sat Mar 27, 2010 11:57 pm #184116 well i guess if its ok to leave the head stock then that's what ill do. just porting it out an putting a adjustable cam gear on. How high would you guys recommend to rev if i decide to do stiffer valve springs. I wanna go around 300 whp.
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By forcefedEG
- Mon Mar 29, 2010 12:33 pm #184341
AutoXCivic wrote:Bisimoto cams are regrinds as well ... at least they were until recently, and even now many of them are regrinds.



im pretty sure the guy i know got a new one, because he had to wait on them to make it, it was a custom grind for his setup, but im not 100% sure either....

By AutoXCivic
- Mon Mar 29, 2010 4:32 pm #184370
forcefedEG wrote:
AutoXCivic wrote:Bisimoto cams are regrinds as well ... at least they were until recently, and even now many of them are regrinds.



im pretty sure the guy i know got a new one, because he had to wait on them to make it, it was a custom grind for his setup, but im not 100% sure either....


The custom grinds are done from billet cores, as are many (or all) of the SOHC VTEC cams. Most of the others are regrinds that you have to send a core in for (or I think you might be able buy one from bisi). Still can't go wrong with a Bisi cam from what I hear.

By AutoXCivic
- Mon Mar 29, 2010 4:35 pm #184372
berg89 wrote:well i guess if its ok to leave the head stock then that's what ill do. just porting it out an putting a adjustable cam gear on. How high would you guys recommend to rev if i decide to do stiffer valve springs. I wanna go around 300 whp.


Talk to your tuner. Since it appears you are building the engine you will want the rev limit set close to where you stop making power. If you weren't I wouldn't recommend raising it too far over stock ... maybe 8K. The cam or the turbo will be your limiting factors here. Either the cam will stop making power or the turbo will run out of breath as you get into the higher RPMs. You'll want to have your rev limit adjusted accordingly.
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By forcefedEG
- Mon Mar 29, 2010 4:37 pm #184374
AutoXCivic wrote: Still can't go wrong with a Bisi cam from what I hear.


yeah i hear there top notch for a single cam...
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By justin_bisimoto
- Mon Mar 29, 2010 11:25 pm #184452
AutoXCivic wrote:
The custom grinds are done from billet cores, as are many (or all) of the SOHC VTEC cams. Most of the others are regrinds that you have to send a core in for (or I think you might be able buy one from bisi). Still can't go wrong with a Bisi cam from what I hear.


Just wanted to come in hear and maybe clear up some confusion :)
Our D-series non-vtec cams are regrinds and do require a core to be submitted. Depending on what motor you have we may be able to get you a core. Our Vtec camshafts for the D-series are done from Billet Blanks and do not require a core.

Hope that helps to clear up what looks to be alittle bit of confusion. :thumb:

By AutoXCivic
- Tue Mar 30, 2010 5:11 am #184528
justin_bisimoto wrote:
AutoXCivic wrote:
The custom grinds are done from billet cores, as are many (or all) of the SOHC VTEC cams. Most of the others are regrinds that you have to send a core in for (or I think you might be able buy one from bisi). Still can't go wrong with a Bisi cam from what I hear.


Just wanted to come in hear and maybe clear up some confusion :)
Our D-series non-vtec cams are regrinds and do require a core to be submitted. Depending on what motor you have we may be able to get you a core. Our Vtec camshafts for the D-series are done from Billet Blanks and do not require a core.

Hope that helps to clear up what looks to be alittle bit of confusion. :thumb:


I was close. Thanks for clearing that up. I just did a quick browse through the website, and took a little from my memory.

Your post is way clearer than mine. :thumb:
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