a purpose built low down torque monster
Thread Starter
Teching In
Joined: Aug 2004
Posts: 38
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a purpose built low down torque monster im looking into a stroker say 402 or so.. the problem is too many guys get the power bug and put in massive cams and end up with something not to my taste.
Anyone put a REAL small cam in a stroker, say a 208 or 212 or something? ive seen katech i think it was on here put a cam this size in a 427 and the torque was phenomenal.
This would be for a daily driver that will be driven between 1000-4000 so even something starting 2500 is too late
ORRR could you even keep the 5.7L and with a turbo combo run a small a/r on the turbo to make it boost off idle, how would this compare?
I have no interest in peak or top end power or even lumpy cam lope, just brutal torque and throttle response! so what is the best combo for what i'm looking for?
Anyone put a REAL small cam in a stroker, say a 208 or 212 or something? ive seen katech i think it was on here put a cam this size in a 427 and the torque was phenomenal.
This would be for a daily driver that will be driven between 1000-4000 so even something starting 2500 is too late
ORRR could you even keep the 5.7L and with a turbo combo run a small a/r on the turbo to make it boost off idle, how would this compare?
I have no interest in peak or top end power or even lumpy cam lope, just brutal torque and throttle response! so what is the best combo for what i'm looking for?
There was a guy on here somewhere that a 383 with stock heads/valves running something like a 216/220-114 and he said it made sick torque all over the powerband and still pulled to 7000 rpms. I'm running a somewhat small cam in my 383 (230/232-114+4) & I love it!
LS7 w/Small Cam I just completed an LS7 swap into my CTS-V with a very mild cam (218*/232* on a 118* spread).
The engine is all stock LS7 except for the reciprocating assembly, camshaft, pushrods, valve springs and wet sump.
It makes 380 lbs/ft at 2000, passes 400 lbs at 2700, peaks at 446.81 at 5250, and remains above 400 lbs until 6150. It still has 360 lbs/ft at 6600, where the pull was stopped. That's 3450 rpm of over 400 lbs/ft, and about 5000 rpm of over 360 lbs/ft. Peak horsepower was 469.02 at 6000. These figures are through functional converters (and the stock CTS-V air intake tube).
The LS7 intake runner length (& volume)/head volume probably doesn't do much for the low rpm torque, but so far I'm pretty satisfied. It will lug down to 1200-1400 in the upper gears with no issues and has better driveability that the LS6 did.
The engine is all stock LS7 except for the reciprocating assembly, camshaft, pushrods, valve springs and wet sump.
It makes 380 lbs/ft at 2000, passes 400 lbs at 2700, peaks at 446.81 at 5250, and remains above 400 lbs until 6150. It still has 360 lbs/ft at 6600, where the pull was stopped. That's 3450 rpm of over 400 lbs/ft, and about 5000 rpm of over 360 lbs/ft. Peak horsepower was 469.02 at 6000. These figures are through functional converters (and the stock CTS-V air intake tube).
The LS7 intake runner length (& volume)/head volume probably doesn't do much for the low rpm torque, but so far I'm pretty satisfied. It will lug down to 1200-1400 in the upper gears with no issues and has better driveability that the LS6 did.
i don't have a stroker,but this winter i'm putting a 216/224.580/.571,112lsa+3 in my 6.0 GTO..won't exactly be a TQ monster,but should give me a good jump in TQ in the low-mid range,and peak at about 6000rpms..like you i love low end power...
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This is why they made magnachargers. You have the right idea though. What platform will this be going into?
I was worried about the same thing initally, but my 402 went into my vette. Only weighs 3115 without me in it. makes 400wtq from 3000 to 6800rpms. at 2000 rpms makes 350tq.
Dougie
I was worried about the same thing initally, but my 402 went into my vette. Only weighs 3115 without me in it. makes 400wtq from 3000 to 6800rpms. at 2000 rpms makes 350tq.
Dougie
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FormerVendor
Joined: Mar 2006
Posts: 1,540
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From: Hell AFB
Check this out, http://www.exoticperformanceplus.com...Car.php?car=39
All tim wanted was mega torque, just a snappy responsive street car. Hes not the kind of guy that wanted to rev the motor to 6k. With input and parts from Tony Mamo at AFR, we ended up making a hell of a motor.
Then came the mod bug and we did a APS turbo kit, and well you see that made the previous motor on steroids, this IS power under the curve.
All tim wanted was mega torque, just a snappy responsive street car. Hes not the kind of guy that wanted to rev the motor to 6k. With input and parts from Tony Mamo at AFR, we ended up making a hell of a motor.
Then came the mod bug and we did a APS turbo kit, and well you see that made the previous motor on steroids, this IS power under the curve.
A MTI G1 or a LG G5X1 in a 402ci should give you what you are looking for. MTI has put a G1 in a 427 and had great results. If you do a search you should find some graphs. The torque was above 400rwtq by 2000rpm.
Also have your compression above 11.3.........
Also have your compression above 11.3.........
Thread Starter
Teching In
Joined: Aug 2004
Posts: 38
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Originally Posted by Jake@EPP
Check this out, http://www.exoticperformanceplus.com...Car.php?car=39
All tim wanted was mega torque, just a snappy responsive street car. Hes not the kind of guy that wanted to rev the motor to 6k. With input and parts from Tony Mamo at AFR, we ended up making a hell of a motor.
Then came the mod bug and we did a APS turbo kit, and well you see that made the previous motor on steroids, this IS power under the curve.
All tim wanted was mega torque, just a snappy responsive street car. Hes not the kind of guy that wanted to rev the motor to 6k. With input and parts from Tony Mamo at AFR, we ended up making a hell of a motor.
Then came the mod bug and we did a APS turbo kit, and well you see that made the previous motor on steroids, this IS power under the curve.
FormerVendor
Joined: Mar 2006
Posts: 1,540
Likes: 0
From: Hell AFB
I would definatly give AFR a ring on what they can do for you with the cylinder heads. A properly matched cam / intake / heads and a decent amount of cubes and compression would have you a nice snappy NA motor.
The big question is, do you just want mega torque at wide open? Or do you want a very snappy car that is responsive and torquey at all throttle angles?
The big question is, do you just want mega torque at wide open? Or do you want a very snappy car that is responsive and torquey at all throttle angles?
Thread Starter
Teching In
Joined: Aug 2004
Posts: 38
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Originally Posted by Jake@EPP
I would definatly give AFR a ring on what they can do for you with the cylinder heads. A properly matched cam / intake / heads and a decent amount of cubes and compression would have you a nice snappy NA motor.
The big question is, do you just want mega torque at wide open? Or do you want a very snappy car that is responsive and torquey at all throttle angles?
The big question is, do you just want mega torque at wide open? Or do you want a very snappy car that is responsive and torquey at all throttle angles?
but yeah definitely part throttle response, im talking 1cm (half inch maybe to you guys) and you're zooming away. and when 2cm, zooming away more.. WOT is rarely going to happen, like i said a REAL street car.. and a real daily driver to me rarely to never will see full throttle, i dont even want to use half
10 Second Club
Joined: Apr 2002
Posts: 1,755
Likes: 2
From: Cincinnati, Ohio
I use a 214/224 in a 429. It does have great street power, I also use a 2600 converter to take advantage of the torque. It does cost me the bragging rights for a high peak hp number but the power band is the way I like it.
TECH Veteran
Joined: Dec 2001
Posts: 4,117
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From: Ft. Lauderdale, FL, USA
Originally Posted by ECOJET
im looking into a stroker say 402 or so.. the problem is too many guys get the power bug and put in massive cams and end up with something not to my taste.
Anyone put a REAL small cam in a stroker, say a 208 or 212 or something? ive seen katech i think it was on here put a cam this size in a 427 and the torque was phenomenal.
This would be for a daily driver that will be driven between 1000-4000 so even something starting 2500 is too late
ORRR could you even keep the 5.7L and with a turbo combo run a small a/r on the turbo to make it boost off idle, how would this compare?
I have no interest in peak or top end power or even lumpy cam lope, just brutal torque and throttle response! so what is the best combo for what i'm looking for?
Anyone put a REAL small cam in a stroker, say a 208 or 212 or something? ive seen katech i think it was on here put a cam this size in a 427 and the torque was phenomenal.
This would be for a daily driver that will be driven between 1000-4000 so even something starting 2500 is too late
ORRR could you even keep the 5.7L and with a turbo combo run a small a/r on the turbo to make it boost off idle, how would this compare?
I have no interest in peak or top end power or even lumpy cam lope, just brutal torque and throttle response! so what is the best combo for what i'm looking for?
.
Thread Starter
Teching In
Joined: Aug 2004
Posts: 38
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Originally Posted by Quickin
SC'er
.
.
which? its obviously not a vortech/pro they are very average at low rpm.. and thats where i want the torque.
its almost a debate of a roots/pd vs stroker for low down, ive been in strokers but never a pd/roots car. if anyone has comparative dyno sheets showing the rpm and torque id love to see!
Thread Starter
Teching In
Joined: Aug 2004
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Originally Posted by 2001WS6Vert
I use a 214/224 in a 429. It does have great street power, I also use a 2600 converter to take advantage of the torque. It does cost me the bragging rights for a high peak hp number but the power band is the way I like it.
TECH Veteran
Joined: Dec 2001
Posts: 4,117
Likes: 0
From: Ft. Lauderdale, FL, USA
Originally Posted by ECOJET
which? its obviously not a vortech/pro they are very average at low rpm.. and thats where i want the torque.
its almost a debate of a roots/pd vs stroker for low down, ive been in strokers but never a pd/roots car. if anyone has comparative dyno sheets showing the rpm and torque id love to see!
its almost a debate of a roots/pd vs stroker for low down, ive been in strokers but never a pd/roots car. if anyone has comparative dyno sheets showing the rpm and torque id love to see!
But a sc'er on 402 will be a monster. I don't know much about them to recommend a certain model, but a medium sized centrifugal sc'er should do the trick and not too expensive.
.
TECH Enthusiast
Joined: May 2007
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build a 402 or similar displacmenet engine with a set of ET ported LS6 heads ls6 intake use a 78mm stock size TB for great response and a warmed up 600 lift Zo6 c5 camshaft.
Silly TQ drives like gas runs smooth and get some serious grunt dow the road. Ignore the overlap happy hipsters.
Basically a 220/222 duration with 116.5 lobe seperation will get it done. Real smooth and it'll pass an IM240 test.
Silly TQ drives like gas runs smooth and get some serious grunt dow the road. Ignore the overlap happy hipsters.
Basically a 220/222 duration with 116.5 lobe seperation will get it done. Real smooth and it'll pass an IM240 test.
Originally Posted by ECOJET
im looking into a stroker say 402 or so.. the problem is too many guys get the power bug and put in massive cams and end up with something not to my taste.
Anyone put a REAL small cam in a stroker, say a 208 or 212 or something? ive seen katech i think it was on here put a cam this size in a 427 and the torque was phenomenal.
This would be for a daily driver that will be driven between 1000-4000 so even something starting 2500 is too late
ORRR could you even keep the 5.7L and with a turbo combo run a small a/r on the turbo to make it boost off idle, how would this compare?
I have no interest in peak or top end power or even lumpy cam lope, just brutal torque and throttle response! so what is the best combo for what i'm looking for?
Anyone put a REAL small cam in a stroker, say a 208 or 212 or something? ive seen katech i think it was on here put a cam this size in a 427 and the torque was phenomenal.
This would be for a daily driver that will be driven between 1000-4000 so even something starting 2500 is too late
ORRR could you even keep the 5.7L and with a turbo combo run a small a/r on the turbo to make it boost off idle, how would this compare?
I have no interest in peak or top end power or even lumpy cam lope, just brutal torque and throttle response! so what is the best combo for what i'm looking for?
