Pettit Super Charger Owners
12-06-2008, 04:56 PM
#3802
12-06-2008, 05:05 PM
#3803
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Pettit, continuing to make other wishfull owners eat words they regret. Ok, once everything is ironed out with the injectors, bags of them that Cam showed me, who wants to put there car up for a nice dyno to state another fact?????? I have $10 on 335, 340WHP. TQ, thats to be seen, 
very curios myself.
very curios myself.
12-06-2008, 05:38 PM
#3806
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At 8200 rpm the blower is turning at 12,127 rpm. I would have to hit 8800 rpm in other to max the blower’s 13000 rpm but why should I since 8200 rpm is where peak hp rest. Noticed that my AF ratio fluctuate below 12 when the engine rpm is below 8000 rpm and just over 12 after 8000 rpm.
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But yes, you do not want to get too klose to blower limits.
12-06-2008, 05:51 PM
#3807
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Well, just a thought, I overspun my 1.4 blower buy alot, like 7k and more for a long time 10k with no ill effects on the blower but it was at low boost, from what I hear if you overspin at more boost you run the risk of raising output temps but since your well within the recomended max psi (30 psi I think) You might get away from that issue over spinning with meth keeping your air temps down. If you can get say 15 psi buy changing out your pullys, its still well with in the Blower perameters, any thoughts????
12-06-2008, 06:02 PM
#3808
Londons Yellow Peril
12-06-2008, 06:10 PM
#3809
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Today I finally got the time to take the car for a spin with the temporary fuel pressure gauge. I drove the car over 30 miles at various speeds, on the go acceleration and take off with just a ¼ of a tank in order to make it a worst-case scenario. My son monitored the gauge the whole time and kept giving me feedback while I monitored my AEM AF ratio gauge just to make sure I did not go lean. At the end the OEM fuel pump did its job. It maintained pressure no matter the conditions (except lateral acceleration).
12-06-2008, 06:22 PM
#3810
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After disconnecting the temporary fuel pressure gauge and filling the fuel tank at $1:85 a gallon for premium we then hit the road again for some EFIdude logs. The chart below shows fifth gear acceleration from 57 mph to 107 mph and with a final 11.3 psi boost.
Last edited by marsredr100; 12-06-2008 at 06:29 PM.
12-06-2008, 06:33 PM
#3811
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My highest boost reading was 11.5 psi on forth gear and I still need to re-adjust the blower belt. Ambient temp was 75 degrees and the AIT was 78 degrees thanks to my 50/50 VP Racing M-5 mixture.
The car feels 100% better.
I’m going to dyno it within the next few weeks and see if the butt dyno matches the real dyno.
The car feels 100% better.
I’m going to dyno it within the next few weeks and see if the butt dyno matches the real dyno.
12-06-2008, 07:55 PM
#3814
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All my high readings are in a quick burst in 1st or second gear, as I do not have higher flow injectors yet. (I pray for my rotor seals)
The seat of the pants dyno tells me it feels strong.
I have seen 10 PSI on my boost gauge, but I do not have the time to examine it closely when the engine is screaming and the car is trying to go sideways.
I don't have traction control on my model car, or really any traction at all in low gears.
The seat of the pants dyno tells me it feels strong.
I have seen 10 PSI on my boost gauge, but I do not have the time to examine it closely when the engine is screaming and the car is trying to go sideways.
I don't have traction control on my model car, or really any traction at all in low gears.
12-07-2008, 09:11 AM
#3817
whines all the way home
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Swoope,
Brice tells me you may sitll have a new RP supercat that you may be interested in selling...
Im going to check mine, Im having the same problems Juan was when his went bad.... PM the price and availability...
Brice tells me you may sitll have a new RP supercat that you may be interested in selling...
Im going to check mine, Im having the same problems Juan was when his went bad.... PM the price and availability...
12-07-2008, 09:37 AM
#3819
12-07-2008, 11:48 AM
#3822
Dongbag extrordinare
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Juan, I noticed you have made a few posts in regards to your belt. I purchased a Goodyear Gatorback 5PK350, which is slightly longer than the belt we get from Pettit. It worked just fine, while producing the aforementioned boost numbers.
12-07-2008, 12:06 PM
#3823
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Yes. This is not with the standard pulley setup. It is with the 5" blower drive pulley. I was using it several months ago.
Juan, I noticed you have made a few posts in regards to your belt. I purchased a Goodyear Gatorback 5PK350, which is slightly longer than the belt we get from Pettit. It worked just fine, while producing the aforementioned boost numbers.
Juan, I noticed you have made a few posts in regards to your belt. I purchased a Goodyear Gatorback 5PK350, which is slightly longer than the belt we get from Pettit. It worked just fine, while producing the aforementioned boost numbers.
It will be a while before I get to dyno, I still need the bigger injectors AND a set of Yukon ignition coils.
It really looks like Juan is the only one ready to dyno.
12-07-2008, 01:42 PM
#3824
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Yes. This is not with the standard pulley setup. It is with the 5" blower drive pulley. I was using it several months ago.
Juan, I noticed you have made a few posts in regards to your belt. I purchased a Goodyear Gatorback 5PK350, which is slightly longer than the belt we get from Pettit. It worked just fine, while producing the aforementioned boost numbers.
Juan, I noticed you have made a few posts in regards to your belt. I purchased a Goodyear Gatorback 5PK350, which is slightly longer than the belt we get from Pettit. It worked just fine, while producing the aforementioned boost numbers.
Last edited by marsredr100; 12-07-2008 at 03:24 PM.