Still pushing water.
Originally Posted by ATVracr
You have a very efficent N20 kit too.
225 shot makes 230 or so to the wheels
450 DAMN ! Maybe it will bump the front wheels
225 shot makes 230 or so to the wheels
450 DAMN ! Maybe it will bump the front wheels
The exhaust smell in the radiator is pretty obvious, along with the bits of the coating from the MLS gaskets in the water, and the bits of the coating hanging out from between the block and head. Yes thats good old exhaust on the head deck in that pic, thats when I knew when to change the gaskets - when I could see the black carbon on the outside of the block
I changed a cam, different heads (darts to AFRs) and a bunch of other stuff and finally calmed it down but I know if I add any more then 18psi its going to do it. I found just backing off the timing 7-8 seconds into a run helps a whole bunch and doesnt reallly hurt anything ET-wise, I never used to push a drop 1/8 mile but 1/4 mile would do a quart a pass. Taking 2 dgrees out with a timer definately helped.
I'm just sitting back waiting for the baller's to try the LSx 6 bolt and see how it holds up.
I changed a cam, different heads (darts to AFRs) and a bunch of other stuff and finally calmed it down but I know if I add any more then 18psi its going to do it. I found just backing off the timing 7-8 seconds into a run helps a whole bunch and doesnt reallly hurt anything ET-wise, I never used to push a drop 1/8 mile but 1/4 mile would do a quart a pass. Taking 2 dgrees out with a timer definately helped.
I'm just sitting back waiting for the baller's to try the LSx 6 bolt and see how it holds up.
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8 SEC SLOPPY SHOT!!!
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From: lombard,IL
Originally Posted by GrannySShifting
Id like to think he has a very efficient N20 cam instead
Originally Posted by kp
The exhaust smell in the radiator is pretty obvious, along with the bits of the coating from the MLS gaskets in the water, and the bits of the coating hanging out from between the block and head. Yes thats good old exhaust on the head deck in that pic, thats when I knew when to change the gaskets - when I could see the black carbon on the outside of the block
I changed a cam, different heads (darts to AFRs) and a bunch of other stuff and finally calmed it down but I know if I add any more then 18psi its going to do it. I found just backing off the timing 7-8 seconds into a run helps a whole bunch and doesnt reallly hurt anything ET-wise, I never used to push a drop 1/8 mile but 1/4 mile would do a quart a pass. Taking 2 dgrees out with a timer definately helped.
I'm just sitting back waiting for the baller's to try the LSx 6 bolt and see how it holds up.
I changed a cam, different heads (darts to AFRs) and a bunch of other stuff and finally calmed it down but I know if I add any more then 18psi its going to do it. I found just backing off the timing 7-8 seconds into a run helps a whole bunch and doesnt reallly hurt anything ET-wise, I never used to push a drop 1/8 mile but 1/4 mile would do a quart a pass. Taking 2 dgrees out with a timer definately helped.
I'm just sitting back waiting for the baller's to try the LSx 6 bolt and see how it holds up.
What do you think a LSX block 454 with an F1R could run in a 3300lb racecar?
5.00:1; 5:40:1 are the permited gear ratio's
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From: Cecil County Raceway!!!
Originally Posted by ATVracr
What do you think a LSX block 454 with an F1R could run in a 3300lb racecar?
5.00:1; 5:40:1 are the permited gear ratio's
5.00:1; 5:40:1 are the permited gear ratio's
Either way, its rated for up to 1300 hp, so I'd guess mid 8s would be a realistic possibility if the combo was properly matched
Originally Posted by Fireball
by looking at the procharger specs for the F1R with a 5.40:1 internal stepup, its rated for a 375-550 n/A horsepower setup, I think the compressor might run out of steam for a raceprepped 454.
Either way, its rated for up to 1300 hp, so I'd guess mid 8s would be a realistic possibility if the combo was properly matched
Either way, its rated for up to 1300 hp, so I'd guess mid 8s would be a realistic possibility if the combo was properly matched
Thats not fast enough.
We can do that or better with N20
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From: Cecil County Raceway!!!
Originally Posted by ATVracr
Thats not fast enough.
We can do that or better with N20
We can do that or better with N20
The "same" class thats in the NSCA allows the F2/F2R SC. Take a look at limited street on www.nsca-racing.net. That class runs slightly faster ETs overall (bottom 8s maybe a high 7 on a very very good day). The #1 car went 8.0 in qualifying at cecil 2 weeks ago. I think the car that went 7.9x earlier this year was a F2(R?) Procharged mustang...
Been awhile since we worked with blown race cars, but we went 8.60 at 3692# with a F1R and a 387ci LS engine at Thunder race in 03 or 04. One tenth per hundred pounds should be reasonable gain, so 8.20 should happen.
Kurt
Kurt
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Verdad Gallardo The guys in Extreme street (NMCA) have gone 7.9 with a F1R.
DRIVER NAME RECORD DATE SET
Elapsed Time Record Chuck Bartholme 7.981 April 15, 2007
Bradenton, FL
Top Speed Record Chuck Bartholme 174.31
I think we may be able to go low 8's with one set for maw effort.
DRIVER NAME RECORD DATE SET
Elapsed Time Record Chuck Bartholme 7.981 April 15, 2007
Bradenton, FL
Top Speed Record Chuck Bartholme 174.31
I think we may be able to go low 8's with one set for maw effort.
Joined: Nov 2001
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From: Cecil County Raceway!!!
Originally Posted by ATVracr
The guys in Extreme street (NMCA) have gone 7.9 with a F1R.
DRIVER NAME RECORD DATE SET
Elapsed Time Record Chuck Bartholme 7.981 April 15, 2007
Bradenton, FL
Top Speed Record Chuck Bartholme 174.31
I think we may be able to go low 8's with one set for maw effort.
DRIVER NAME RECORD DATE SET
Elapsed Time Record Chuck Bartholme 7.981 April 15, 2007
Bradenton, FL
Top Speed Record Chuck Bartholme 174.31
I think we may be able to go low 8's with one set for maw effort.
Small Block Supercharged 400cid 3400lbs
If actual cubic inch is more than base cubic inch listing in section 13, there will be a weight penalty of 8.0 pounds per cubic inch assessed to base weights. 54 lbs x 8 lbs/ci = 432 lbs
Entries using stock-type suspension may deduct 50 pounds from base weights.
454 + F1R = 3782 lbs
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From: Cecil County Raceway!!!
Originally Posted by 427
Been awhile since we worked with blown race cars, but we went 8.60 at 3692# with a F1R and a 387ci LS engine at Thunder race in 03 or 04. One tenth per hundred pounds should be reasonable gain, so 8.20 should happen.
Kurt
Kurt
Originally Posted by ATVracr
The guys in Extreme street (NMCA) have gone 7.9 with a F1R.
DRIVER NAME RECORD DATE SET
Elapsed Time Record Chuck Bartholme 7.981 April 15, 2007
Bradenton, FL
Top Speed Record Chuck Bartholme 174.31
I think we may be able to go low 8's with one set for maw effort.
DRIVER NAME RECORD DATE SET
Elapsed Time Record Chuck Bartholme 7.981 April 15, 2007
Bradenton, FL
Top Speed Record Chuck Bartholme 174.31
I think we may be able to go low 8's with one set for maw effort.
A procharged car just went 6's in Canada as well, first 6 second centrifugal supercharged car I believe.
If I could keep the heads down I could run 8.80s with an F1A/347 and a hydraulic cam with an LS6 intake and stock TB on a good track. I have the 60 foots to go 8s I just cant keep the power up on the back half of the track because of the gaskets. Some guys dont mind pushing a quart or two of water a pass, I dont like it.
I would be happy with a 400cid LSX and an F1R with a cog or direct drive and a solid roller, thats an easy low 8 second combo if you can hook it up IMO.
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From: Cecil County Raceway!!!
Originally Posted by ATVracr
Sorry it would be a 427.
I'm with Kurt, 8.2's is doable.
We might just find out
I'm with Kurt, 8.2's is doable.
We might just find out
Based on the "small block" weight system, you are still looking at a raceweight of 3566 lbs at that motor size (3400 + (27*8) - 50). they went 8.60 at 100lb heavier What is confusing is that "big block" has 3400 lbs for 477 cid and "small block" has 3400 lbs for 400 cid...that really doesn't make any sense to me...especially for weight adders...
note that most of the procharged combos come in at 360ish cid sizes. I would've considered LSX for my build...but its really difficult to get motor sizes down when the bores are so darn big
Big bores flow like a ****.
It would be hard for us to make it lighter than 3400 eith the heavy *** charger on it and my big *** driving.
Seems like the Big block guys have an advantage.
W2W also did it 4 years ago. Parts have gotten a little better since then.
It would be hard for us to make it lighter than 3400 eith the heavy *** charger on it and my big *** driving.
Seems like the Big block guys have an advantage.
W2W also did it 4 years ago. Parts have gotten a little better since then.
Originally Posted by Fireball
Based on the "small block" weight system, you are still looking at a raceweight of 3566 lbs at that motor size (3400 + (27*8) - 50). they went 8.60 at 100lb heavier What is confusing is that "big block" has 3400 lbs for 477 cid and "small block" has 3400 lbs for 400 cid...that really doesn't make any sense to me...especially for weight adders...
note that most of the procharged combos come in at 360ish cid sizes. I would've considered LSX for my build...but its really difficult to get motor sizes down when the bores are so darn big
note that most of the procharged combos come in at 360ish cid sizes. I would've considered LSX for my build...but its really difficult to get motor sizes down when the bores are so darn big
Originally Posted by Fireball
I think its 4.125 as shipped
4.125 is the Max most engine builders are reccomending for power adder cars.
https://ls1tech.com/forums/generation-iv-internal-engine/740241-lsx-block-ready-use-out-box.html
