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93 how many pounds of boost can I run safely

robmustang201528

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I'm only on 10lbs of boost. I'm not going the E85 route. I have mmr oil pump and crank sprocket gears in the car
Vortech jt trim v7
8 rib pulley upgrade
Id1000 injectors
JLT intake for vortech kit
VMP boost a pump
Beefcake torque booster kit (turbosmart hypergate45 wastegate)
Turbosmart e-boost boost controller. How many pounds of boost can I make safely on 93? Also when are you guys shifting gears? 7000, 7500 with OPG and sprocket. Oh and yeah I have a MT-82. Thanks
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ahl395

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Generally 12psi is the most you can run safely on 93. Assuming you have good quality 93.

Timing can be set lower or higher to offset this as well. 12psi @ 18 degrees of timing is the most I could run on the best 93. Sub par 93 and I was pulling down to 15 degrees. You may be able to run 15psi if you only have 10 degrees of timing, but you really want a balance of the two.

If you want more performance out of 93, add methanol injection.

@engineermike Pretty sure he has a gen 2

With OPG/CG you can rev to 8k without issue. Assuming you have an intake manifold that makes it worth while.
 
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robmustang201528

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Yeah gen 2 opg and crank sprocket. Can I add a octane booster? Does that help at all? Some people say run a couple gallons of 110 to prevent knock
 

ahl395

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Yeah gen 2 opg and crank sprocket. Can I add a octane booster? Does that help at all? Some people say run a couple gallons of 110 to prevent knock
A whole can of octane booster will gain you about one degree of timing. Not worth it for long term use.

You could use 110 octane but I would tune for it specifically rather than just throw a couple gallons in on top of 93. Sometimes the 110 octane fuels are different type as in oxygenated/non-oxygenated Someone else may be able to provide more info there.

If your serious about making more power with 93 you will want meth. probably cheaper and easier than trying to mix 110 with your 93 anyway.
 

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hawk232

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PBD tuned me for up to 10 on 93 only and up to 15 on 93+meth. meth really is the way to go on a 93 car looking to get the most it can
 

hawk232

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not beyond what you need to support your non meth power level. meth injections supplies its own fuel via seperate tank/pump/injection (hence the name meth injection).
 

ahl395

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Do you have to get a fuel system for meth?
As hawk said, no. A meth injection system is basically it's own secondary fuel system. I recommend Alky Control.
 

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Jay-rod427

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I just made 12.5 lbs on our junk 91, but timing suffered big time. Only saw about 14-15 degrees.... But I literally can't spin the blower any slower. Was shocked a stage 2 8" crank pulley and 4.88" blower pulley made 12.5 lbs at 7,500...
 

Angry50

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A whole can of octane booster will gain you about one degree of timing. Not worth it for long term use.

You could use 110 octane but I would tune for it specifically rather than just throw a couple gallons in on top of 93. Sometimes the 110 octane fuels are different type as in oxygenated/non-oxygenated Someone else may be able to provide more info there.

If your serious about making more power with 93 you will want meth. probably cheaper and easier than trying to mix 110 with your 93 anyway.
i have seen VP ocatanium and torco with no tune change allow increase from 14 to 18 degrees. seems worth it to me. at least when track time.
 

ahl395

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I just made 12.5 lbs on our junk 91, but timing suffered big time. Only saw about 14-15 degrees.... But I literally can't spin the blower any slower. Was shocked a stage 2 8" crank pulley and 4.88" blower pulley made 12.5 lbs at 7,500...
What blower and what exhaust? I'm guessing D1X and cats? Definitely sounds high but a good example of how timing can be exchanged for boost.

i have seen VP ocatanium and torco with no tune change allow increase from 14 to 18 degrees. seems worth it to me. at least when track time.
Thats pretty significant. Maybe it was crap gas to start with? Lund told me VP/Torco would only allow for about 1 extra degree. Maybe that's just what they are safe with tuning though.
 

Angry50

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Thats pretty significant. Maybe it was crap gas to start with? Lund told me VP/Torco would only allow for about 1 extra degree. Maybe that's just what they are safe with tuning though.
im sure its been stated they have a max octane capability... sure if you have some nice low ethanol high octane 93 you will see less improvement vs some lower quality 93 we know there is a wide range. but the point is they work and each situation would have to be tested. tuners also recommend just as insurance against knock
 

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What blower and what exhaust? I'm guessing D1X and cats? Definitely sounds high but a good example of how timing can be exchanged for boost.



Thats pretty significant. Maybe it was crap gas to start with? Lund told me VP/Torco would only allow for about 1 extra degree. Maybe that's just what they are safe with tuning though.
LOL We pm'd in great detail about my car before I did it. P1X, 18 mani, mak deletes, and custom catback. Also why I was shocked to make 12 lbs. Lund must have some cam timing making boost a little higher than expected, but jr said it was right on what he expected.
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