Re: ONE DOWN , ONE TO GO !
[Re: 65signet]
#449510
08/24/10 02:40 PM
08/24/10 02:40 PM
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Joined: Apr 2005
Posts: 1,880 USA
Ron Silva
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Well the last of the things I wanted to do before making passes is done. I made a safety strap in case that Schumacher Motor Mount comes apart.
I already changed the oil once, but put Comp Cams 10W30 break in oil back in it for now. I am going to cruze it around and put some more miles on it and maybe even leave that oil in it to go to Irwindale and make a few shake down runs, plus the freeway driving. Then I will put Valvoline 20W50 Racing Synthetic in it for Sacramento.
The Sacramento Race is September 12th!
SRT DEMON ONE SEAT
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Re: ONE DOWN , ONE TO GO !
[Re: Moparnut426]
#449513
08/29/10 09:07 PM
08/29/10 09:07 PM
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Joined: Apr 2005
Posts: 1,880 USA
Ron Silva
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Well, I should be going to Irwindale Thursday for some shakedown passes. I do have some bad news though and it means a lot of work for me. It seems I am driving through the converter. "Thanks Ryan", for building me too much power for this 8" converter. Me and Sloan were talking and we think if I raise the RPM and shift light it won't seem that bad. So I will be trying that. Shift light was set at 6000 for break in, but pretty much does not go off when I am standing on it and going through the gears. So, I raised the shift light to 6400 and set the max RPM limit at 6900 in the MSD.
If it does not work ok like that, I will be removing the headers and trans and changing to the 10" TA Converter I have and then see if ATI might work with me on a larger converter. The TA converter is a "good one" I saved from the Demon. I bought a spare and it was in the car when I sold it, but I liked this one better. This 8" is as tight as they can make it, they told me when I bought it.
I am VERY happy with the motor so far. I finally transfered the ignition to the Crank Trigger and she drives great, idles so nice at stop lights and no leaks of trans/ engine or cooling system. I have zero issues driving it to Irwindale, laying down some passes and then driving home.
SRT DEMON ONE SEAT
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Re: ONE DOWN , ONE TO GO !
[Re: Ron Silva]
#449515
08/30/10 12:11 AM
08/30/10 12:11 AM
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Joined: Dec 2004
Posts: 1,717 Rancho Cucamonga, Calif.
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Well, it will be interesting to say the least as to the outcome of how the converter is going to handle this power and RPM range. Im thinking that you will end up with a 10" deal. Im thinking that the RPM range that your dealing with (sub 7000), in conjunction with the big torque of that engine, that a 8" converter just might not have the holding power. If your engine was a 8000 RPM shifter, I think it might be different. I plan on going to Irwindale as well on Thursday. Oh by the way, when Ron drove off from my house, he blipped the throttle just a little and the engine blew the tires off and flashed to 6k+ in a matter of a tenth of a second. I would have thought he grabbed a unit when he did that. CRAZY!!
10.53 @ 125mph. 1.37 60 foot. Caltracs and Monoleafs, AFCO shocks.
Heads by INDIO MOTOR MACHINE; IMM. CP Pistons, PC Carbs.
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Re: ONE DOWN , ONE TO GO !
[Re: Ron Silva]
#449519
08/30/10 12:28 PM
08/30/10 12:28 PM
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Joined: Apr 2005
Posts: 1,880 USA
Ron Silva
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I just talked to ATI and he thinks I would need 1000 HP to blow through the converter I have and we all know I don't have that much HP. He says I am on the right track raising the operating rpm and he would like to see a little more gear in the car, but those 4.10's are never going to change. So, we will see how it does on Thursday.
SRT DEMON ONE SEAT
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Re: ONE DOWN , ONE TO GO !
[Re: MIKES_DUSTER]
#449521
08/30/10 12:53 PM
08/30/10 12:53 PM
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Joined: Apr 2005
Posts: 1,880 USA
Ron Silva
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I love those tires. I will never run aything else. You just have to get the pressure right. I heard they need more pressure than the bias ply's and so I started out at 20 PSI. Car launched real well on the hit and then just spun and squealed real loud! But I was comparing to what the stockers run for Pressure, but that is a smaller tire. Bigger tires do not usually run as much pressure. So I went down to 17, then it dead hooked. I usually run 16-17 psi. Medium to light burnout. If these were bias ply's I would be at 11 psi. so they do require a lot more pressure. They ride better on the street and better stability at the track. It's all good.
Keep in mind this was all with the crate motor. No telling what it will do now. I have changed the car to be all pinned down right now to prevent a big wheelstand, so it may not hook. I plan on getting more agressive if needed, but for now I want to keep the front end LOW! Don't want to smash those headers any time soon.
SRT DEMON ONE SEAT
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Re: ONE DOWN , ONE TO GO !
[Re: MIKES_DUSTER]
#449524
08/30/10 03:19 PM
08/30/10 03:19 PM
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Joined: Apr 2005
Posts: 1,880 USA
Ron Silva
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Yes I like the Hoosier DOT Radials over the Quick Time Pro's and I like the QTP's over the MT ET Streets. I have never tried the MT ET Street radials but I do not consider that tire a good choice for a track that does not have excellent prep.
I consider the Hoosier DOT Radials to be basically a Drag Radial slick with a couple Grooves in it. Just like the QTP's are.
Pinned down: I put the rear segment clamps back on the Tri City Launchers and I cranked up the front Shock rebound damping setting. If that does not do it I will install bigger upper control arm bumpers to limit front end travel/rise.
SRT DEMON ONE SEAT
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Re: ONE DOWN , ONE TO GO !
[Re: MIKES_DUSTER]
#449527
08/31/10 06:00 PM
08/31/10 06:00 PM
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Joined: Jan 2003
Posts: 17,928 Akron, Ohio
ProSport
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I Live Here
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Ron, run the car on a good 1/4 mile track to get good data before worrying about the converter. The 1st time I went out with my car I went to an 1/8 mile track with crappy tires. My shift light never went off and I came right home and made a thread on Moparts about my converter. Everyone suggested a good 1/4 mile test, I bought new tires and went to a 1/4 mile track and all was fine, only about 5% slip. It's also hard to judge anything on the street, I know my car is an absolute handfull on the street, cannot even try to use 1st gear.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: ONE DOWN , ONE TO GO !
[Re: MIKES_DUSTER]
#449528
08/31/10 06:38 PM
08/31/10 06:38 PM
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Joined: Apr 2005
Posts: 1,880 USA
Ron Silva
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With the crate motor the new radial tires would spin some but the car would move out real well. It would actually strain my neck. If I was in a street race from a dead stop with the crate motor I would just stab the throttle.
With the new motor the car is like it is on nitrous. Completely out of control. I hit it once in my neighborhood from about a 10mph roll and the car was spinning but moving so fast in such a short time with the shift light on and going sideways and I hit second to try and calm it down and it was going to go around so I got out of it. All the stuff came off the back seat and so on. But it was moving and tracking real fast. It's amazing how fast things can happen with this power. I went back a couple times and there were no marks on the street. None. So the car was moving and tracking.
Bob, that is good advice. Thanks. I am hoping my car will be about as fast as yours. I was ready to change the converter but calmed down after I talked to ATI.
SRT DEMON ONE SEAT
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