Check out my 418 combo.
04-12-2008, 10:31 AM
#1
Check out my 418 combo. Here is what I am planning. Tell me what you think about my combo. The only thing I can see that might hold me back on power is the LG LT's. I would really love to make 550/500 but would be happy with 525/490.
TSP LS3 418 -4cc
TFS 225's 64cc
XER 244/248 .612/.615 114+4
Double roller chain
SCR 12.2 DCR 8.8
Vengeance ported 90/90
LG Pro LT's catted X
Borla stingers
Vararam
I already have the cam, intake, headers, vararam. On my 383 I made 490/445 with TSP heads. With a not so great tune and 477/435rw I ran 10.8's @ 130 with a weak 1.65 60ft. I want to crack 9's on motor and have a solid 9 sec daily driver on a 150 shot. Do you guys see any thing that needs to be changed to hit my goals?
TSP LS3 418 -4cc
TFS 225's 64cc
XER 244/248 .612/.615 114+4
Double roller chain
SCR 12.2 DCR 8.8
Vengeance ported 90/90
LG Pro LT's catted X
Borla stingers
Vararam
I already have the cam, intake, headers, vararam. On my 383 I made 490/445 with TSP heads. With a not so great tune and 477/435rw I ran 10.8's @ 130 with a weak 1.65 60ft. I want to crack 9's on motor and have a solid 9 sec daily driver on a 150 shot. Do you guys see any thing that needs to be changed to hit my goals?
04-12-2008, 06:58 PM
#4
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Yeah I agree with LS2Bait. Need a bigger bump stick. The cam I run is a Futural 630/633 252/256 114+4 and it is my daily driver. Good tune helps alot with big cams also.
04-12-2008, 08:07 PM
#6
im going with a 247/255 .624/.624 114+4 in mine (pimp new comp lsl lobes). i think i could have gone bigger but i drive this car ALOT so i wanted it liveable.
im also using a tfs 215 cc head as i already had them and they should really help fatten up the torque curve imo.
im also using a tfs 215 cc head as i already had them and they should really help fatten up the torque curve imo.
04-12-2008, 08:09 PM
#7
I was running this cam in my 383 with no issues accept the off throttle hunting. But I amost have that all taken care of. So I figured with the extra 35 ci I should be able to get away with a larger cam. What kind of idle vacuum are you seeing with these larger cams? That 244/248 in my 383 was only doing 9.5"hg at idle.
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04-13-2008, 07:41 AM
#9
I am currently in the south and I don't think any one around here has ever even heard of E85 let alone being able to get it at the pump. But we do have 93 redialy available which is nice. I thind 8.8 DCR is the most I am willing to go. With a larger cam the DCR will drop but I am stuck with that cam right now. I will probably have Pat G spec me something larger later.
04-13-2008, 05:53 PM
#11
How small of a cam are you going to run to get 8.6 DCR from 11.3 SCR? It must be a low 230's cam on a 114 or something. Or I am using a bad calculator. I have used the same calculator for all the engines I have done and it seems to be pretty accurate. Let me in on your secret.
04-13-2008, 09:07 PM
#12
How small of a cam are you going to run to get 8.6 DCR from 11.3 SCR? It must be a low 230's cam on a 114 or something. Or I am using a bad calculator. I have used the same calculator for all the engines I have done and it seems to be pretty accurate. Let me in on your secret.
04-14-2008, 05:40 PM
#13
Well I talked to Ron today about the combo. Here is what we came up with. I am going to go through SDPC for a 416. They gave me a great price, it will handle a 250 shot, and has a rebuild left in it among other benefits. Thanks Ron and Brian. I am going to go with the TFS 235's milled some to achieve my desired compression ratio. Ron made 537/525rw on his 416 with 235's and a cam in the high 230's. If I can make those numbers with my slightly larger cam I would be extreamly happy. He did have 1 7/8" headers where I have the LG Pro's. Any way, that is the new plan.
Brett
Brett
04-15-2008, 09:55 PM
#14
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Well I talked to Ron today about the combo. Here is what we came up with. I am going to go through SDPC for a 416. They gave me a great price, it will handle a 250 shot, and has a rebuild left in it among other benefits. Thanks Ron and Brian. I am going to go with the TFS 235's milled some to achieve my desired compression ratio. Ron made 537/525rw on his 416 with 235's and a cam in the high 230's. If I can make those numbers with my slightly larger cam I would be extreamly happy. He did have 1 7/8" headers where I have the LG Pro's. Any way, that is the new plan.
Brett
Brett
04-15-2008, 10:02 PM
#15
Well I talked to Ron today about the combo. Here is what we came up with. I am going to go through SDPC for a 416. They gave me a great price, it will handle a 250 shot, and has a rebuild left in it among other benefits. Thanks Ron and Brian. I am going to go with the TFS 235's milled some to achieve my desired compression ratio. Ron made 537/525rw on his 416 with 235's and a cam in the high 230's. If I can make those numbers with my slightly larger cam I would be extreamly happy. He did have 1 7/8" headers where I have the LG Pro's. Any way, that is the new plan.
Brett
Brett
i just got done spending the last 2 hrs inspecting it 
04-17-2008, 09:03 PM
#17
Anubis. I saw that post as well with the LG's, but wasn't the combo low on power any way due to mis-matched parts? I will have to go back and read it. I will see how they perform and then make my decision after that.
LS2. I ordered my stuff today from SDPC. I had to go with the Scat set up and stock bolts to stay in my budget. Your block looks great. I can't wait to see some numbers. It is going to be an interesting comparison between the two combos. Smaller heads and larger cam with different rotating assembly vs. larger head, smaller cam, smaller header.
LS2. I ordered my stuff today from SDPC. I had to go with the Scat set up and stock bolts to stay in my budget. Your block looks great. I can't wait to see some numbers. It is going to be an interesting comparison between the two combos. Smaller heads and larger cam with different rotating assembly vs. larger head, smaller cam, smaller header.
04-17-2008, 09:58 PM
#19
Anubis. I saw that post as well with the LG's, but wasn't the combo low on power any way due to mis-matched parts? I will have to go back and read it. I will see how they perform and then make my decision after that.
LS2. I ordered my stuff today from SDPC. I had to go with the Scat set up and stock bolts to stay in my budget. Your block looks great. I can't wait to see some numbers. It is going to be an interesting comparison between the two combos. Smaller heads and larger cam with different rotating assembly vs. larger head, smaller cam, smaller header.
LS2. I ordered my stuff today from SDPC. I had to go with the Scat set up and stock bolts to stay in my budget. Your block looks great. I can't wait to see some numbers. It is going to be an interesting comparison between the two combos. Smaller heads and larger cam with different rotating assembly vs. larger head, smaller cam, smaller header.
04-18-2008, 06:00 AM
#20
I forgot we where comparing two different cars and drive trains. I don't think the Vette IRS really burns up all that much hp contrary to popular belief. But you will be quicker at the track for sure. I am hoping to nail a 9.999@137 NA when I get every thing dialed in. I also think at the most I am going to run a 150 shot if I go the nitrous route. Brian was more than confident that the scat stuff and stock bolts would hold that.