turbo ls2 in a 245" top dragster
07-09-2011, 12:54 AM
#21
thanks for the replies guys, i figured the cam was going to be to small, but i got it with a bunch of parts that i bought really cheap from a guy that had to sell his project do to getting married. ouch! i bought over 4k worth of ls parts for 2500bucks. methanol is doable, not sure about the no water? i am really torn between carb or efi? i don't want to run an ic, and i know blow thru has much cooler intake charge do to the fuel being atomizied up higher in the intake track. tranny is a pg shorty with a 1.80 low 3.90 rear gear on a 33.5 tire. it was set up for a big cube big block.
07-09-2011, 01:00 AM
#22
can someone chime in about the msd 6ls-2 box with boost. can you use a btm with it? another option is to run a front mount dist. and use my 7al-3 and a btm. i had a wegner front mount kit for my street car but i sold it and went with a 6ls and truck coils. now i wish i still had it.
07-09-2011, 04:26 AM
#23
TECH Apprentice
can someone chime in about the msd 6ls-2 box with boost. can you use a btm with it? another option is to run a front mount dist. and use my 7al-3 and a btm. i had a wegner front mount kit for my street car but i sold it and went with a 6ls and truck coils. now i wish i still had it.
the accelleration rate of these turbo engines in light cars needs engine management ( ignition control, boost control)
getting the dragster off the start line consistantly takes alittle time
with the 1.80 long gear, the car can be 'touchy'
i run 1.65 low gear to calm the car down,( also makes it faster in the middle section of the track on the shift recovery)
07-09-2011, 04:31 AM
#24
TECH Apprentice
thanks for the replies guys, i figured the cam was going to be to small, but i got it with a bunch of parts that i bought really cheap from a guy that had to sell his project do to getting married. ouch! i bought over 4k worth of ls parts for 2500bucks. methanol is doable, not sure about the no water? i am really torn between carb or efi? i don't want to run an ic, and i know blow thru has much cooler intake charge do to the fuel being atomizied up higher in the intake track. tranny is a pg shorty with a 1.80 low 3.90 rear gear on a 33.5 tire. it was set up for a big cube big block.
dont think injection fuel into the intake runners , will not give enough time to cool the intake air charge....
that 1.8 , 3.9 ratio will be agressive
07-09-2011, 01:59 PM
#25
thanks for your input crashly, i need advice from someone who has a similar setup. your car looks like it launches soft, but 1.03 60ft is awsome! i would be happy running the same numbers that you are. my car is certed to 6.50 so i am good there. what engine management system are you running? what rear gear and tire size? i have not bought my tranny yet, so i am not stuck with a 1.80 low. i found a good deal on one but havent pulled the trigger on it. what do you think about a 1.76, or not enogh difference to matter?
07-09-2011, 06:21 PM
#26
TECH Apprentice
thanks for your input crashly, i need advice from someone who has a similar setup. your car looks like it launches soft, but 1.03 60ft is awsome! i would be happy running the same numbers that you are. my car is certed to 6.50 so i am good there. what engine management system are you running? what rear gear and tire size? i have not bought my tranny yet, so i am not stuck with a 1.80 low. i found a good deal on one but havent pulled the trigger on it. what do you think about a 1.76, or not enogh difference to matter?
i run mechanical injection, like endlerle stuff
use :
msd 8973 ignition controller , home made boost controller, msd 10+
3.7 gear, 1.65 PG, 34.5-17-16 tyres
that 1.76 will get smashed , in under 100 passes ( lol it makes a 'loud' bang on the start line ...lol )
PTC make **** hot converters
PTC got some nice trans too, just get the low gear swopped out
07-09-2011, 06:26 PM
#27
TECH Apprentice
http://www.youtube.com/watch?v=RSWOWo95NyE
turbo VS 14/71
same class , weight break, yellow blown car has 100 more cubes, he also has clutch- lenco deal
( but i farked up, and couldn't steer it, with the front wheels in the air..)
the 60 ft was steady, but the tall low gear allows it to recover quick ...
turbo VS 14/71
same class , weight break, yellow blown car has 100 more cubes, he also has clutch- lenco deal
( but i farked up, and couldn't steer it, with the front wheels in the air..)
the 60 ft was steady, but the tall low gear allows it to recover quick ...
07-09-2011, 06:31 PM
#28
TECH Apprentice
07-09-2011, 11:31 PM
#29
Launching!
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Yeah Im not seeing why you even want to go beyond a stock 6.0... a stock lq4 went well into the 1000+fwhp and lived for a very long time.^ Im only half kidding though.
It's a hell of a lot cheaper to go really fast when you're running 1500lbs less than most...
Check out this thread: https://ls1tech.com/forums/forced-in...k-6-0-lit.html
Feel free to spend what you want, but there are quite a few people running VERY fast for VERY cheap. The question is: are you a racer, or a hotrodder?
BTW I've had the very same thought, I wanna go fast so why not grab a good used dragster chassis and go play. Maybe when this drag boat is done
I'm not trying to insult any of the really fast guys though. I dont know jack about what it really takes to go that fast... just throwing in my two cents, which may or may not be worth two cents.
It's a hell of a lot cheaper to go really fast when you're running 1500lbs less than most...
Check out this thread: https://ls1tech.com/forums/forced-in...k-6-0-lit.html
Feel free to spend what you want, but there are quite a few people running VERY fast for VERY cheap. The question is: are you a racer, or a hotrodder?
BTW I've had the very same thought, I wanna go fast so why not grab a good used dragster chassis and go play. Maybe when this drag boat is done
I'm not trying to insult any of the really fast guys though. I dont know jack about what it really takes to go that fast... just throwing in my two cents, which may or may not be worth two cents.
Last edited by Adam Connell; 07-09-2011 at 11:36 PM.
08-07-2011, 06:00 PM
#31
9 Second Club
I seen this quoted on another forum in Australia. I dont have access to the magazine, and cannot find it online. But it is interesting.
And given a lightweight chassis, you really dont need the torque a larger capacity engine might produce.
And given a lightweight chassis, you really dont need the torque a larger capacity engine might produce.
Originally Posted by user
Many, many, have asked. 1000HP+ comes up often. Others will say 850HP, others 650HP. Whatever.
Now Hot Rod magazine has gone and got the question answered by some real world testing on an aged 5.3L (later found to be a 4.8L) escapee from a junk yard Gen III engine.
Engine was pulled down, cleaned up and put back together with stock cast pistons, cast crank, powdered metal rods, truck iron block. Only mod was opening the ring end gap a little for the turbo heat. Comp cam and lifters added. Heads cleaned up. LSXr intake. Twin turbos looking for the max power.
The result: 1203HP/897kw at 26.8 PSI of boost, 1030Ft/Lb or over 1400Nm of torque. And not just a single run, they ran it up on an engine dyno 60+ times.
It didnt break! Nice
Now Hot Rod magazine has gone and got the question answered by some real world testing on an aged 5.3L (later found to be a 4.8L) escapee from a junk yard Gen III engine.
Engine was pulled down, cleaned up and put back together with stock cast pistons, cast crank, powdered metal rods, truck iron block. Only mod was opening the ring end gap a little for the turbo heat. Comp cam and lifters added. Heads cleaned up. LSXr intake. Twin turbos looking for the max power.
The result: 1203HP/897kw at 26.8 PSI of boost, 1030Ft/Lb or over 1400Nm of torque. And not just a single run, they ran it up on an engine dyno 60+ times.
It didnt break! Nice
08-08-2011, 03:37 AM
#33
12 Second Club
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Haha I was just going to suggest this guy would be a perfect candidate to test that Hot Rod article out. Since so many guys believe it was bullshit or embelished somehow. I think if you really were into a budget build then an aluminum LS2 would be a waste, even if it does save weight. you can easily get like $3k from a good LS2 where as a little 4.8L can go for $500 all day long. Hell your in a, what did you say 1650lb dragster? You dont need torque! Just buy a few things for it to help it live like forged rods, forged pistons with some good rings, new bearings, and ARP bolts everywhere, etc, I mean you have a shop to do it in and stuff right so labor is no problem...then get some awesome heads and intake for a huge turbo and I think it should hold up just fine in a lightweight little dragster.
12-20-2013, 01:18 AM
#39
TECH Regular
Just remember you eventually will have to be running mid 6 seconds for top dragster to qualify in the top half of the field.
I ran top dragster and watched a lot of guys with big inch engines. I do like your idea though, just be ready to qualify with some low 6 sec cars.
I ran top dragster and watched a lot of guys with big inch engines. I do like your idea though, just be ready to qualify with some low 6 sec cars.
12-20-2013, 12:04 PM
#40
Launching!
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Wow, this trend is crazy.
If you can go 5.0's in the 1/8 with a stock 6.0 and a 88, why does everyone think doing it in a dragster @ 1650lbs is so hard?
Wallace racing cal for 1000hp@1650 is 6.88 @ 194.
We went 7's with a 850hp BBC like 8 years ago.
Dont get all fancy with the parts, use what you got.
6.0 with rods and pistons with live forever @ 1000hp(w/ the right tune)
Build the short block once, fill it to the water holes, run the stock heads, use a water tank(about 3 gals), no radiator on M1. We've made 1200 hp with the stock crank.
use a good intake, i like the Holley.
Get some 62mm turbos and go play.
I have always wantted to put a stock short block in a dragster and go set the stock short block record, but i know everyone will cry when i say my STOCK SHORT BLOCK went 7's!
What you are trying to do is a piece of cake. Even on a budget!
If you can go 5.0's in the 1/8 with a stock 6.0 and a 88, why does everyone think doing it in a dragster @ 1650lbs is so hard?
Wallace racing cal for 1000hp@1650 is 6.88 @ 194.
We went 7's with a 850hp BBC like 8 years ago.
Dont get all fancy with the parts, use what you got.
6.0 with rods and pistons with live forever @ 1000hp(w/ the right tune)
Build the short block once, fill it to the water holes, run the stock heads, use a water tank(about 3 gals), no radiator on M1. We've made 1200 hp with the stock crank.
use a good intake, i like the Holley.
Get some 62mm turbos and go play.
I have always wantted to put a stock short block in a dragster and go set the stock short block record, but i know everyone will cry when i say my STOCK SHORT BLOCK went 7's!
What you are trying to do is a piece of cake. Even on a budget!