When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Good write up EG. Too many people don't realize everything that has to be beefed up, and the associated compromises that have to be made, when you go high HP.
This write up contains some very useful information that I encourage everyone to read not just the individuals who are just beginning to modify their cars. Stephen posted this write up to encourage folks to do their homework and find out exactly what they want before they start spending money. I cannot speak for all tuners out there but I know that it can be a big disappointment when you do a job for someone and once it is finished they become displeased for whatever reason. So please take the information above and use it to your benefit and don't be afraid to ask the questions you need answers to. As always we are here to answer those questions so please don't hesitate to give us a call.
Stephen....I have a Vararam, putting Corsa Pace Cars on in a couple weeks. Would my next step be headers then a cam or can I go a mild cam first. I want a rough idle.
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14
Originally Posted by LMH4C5
Stephen....I have a Vararam, putting Corsa Pace Cars on in a couple weeks. Would my next step be headers then a cam or can I go a mild cam first. I want a rough idle.
Larry
I would do all the bolt ons before thinking about a cam. Rough idle is determined by the Lobe Separation Angle (LSA) and the duration of the cam.
A tighter LSA (108-112) will give you a choppier idle, but at the cost of a narrow powerband higher in the RPM range. A wider LSA (114-118) will give you a flatter torque curve and more midrange power but at the cost of a smoother, less choppy idle.
Increase the duration, and even a 114LSA chops like crazy. So you get the best of both worlds.
All of my cams are on a 114LSA and they all chop like a lumberjack