New cam, will it respond well to nitrous?
New cam, will it respond well to nitrous? I called Lunati to get a cam spec'd for me the other day and they called me with the numbers today, I dont really know if it will work well with my combo. I have a stock 2000 ls1, vic. jr intake, holley 750 carb, powerglide tranny w/trans brk, 4000 fti stall, and 4:10 gears in a 1989 mustang notch. I want a cam that makes good power N/A but will respond well to the 150hp nos cheaters kit that I will be using. I will be driving the car some on the street so I want to have decent torque around town but will be spraying occasionally at the track. The cam they specd for me is 278/286 advertised 227/231 @.050 .651/.651 108deg lobe. I figured I needed a little more exh. duration for the bottle to help evacuate the cyl. better. Any help will be greatly appreciated!
Teching In
Joined: Nov 2009
Posts: 43
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From: Mooresville NC
That cam will be very hard on valvetrain with a shorter duration and huge lift ! Also the 108 Lsa is way to tight for the spray to get the most out of it ....Try a Tsp MS3 or MS4 and use a 112-114 Lsa , I am using the MS3 237/242 @.050 603/.609 lift 113 Lsa . These cams are pretty aggressive but do work very well with a 150-300 shot !
The cam can have 700 lift its how long it stays open that gives you the issue, the longer the valve stays open the more of an issue you will have with PTV.
Lift has very little to do with PTV if any in these engines you r looking at duration that has more to do with PTV than anything else.
The cam can have 700 lift its how long it stays open that gives you the issue, the longer the valve stays open the more of an issue you will have with PTV.
The cam can have 700 lift its how long it stays open that gives you the issue, the longer the valve stays open the more of an issue you will have with PTV.
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It depends if the heads are milled. You'll be fine if they are the stock cc. I'm pretty sure you'll be able to get by with milled heads also.
One thing I'd do is lower the lift on the cam. You don't want to be replacing valve springs every 6-8 k miles
One thing I'd do is lower the lift on the cam. You don't want to be replacing valve springs every 6-8 k miles
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Verdad Gallardo Secondly if you have the right spring set up for your cam there should not be an issue with having to do spring changes every 6 to 8K miles. I am running a 23X/24X 614/614 112 on my daily driver. I have Comp 921s and no issues at all. She has 90K on the clock.
Good luck.
Got a cam ordered today... I finally got a cam ordered today but I'm still leary of what it is going to run like. I got it from lunati and the specs are 238/243 @.050 .600/.600 lift and 112LSA. Keep in mind that this is a bone stock 2000 ls1 with a vic. jr and a 750hp carb with a 150 shot. Will it make good power on and off the bottle? I ordered lunati's new gold spring kit good for .660 lift. I am undecided on lifters and pushrods(length), I'm thinking ls6 or ls7 lifter for the money. Give me your opinions.
I finally got a cam ordered today but I'm still leary of what it is going to run like. I got it from lunati and the specs are 238/243 @.050 .600/.600 lift and 112LSA. Keep in mind that this is a bone stock 2000 ls1 with a vic. jr and a 750hp carb with a 150 shot. Will it make good power on and off the bottle? I ordered lunati's new gold spring kit good for .660 lift. I am undecided on lifters and pushrods(length), I'm thinking ls6 or ls7 lifter for the money. Give me your opinions.
enjoy and keep us posted.
I havent ever seen a cam that didnt respond well to nitrous really...Not to many people run a reverse split pattern in these cars unless they have some sort of weird N/A goal. Most off-the-shelf grinds are traditional splits...ie: a nitrous grind. 112 is about as low as I would go if my major go factor was going to be nitrous. 115 is what I ran personally. 244/248 .595/.595 115+2 to be exact.
