Need a 500 rwhp formula
01-02-2011, 08:13 PM
#1
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Need a 500 rwhp formula Here's the known part of the equasion:
LQ9 with an Eagle 406" stroker kit. 90mm FAST, NW 90mm TB, ported Mecham MAF. 4L65E trans, 8.5" 10 bolt with 3.73's. I have a set of F-body headers, but I can;t remember what size they are right now. I want to say 1-7/8"? I'll have to check on that.
I have a set of ported 853's that flow really close to stock aftermarket heads, but I'm not attached to them. If they have to go, they have to go.
The car will have A/C, PS.
Wants:
As close to 500 rwhp as possible, WITH the follwing caveat - the car must be 100% reliable and streetable. Meaning if I want to get in it and drive from NY to Florida, I can.
Looking for head and cam recommendations right now. The FAST 90mm is unported and I aknowledge it may need to be.
LQ9 with an Eagle 406" stroker kit. 90mm FAST, NW 90mm TB, ported Mecham MAF. 4L65E trans, 8.5" 10 bolt with 3.73's. I have a set of F-body headers, but I can;t remember what size they are right now. I want to say 1-7/8"? I'll have to check on that.
I have a set of ported 853's that flow really close to stock aftermarket heads, but I'm not attached to them. If they have to go, they have to go.
The car will have A/C, PS.
Wants:
As close to 500 rwhp as possible, WITH the follwing caveat - the car must be 100% reliable and streetable. Meaning if I want to get in it and drive from NY to Florida, I can.
Looking for head and cam recommendations right now. The FAST 90mm is unported and I aknowledge it may need to be.
01-02-2011, 11:01 PM
#3
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The Edelbrock tunnel ram intake is nice, check if it will fit. 1-7/8 longtubes would be perfect smaller is too small imo. Can't go wrong with AFR 225s and roller rockers. I am there are more cost effective solutions.
You would loose less power with a T56 or TKO. I think you will brake the 10 bolt with 500rwhp if you race often.
Good luck with your build.
You would loose less power with a T56 or TKO. I think you will brake the 10 bolt with 500rwhp if you race often.
Good luck with your build.
Last edited by gluon; 01-02-2011 at 11:08 PM.
01-03-2011, 12:06 AM
#5
Sweet. Another 500rwhp thread. I am happy to see you are using a 406 instead of a 346 like most people ask.
IMO I would look at the newer AFR's or the Trick Flow 215cc or the as cast heads. There have been several threads from Tony Mamo lately with a bigger cubic inch motor.
Doug, AlignC5, I think is his screen name has a pretty kick *** motor in his vette.
Pat G or Tony could spec you a cam.
IMO I would look at the newer AFR's or the Trick Flow 215cc or the as cast heads. There have been several threads from Tony Mamo lately with a bigger cubic inch motor.
Doug, AlignC5, I think is his screen name has a pretty kick *** motor in his vette.
Pat G or Tony could spec you a cam.
01-03-2011, 11:24 AM
#6
if your really serious here is a good read. https://ls1tech.com/forums/dynamomet...-500-rwhp.html
The combination is not cheap and it is not going to be a buy and install type of build you will actually need some attention to the detail but it is possible.
The combination is not cheap and it is not going to be a buy and install type of build you will actually need some attention to the detail but it is possible.
01-05-2011, 06:41 PM
#7
With the added displacement your 500 RWHP goal is reasonably attainable (without breaking the bank)....but what you need is a really good set of heads.
The new AFR 230's would be awesome here....just what the doc ordered to help you get where you want to be.
Cam in the low mid 240's on a 114 LSA to keep it reasonable docile on the street would compliment the package well.
If you have the money to spend I will help you invest it wisely but I wouldn't call it an inexpensive venture by any means.
Cheers,
Tony
The new AFR 230's would be awesome here....just what the doc ordered to help you get where you want to be.
Cam in the low mid 240's on a 114 LSA to keep it reasonable docile on the street would compliment the package well.
If you have the money to spend I will help you invest it wisely but I wouldn't call it an inexpensive venture by any means.
Cheers,
Tony
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01-05-2011, 06:53 PM
#8
Id ditch the 853's, it will be hard to push those to 500 unless you want to sacrifice on driveability some. Use that money towards something with a thicker head deck and its best to match the heads and cam combo for maximum efficiency and the most power under the curve possible. In the end, you will be a lot more satisfied with how the car drives for sure.
01-05-2011, 07:15 PM
#10
WITH those 230 heads and a 102 or ported90 setup, is a cam this big really needed for 500hp? I would think on an Lq9, it would overkill for someone who wants to drive a few states over and still maintain good driveability and decent gas mileage on the way. I would think he could get there with one in the mid 230's range and be okay, esp with the afr heads, no?
Id ditch the 853's, it will be hard to push those to 500 unless you want to sacrifice on driveability some. Use that money towards something with a thicker head deck and its best to match the heads and cam combo for maximum efficiency and the most power under the curve possible. In the end, you will be a lot more satisfied with how the car drives for sure.
Id ditch the 853's, it will be hard to push those to 500 unless you want to sacrifice on driveability some. Use that money towards something with a thicker head deck and its best to match the heads and cam combo for maximum efficiency and the most power under the curve possible. In the end, you will be a lot more satisfied with how the car drives for sure.
Could it hit 500 with a smaller cam and everything that could go right in place....sure....but its not a no brainer by any stretch. The nice thing with the AFR head is the exhaust port is very good and you could run a low 240's single pattern cam with less overlap and better drivability and still make the number. A 242 single pattern on a 114 LSA is reasonably smooth and very responsive in a 400+ CID combination.
-Tony
01-05-2011, 07:18 PM
#11
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With the added displacement your 500 RWHP goal is reasonably attainable (without breaking the bank)....but what you need is a really good set of heads.
The new AFR 230's would be awesome here....just what the doc ordered to help you get where you want to be.
Cam in the low mid 240's on a 114 LSA to keep it reasonable docile on the street would compliment the package well.
If you have the money to spend I will help you invest it wisely but I wouldn't call it an inexpensive venture by any means.
Cheers,
Tony
The new AFR 230's would be awesome here....just what the doc ordered to help you get where you want to be.
Cam in the low mid 240's on a 114 LSA to keep it reasonable docile on the street would compliment the package well.
If you have the money to spend I will help you invest it wisely but I wouldn't call it an inexpensive venture by any means.
Cheers,
Tony
01-06-2011, 02:57 PM
#14
Bolt on piece with the OEM 15' valve angles that accepts all the factory hardware etc.
-Tony
Last edited by Tony Mamo @ AFR; 01-06-2011 at 03:15 PM.
01-08-2011, 03:08 AM
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248* cammed 408ci with AFR225s and FAST 90mm went 460/460 with an A4 and 3500 converter. It had a 9" rear and 3" single exhaust so that ate up some power.
01-08-2011, 04:36 PM
#17
A4 setup in sig is damn close......Bigger exhaust and cat delete I think it would be there Pretty small cam too for cathedrals..... Car is very mild mannered when warmed up and I would drive this car anywhere...Planning a 1300 mile NC to Ohio and back trip this spring.
You will need better heads to reach your goal. Listen to Tony and you can get there
Pretty small cam too for cathedrals..... Car is very mild mannered when warmed up and I would drive this car anywhere...Planning a 1300 mile NC to Ohio and back trip this spring.You will need better heads to reach your goal. Listen to Tony and you can get there
Last edited by SOMbitch; 01-08-2011 at 04:41 PM.
01-08-2011, 05:15 PM
#18
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If I can sell the heads, it will be done. If not, I'll have to live with what I've got for now.
I don't have close to $2000 into my heads, TB and intake so its hard for me to just drop $3500 on a similar setup (40-60 rwhp more) unless I can at least get my money back on what I have. In fact, my entire LQ9 and the Eagle stroker kit I don't have $3500 into...
But hopefully I can get my $ back on the heads and it will happen.
Thanks to everyone who has contributed so far...
I don't have close to $2000 into my heads, TB and intake so its hard for me to just drop $3500 on a similar setup (40-60 rwhp more) unless I can at least get my money back on what I have. In fact, my entire LQ9 and the Eagle stroker kit I don't have $3500 into...
But hopefully I can get my $ back on the heads and it will happen.
Thanks to everyone who has contributed so far...
01-09-2011, 08:36 PM
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i have a afr 205 59cc, g5x3 112lsa and .040 cometics. everything is in great shape. pm if interested.
btw, that combo would be perfect for you. i'm looking for 1800 for everything. im looking to go back to a procharged setup
btw, that combo would be perfect for you. i'm looking for 1800 for everything. im looking to go back to a procharged setup
