trk manifold w/thumper cam LQ4
07-27-2009, 09:45 PM
#1
trk manifold w/thumper cam LQ4 Going into a 71 chevelle w/ 4l80e combo. I realize that the trk intake runs out about 5500 rpm, Question is, will the comp cams thumper cam be a good fit for the lq4/auto. This is for a cruise/car show car NOT a race car. Im not lookin for the top notch in performance BUT again I don't want a dog either. I want this car to "sound" like a muscle car and run respectivly. I would like any input ideas.... Ive read and read about this AND used the search function also..
Rick
Rick
07-27-2009, 10:46 PM
#2
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How bout a hot cam? They are not too much larger than a LS6 cam, make decent power and sound wicked with a nice exhaust. You can also have the truck intake ported to extend your upper rpm limit.
I thought the thumpr cams were designed for carbed motors? Which one were you looking at?
I thought the thumpr cams were designed for carbed motors? Which one were you looking at?
Last edited by djsanchez2; 07-27-2009 at 10:57 PM.
07-28-2009, 01:04 PM
#4
As long as your not trying to keep and go too deep into the throttle, You should be ok... get a good tune... but as you already know.. RPM range is limited on the upper end. but those Truck intake to make a great low end torque monster.
But there are other manifold (LS1 are cheap, LS6 are the best bang for the buck)..
if you can cover up the truck intake.. these are not the best looking intake..
But there are other manifold (LS1 are cheap, LS6 are the best bang for the buck)..
if you can cover up the truck intake.. these are not the best looking intake..
07-30-2009, 12:38 PM
#7
the truck 90 mm intake will be a good addition and can use 90mm tb and is kind of like the ls6 version of the truck intakes.
i would go with a milled stock heads, thinner gaskets, and a LPE GT11 cam. for that excellent throttle response and of course uncapped exhaust will make even the stock cam sound like a muscle car. so put a c/o in your 3in. exhaust.
i would go with a milled stock heads, thinner gaskets, and a LPE GT11 cam. for that excellent throttle response and of course uncapped exhaust will make even the stock cam sound like a muscle car. so put a c/o in your 3in. exhaust.
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08-05-2009, 10:39 PM
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Hey fly I called TR today and said the best cam for the 6.0 is the mother thumper cam # 54-601-11. John over at TR has this cam for $599 with the comp cams springs # 26918-16 and the tr 7.4 pushrods. This would be all you need to make sure you have no issues with the swap. I am sure if you wanted to you can change the timing chain , retainers, rockers, lifters, and valve locks, but that just means more $$$$
08-07-2009, 11:42 PM
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fly, the thumper cam was made for the 4.8l 5.3l 5.7l the mother thumper was for the 6.0l or a built 5.3l
you can find the build for the motor here. I will posting pics of everything as I go along.
https://ls1tech.com/forums/conversio...-manifold.html
you can find the build for the motor here. I will posting pics of everything as I go along.
https://ls1tech.com/forums/conversio...-manifold.html
08-08-2009, 07:48 AM
#15
With the Zex system I had, I could jet up or down and it was 100 rwhp, hopefully the Brand X will be higher.
08-08-2009, 07:52 AM
#16
http://www.performancetrucks.net/for...d.php?t=397720
08-08-2009, 11:39 AM
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Ls1 has the high end gain and the truck has it in the low end. Our heavy cars need the low end hp/tq. That is why I when with a ported ls2 intake. Their is several threads on how a ported ls2 will have a gain of 5-7 hp over a stock fast intake.
