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  #11  
Old 08-30-2013, 08:27 PM
smokinss smokinss is offline
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So I am guessing that the ported maf ends I just put on are no good. Didn't pay anything for them. My buddy went carb setup.
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2000 SS Th350, FTI 4200 stall , cam, full bolt-ons, 150 wetshot, Moser 9inch/locker/4.11s, Slowhawk tuned. 493rwhp 570rwtq. 10.97 @ 127.7 1.58 60' and M6
10.84 @ 126.3 1.55 60' Th350 SOLD BUT NOT FORGOTTEN

New Toy - 06 Torrid Red Gto M6. 231/242 cam, Kooks, magnaflow, GForce, Monster stg2, lingenfelter cai, 411rwhp 385rwtq. 12.40@111
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  #12  
Old 08-30-2013, 08:47 PM
Slowhawk Slowhawk is offline
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Quote:
Originally Posted by smokinss View Post
So I am guessing that the ported maf ends I just put on are no good. Didn't pay anything for them. My buddy went carb setup.
I'd make you put the stockers back on. De screened stock at least gives you some separation.

You can see the issue by tuning it, then turn the meter 90' and log again. The load tables change.

Your car with the tranny is at the point of being OLSD tuned anyways. It would help a lot with the stall, cam ect. Throttle response will be better and more consistant on nitrous pulls.
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  #13  
Old 08-30-2013, 08:54 PM
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Z28 Z28 is offline
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What's a good clutch for a h/c ls1? Also what heads do you recommend for an ls1?
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  #14  
Old 08-30-2013, 09:45 PM
smokinss smokinss is offline
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Quote:
Originally Posted by Slowhawk View Post
I'd make you put the stockers back on. De screened stock at least gives you some separation.

You can see the issue by tuning it, then turn the meter 90' and log again. The load tables change.

Your car with the tranny is at the point of being OLSD tuned anyways. It would help a lot with the stall, cam ect. Throttle response will be better and more consistant on nitrous pulls.
Good to know. I will inquire about it tomorrow. I am bringing my stock maf with me too
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2000 SS Th350, FTI 4200 stall , cam, full bolt-ons, 150 wetshot, Moser 9inch/locker/4.11s, Slowhawk tuned. 493rwhp 570rwtq. 10.97 @ 127.7 1.58 60' and M6
10.84 @ 126.3 1.55 60' Th350 SOLD BUT NOT FORGOTTEN

New Toy - 06 Torrid Red Gto M6. 231/242 cam, Kooks, magnaflow, GForce, Monster stg2, lingenfelter cai, 411rwhp 385rwtq. 12.40@111
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  #15  
Old 08-31-2013, 01:56 PM
Slowhawk Slowhawk is offline
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Originally Posted by Z28 View Post
What's a good clutch for a h/c ls1? Also what heads do you recommend for an ls1?
We like the Mcleod RXT. Stock peddle feel, easily drivable and handles 1200hp. Means you won't need another clutch again.

Heads have a lot of variable's depending on what it is for.
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  #16  
Old 08-31-2013, 03:01 PM
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Stickied! Thanks Don!
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  #17  
Old 09-03-2013, 02:37 PM
Slowhawk Slowhawk is offline
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Cam-
This is a big problem for most. Picking a Cam off an idle video or the highest internet numbers is definitely the wrong way to choose.

A lot of factors when picking a Cam.
1- Auto or manual tranny
2- gears
3- heads/intake/exhaust setup
4- what is the car being used for
5- how much drivability are you willing to give up.- This is opinion since everybody has a different standard of how they drive.

Most street cams want a strong midrange torque curve with a shift point of 6500rpm or so. These cams can be an easy daily driving type of cam.

People with 4.11+ gears M6 or 4000 stall A4 might prefer a bigger cam which put's the power curve to 4500-7000rpm. This will pull up top most but most of the time are harder to drive daily due to crap idle.

A few basics.
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  #18  
Old 09-03-2013, 03:04 PM
Motaboata Motaboata is offline
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Don, best way to choose tire sizes and also best tire for a street strip car?
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  #19  
Old 09-03-2013, 04:52 PM
Slowhawk Slowhawk is offline
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That goes by gear ratio,tranny and suspension.
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  #20  
Old 09-04-2013, 02:19 PM
Slowhawk Slowhawk is offline
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Tuning, when and how?

Tuning can help pretty much every stock car. The factory dumps 1 tune for 200k+ cars. The computer does it's best to self learn and does a decent job.
Tuning will bring out better throttle response, drivability, faster 1/4 times with TM deleted and better fuel/timing tables.

Shops- There are a ton popping up nowadays. You have a wide selection to choose from. Do your research on each and go by how long they have been tuning just GM vehicle's. You really don't want to be there test vehicle without knowing it. If they prefer hand helds- walk away.

Tune types
closed loop-,maf,02's - Most common tune, good for stock, bolt-on's and small/medium sized cams. This usually consists of tuning the MAF table in for fuelling by going off l-trims , setting your own timing table and various little changes. Tune time- 2-3 hours

Closed loop, SD base, put back 02/maf - This is for bigger cams 228+ duration. Setting a SD tune helps with transistions with the cam and makes a more drivable bigger cam car. Tune is the same above with the added VE table tuning. Tune time- 3-4hr's

Open loop speed density w or without 2/3 bar- This is a precise tune mostly for huge Cam(low vacuum) or Forced induction cars. With some of these cars the MAF will fluctuate too much causing fuelling problems and the 02's will give false readings due to overlap(raw fuel). The tune has to be precise in the VE table and timing has to be spot on with forced induction cars. When it is all set no adjustments are needed. Even for weather ect. Finding a shop that knows how to tune this way is difficult. You need a load dyno or risk tickets on the street. tune time 5-6 hours due to cold start situations.

Remember- always try to have a well tuned up car before bringing to a tuner- good plugs,wires,fuel filter. A lot of times the tuners are blamed for the owners lack of responsibility and maintanence.
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