new 416 ls3 is here..
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From: Miami, Fl. - Hurricane Highway
What pretty good difference that cut-out made. I agree with these guys the rear may be robbing you of some good power, but then again i rather have an unbreakable (knock on wood) rear end, than have on that shows me more power but wont hold it for long.
-Joel
-Joel
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From: in your closet
it runs alright. im not impressed with it. no smoke. not even a hint on the dyno. the car made decent power before on the old combo and i had the rear in then so im not going to blame it on the rear. im sure its a lot of things that just arent jiving right. buuuut im not putting anything else into it. so it will have to do. ill just tell everyone its a heads/ cam motor lol.
it runs alright. im not impressed with it. no smoke. not even a hint on the dyno. the car made decent power before on the old combo and i had the rear in then so im not going to blame it on the rear. im sure its a lot of things that just arent jiving right. buuuut im not putting anything else into it. so it will have to do. ill just tell everyone its a heads/ cam motor lol.
for my car.
I'm gonna throw one out here..........
That's better than LS7 torque and HP, alot better.
This setup isn't optimized with the parts necessary for those big cubes, either. Big *** cam and 3.9" heads with a Dana. But it meets that 350 ft-lb at 3k rpm that not alot of people have, unless big cubes or FI. Nothing lower than expected here at all.
I'd put on drag slicks and beat down every Mustang I saw, and love it!! It's a street brawler through and through!!
That's better than LS7 torque and HP, alot better.
This setup isn't optimized with the parts necessary for those big cubes, either. Big *** cam and 3.9" heads with a Dana. But it meets that 350 ft-lb at 3k rpm that not alot of people have, unless big cubes or FI. Nothing lower than expected here at all.
I'd put on drag slicks and beat down every Mustang I saw, and love it!! It's a street brawler through and through!!
Sorry bro. I didn't mean it that way. My car went went 10.8's@130 with less power was all I was trying to say. Your car is actually set up for draggin so you will cut way better times. It is a stout motor with alot of room to grow. I am going to tell people mine is just a cam/exhaust car. lol
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I made the numbers in my sig.
My bottle neck is likely the cats I am running which are coming out soon, plus I am an A4 running a fuddle.
I am guessing that with the converter swap I just did plus running catless (retune) I should be 500-510rwhp and maybe 480rwtq.
Another thing to take into account with numbers on these 416 builds is that a lot of folks are going small on the cam or going small on the heads. I imagine we would see some really good numbers if someone just went big overall.
Here is my first run on the motor with the old Fuddle 3200 stall through cats:
http://www.youtube.com/watch?v=34olvDMp_lo
I'm thinking I will pick up about 3mph with this new circle d as well.
My bottle neck is likely the cats I am running which are coming out soon, plus I am an A4 running a fuddle.
I am guessing that with the converter swap I just did plus running catless (retune) I should be 500-510rwhp and maybe 480rwtq.
Another thing to take into account with numbers on these 416 builds is that a lot of folks are going small on the cam or going small on the heads. I imagine we would see some really good numbers if someone just went big overall.
Here is my first run on the motor with the old Fuddle 3200 stall through cats:
http://www.youtube.com/watch?v=34olvDMp_lo
I'm thinking I will pick up about 3mph with this new circle d as well.
Well I am running TFS 235's on mine with 12.01 SCR with a 244/248 cam. I know this isn't very big but we will see what numbers come back. I am just going to have to upgrade my headers to 1 7/8" to take full advantage of the combo.
^^ What makes you think that is not a big cam? Here is an example for you.. My cam for my 457 is around a 248/260 113 +3. One theory to making power and a fast car is the Hp and tq from the low to mid rpm range. Huge cams dont help in this regard. Drag cars run huge cams because they are leaving the line at 5000 rpms where the power band is.. This is not good in a street car and promotes bad gas mileage as well as a slow car. Properly camming your car (and the heads) is essential to making power and that doesnt mean get the biggest cam you can find and stuff it in there...lol
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There are some people running 235/240's in LS1's and LS2's.
lol
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Joined: Dec 2004
Posts: 236
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^^ What makes you think that is not a big cam? Here is an example for you.. My cam for my 457 is around a 248/260 113 +3. One theory to making power and a fast car is the Hp and tq from the low to mid rpm range. Huge cams dont help in this regard. Drag cars run huge cams because they are leaving the line at 5000 rpms where the power band is.. This is not good in a street car and promotes bad gas mileage as well as a slow car. Properly camming your car (and the heads) is essential to making power and that doesnt mean get the biggest cam you can find and stuff it in there...lol
I 'only' got 490 but I also have a great power under the curve with my 235/240 which I am happy with.
If I went bigger it would likely only be 240/245 or their abouts.
And the only reason I bring it up is because people are comparing 416 numbers to 402's and 408's. Strangely the 402/8's are making close to the same HP but significantly less TQ, as you would expect from the bigger cubed 416.
But for those building L92 or LS3 416's it is frustrating putting the money into it when you end up with nearly the same HP as a 402/8.
I personally think it has to do with the combo's that are being put together as builders havn't had a whole lot of time perfecting them, or like I said above, those who have been building the 416 have been going small on either the head/cam/or restrictive exhaust in order to have a DD.
Then of course you have the whole issue of one shops dyno versus another shops. I sure this is a controversial subject but I am sure some folks have noticed certain shops dyno'ing significantly higher than others with nearly the same combo's. it is like running at ATCO versus any other track in the nation.
Last edited by Fast GTO; May 10, 2008 at 09:51 AM.
