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Post by holden on Aug 18, 2008 18:34:43 GMT 11
Hi all, I have a 91 MU 4JB1-T with the current mods: Boost Gauge, Manual Boost Controller 15PSI, Oil Catch Can, K&N Pod, Removed EGRs, K&N engine breather, T M intercooler, Electric fan. And still think I dont have the power I want. I dont want to spend much money as im saveing for a set of mud grips. Im going to do a fuel advance but not to sure where the screw is on the pump. But after that it only a little more power. I just want the power to be there when I need it. What can I do  kane |
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Post by geeves on Aug 18, 2008 18:44:55 GMT 11
easy power comes from a snorkle and 2.5 inch exhaust. I wouldnt increase fuel without the exhaust as you risk frying the turbo and or head. To give an idea what I mean head cracking on the famous 2lt Toyota almost stops when you fit a bigger exhaust.
Whats a kn engine breather?
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Post by holden on Aug 18, 2008 19:25:46 GMT 11
Whats a k&n engine breather? It stops oil fumes runing though the engine so no more oil in the air intake. |
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Post by mudgrip4 on Aug 18, 2008 20:02:48 GMT 11
Yes - do the 2.5" bigbore ex turbo - good gain in low down grunt/torque. And if you want cheaper performance increases first - go to a good diesel mechanic and ask him to advance the pump timing, and increase the fuel delivery with screw on the pump right up to point of heavy black smoke, then backing it off a tad. This only takes 45 mins or so and will give you more than what you've gained so far.
Without improving airflow (bigbore and snorkel) and fuel flow (pump timing and fuel increase), your K&N filter and boost guage will not do much.
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Post by geeves on Aug 18, 2008 21:41:27 GMT 11
I still recon its not a good idea to play with the fuel when you still have a std exhaust. More fuel means more heat More heat means more wear. Big bore gets rid of that heat. Opening up the gas flow also gives quite meaningful gains on its own.
If the kn breather is replacing the oil filler cap It will have to go when the snorkle is fitted. No point getting clean dry air to the intake when water can get into the sump via this breather. Ive seen a couple of engines kumured by water getting into the sump.
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drift
Isuzu Baby
Posts: 31
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Post by drift on Aug 19, 2008 1:49:40 GMT 11
Remember putting mud tyres on will affect on road performance in a negative way.
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Post by holden on Aug 19, 2008 7:06:30 GMT 11
Remember putting mud tyres on will affect on road performance in a negative way. I will never use mud grips for on road only to get where I need to go offroading. then I will put my ATs back on at home. |
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drift
Isuzu Baby
Posts: 31
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Post by drift on Aug 19, 2008 20:39:43 GMT 11
Aha good move  |
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Post by superturbocompound on Aug 21, 2008 13:01:30 GMT 11
easy power comes from a snorkle and 2.5 inch exhaust. I wouldnt increase fuel without the exhaust as you risk frying the turbo and or head. To give an idea what I mean head cracking on the famous 2lt Toyota almost stops when you fit a bigger exhaust. Whats a kn engine breather? wow! interesting,one of the most common excuse on why people here don't use much of this engine,especiallly the 1kz-te,every workshop has a few of these heads lying around... |
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