speed density cam
09-03-2007, 06:56 PM
#1
6th Gear Member
Thread Starter
Join Date: May 2006
Location: earleville md
Posts: 10,357
speed density cam
ok, ill keep it short and simple
car is speed density, i wanna keep it that way, **** mass air, lol
so lookin to see what sd happy cam is also fond of nitrous....
havent looked into this at all yet... which is why im posting... i have the opportunity to do a cam instal in school, and want to take advantage of my teachers knowlege.... i know if i do it w. him, itll be degreed perfect for what i want
input?
car is speed density, i wanna keep it that way, **** mass air, lol
so lookin to see what sd happy cam is also fond of nitrous....
havent looked into this at all yet... which is why im posting... i have the opportunity to do a cam instal in school, and want to take advantage of my teachers knowlege.... i know if i do it w. him, itll be degreed perfect for what i want
input?
09-03-2007, 07:20 PM
#3
6th Gear Member
Thread Starter
Join Date: May 2006
Location: earleville md
Posts: 10,357
RE: speed density cam
yea comp is one of the brands i know of... problem is... most ppl advertise their cams w. specs... now with... "good for sd and nitrous"
so im lookin more for a suggestion... or a range of specs to check into?
so im lookin more for a suggestion... or a range of specs to check into?
09-03-2007, 07:23 PM
#4
5th Gear Member
Join Date: Jul 2004
Location: Westminster, MD
Posts: 4,343
RE: speed density cam
Well I'm using the comp xe270hr14 which has a wide lobe seperation like most nitrous cams. Works good with speed density but you need to install a adjustable iac plate or it will surge pretty bad.
09-03-2007, 07:44 PM
#6
6th Gear Member
Join Date: Apr 2007
Location: California
Posts: 10,468
RE: speed density cam
If you go to Comp's site and click on the tech section, at the top right is a link for the online catalog(it's small and not easy to find). It's a .pdf file, pick the engine and it tells you all the specs on the cam and even lists recommended supporting components(springs, retainers etc etc). They don't list the valve timing events vs tdc and bdc.
General rule of thumb for a SD cam is you want less duration and wider lobe seperation than with MAF
http://compcams.com/technical/Catalo.../72-75_230.pdf
IF you opt for a custom grind from someone then you can specify that it needs to run with SD too, whether it is for daily usage etc
General rule of thumb for a SD cam is you want less duration and wider lobe seperation than with MAF
http://compcams.com/technical/Catalo.../72-75_230.pdf
IF you opt for a custom grind from someone then you can specify that it needs to run with SD too, whether it is for daily usage etc
09-03-2007, 08:23 PM
#9
6th Gear Member
Join Date: Nov 2006
Location: Spfld, MA
Posts: 9,240
RE: speed density cam
ORIGINAL: AdderMk2
Zack, dont forget about the fuel filter you installed in the vac line to the MAP sensor... which helps cut down on the "pulses" that the cam sends to the map..
Zack, dont forget about the fuel filter you installed in the vac line to the MAP sensor... which helps cut down on the "pulses" that the cam sends to the map..
i would think it would just muffle the "pulses" instead of lowering the count