Going to try a little camshaft experiment..
Originally Posted by engineermike
My point exactly. There are too many variables when choosing a cam to make the sweeping generalization that 113+ LSA is good for FI. It so happens that most use 114, but that doesn't mean its right or best. It just means that people have been spreading around this bad advice for way too long.
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From: Knoxville, TN
Originally Posted by speedracer5532
KP, I think you should advance that cam some.
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From: Knoxville, TN
Originally Posted by Inspector12
So you think it is bad to run higher LSA's? Cause now you could be doing the same thing spreading bad advice that is. I mean to say that there are a ton of cars making great power and running good track times to back up what people have been saying about running a higher LSA etc... Just food for thought. But I like to debate things LOL! see ya back on the post good runs KP.
I will be doing this exact same thing in a couple weeks except on a turbo car. I am going get dyno and track times. I am going to start with a stock cam, then move to a comp grind. Those specs are going to be 230/228 .591/.588 on a 114. Then for ***** and grins I am going to try the Trex cam. Just cause I have one laying around and I loved the way that it sounded in my all motor car. I will have dyno #'s and track times for everything.....
Originally Posted by kp
Here is what it sounds like at idle, its idling at 900rpm @ 12.5:1 a/f.
http://video.ls1tech.com/video/ee73b...3500d9da14.htm
http://video.ls1tech.com/video/ee73b...3500d9da14.htm
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From: Knoxville, TN
Originally Posted by sevanseriesta
I will be doing this exact same thing in a couple weeks except on a turbo car. I am going get dyno and track times. I am going to start with a stock cam, then move to a comp grind. Those specs are going to be 230/228 .591/.588 on a 114. Then for ***** and grins I am going to try the Trex cam. Just cause I have one laying around and I loved the way that it sounded in my all motor car. I will have dyno #'s and track times for everything.....
You need compression 
Believe me ,we have tested it.Bring that up to atleast 10-1 and you'll be 8's.I would actually run allittle bigger cam with a lower DCR and run comp. 10.5 to 11-1
Wish I could release our race car specs but it was unbelievable gains raising the compression.Enough for us to have the fastest F1 car in the country
Believe me ,we have tested it.Bring that up to atleast 10-1 and you'll be 8's.I would actually run allittle bigger cam with a lower DCR and run comp. 10.5 to 11-1 Wish I could release our race car specs but it was unbelievable gains raising the compression.Enough for us to have the fastest F1 car in the country
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From: Knoxville, TN
Originally Posted by Slowhawk
You need compression Believe me ,we have tested it.Bring that up to atleast 10-1 and you'll be 8's.I would actually run allittle bigger cam with a lower DCR and run comp. 10.5 to 11-1
Wish I could release our race car specs but it was unbelievable gains raising the compression.Enough for us to have the fastest F1 car in the country
Believe me ,we have tested it.Bring that up to atleast 10-1 and you'll be 8's.I would actually run allittle bigger cam with a lower DCR and run comp. 10.5 to 11-1 Wish I could release our race car specs but it was unbelievable gains raising the compression.Enough for us to have the fastest F1 car in the country
I was only running the D1SC at 6K under max impeller this weekend (7.25/3.7), 146mph @ 3420lbs with that pulley combo on a 2400' DA day with an A2A is pretty good. I think I have the fastest procharged 347 LSx car in the country, that and a quarter might get me a cup of coffee
It will go 8s with the F1A on it on a good day as it sits right now I think, honestly I'm more concerned with keeping the head gaskets on it, not having to run C16 and not having to deal with an A2W intercooler way more then going 8s in this thing. This is just a fun car I threw together in my garage, you race car guys are serious about it - I'm not
Originally Posted by kp
My compression was at 9.7:1, I recently dropped it, I know how it all works.
I was only running the D1SC at 6K under max impeller this weekend (7.25/3.7), 146mph @ 3420lbs with that pulley combo on a 2400' DA day with an A2A is pretty good. I think I have the fastest procharged 347 LSx car in the country, that and a quarter might get me a cup of coffee
It will go 8s with the F1A on it on a good day as it sits right now I think, honestly I'm more concerned with keeping the head gaskets on it, not having to run C16 and not having to deal with an A2W intercooler way more then going 8s in this thing. This is just a fun car I threw together in my garage, you race car guys are serious about it - I'm not
I was only running the D1SC at 6K under max impeller this weekend (7.25/3.7), 146mph @ 3420lbs with that pulley combo on a 2400' DA day with an A2A is pretty good. I think I have the fastest procharged 347 LSx car in the country, that and a quarter might get me a cup of coffee
It will go 8s with the F1A on it on a good day as it sits right now I think, honestly I'm more concerned with keeping the head gaskets on it, not having to run C16 and not having to deal with an A2W intercooler way more then going 8s in this thing. This is just a fun car I threw together in my garage, you race car guys are serious about it - I'm not
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From: Knoxville, TN
Originally Posted by Slowhawk
Sorry,since I always see you post about being at the track and wanting to go 8's that you were a serious racer
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From: In the garage
Originally Posted by engineermike
That's just the kind of false generalizations that get spread around the internet, that we all need to question. Do you realize the old Buick Turbo GN's came stock on a 106 LSA?
Mike
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From: Norn Iron
How has the cam impacted on fuelling requirements ?
I know you say you are allowing closed loop to take control...but do you know how much fuel it has added or removed over the previous cams tune ?
I know you say you are allowing closed loop to take control...but do you know how much fuel it has added or removed over the previous cams tune ?
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From: Knoxville, TN
Originally Posted by WHPLASH
KP, would you say that cam would be a good upgrade for my setup? Or a little too big?
What I was trying to accomplish was take away some bottom end so with the F1A I could calm the wheelstands down and get me a few more RPM on the top end, both seem to be working as planned.
Stevie, it is definately using more fuel (at high rpm), on a similar DA day it would be about -2% on the O2 correction and it was +1% or so last weekend. I had to take a lot of transient (accelerator pump) and idle fuel out because of the overlap but in its going don the track range (6200-7200) it is definately using more fuel. The numbers arent steller but its getting warm around here so 9.30s@146 and 5.90@117 1/8 mile is pretty good at 2000+ DA for this car. Got a long wait until fall and some good weather
Originally Posted by Jake@EPP
Gotta hate not running an open down pipe, what cam is in there? Sounds damn good 
Thank you sir for the compliment. The cam is a "STG 3" blower grind from MMS, the specs are really close to Kev's/your cam. I ran it with my D1-SC set up and decided to run it with the turbo.
233/244 .578/.602 115 are the specs.
J
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From: Hell AFB
Originally Posted by frcefed98
Thank you sir for the compliment. The cam is a "STG 3" blower grind from MMS, the specs are really close to Kev's/your cam. I ran it with my D1-SC set up and decided to run it with the turbo.
233/244 .578/.602 115 are the specs.
J
233/244 .578/.602 115 are the specs.
J
The "after" part of that video was with a cat in DP section......that cat was recently removed
Now its pretty damn loud without it, but the cat back is coming off and it will be dumped right past the seat. The car is becoming more track and less street, no where to really enjoy it but at the track anyway
Now its pretty damn loud without it, but the cat back is coming off and it will be dumped right past the seat. The car is becoming more track and less street, no where to really enjoy it but at the track anyway Thread Starter
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From: Knoxville, TN
Figured I'd throw this in here just so people can hear how much louder the F1A is then the D1SC. I put the F1A on today with a 4.25 pulley to hopefully get it down around 15-17psi (had a 4" on it last time @ 20psi)so I can finally sell off the D1SC - kind of silly having two blower laying around..
But here is the car idling with the F1A, compare it to the other idling vid up top - pretty hard to hide it has a blower on it with the F1
http://video.ls1tech.com/video/ceae3...3801157387.htm
But here is the car idling with the F1A, compare it to the other idling vid up top - pretty hard to hide it has a blower on it with the F1
http://video.ls1tech.com/video/ceae3...3801157387.htm