Search found 3 matches

by slootmaker1
Wed Jan 17, 2018 5:36 pm
Forum: TECH: 4A-GE ENGINE
Topic: 20V BT BOGGY UNDER 4K
Replies: 4
Views: 1471

Re: 20V BT BOGGY UNDER 4K

The blacktop VVT operation is off at low rpm, on during mid rpm and off again at high rpm (your cam spec will determine what your engine prefers), unlike the silvertop that is off below 4400rpm(ish) and on above that rpm. Check for fault codes, make sure the throttle position sensor is set within s...
by slootmaker1
Wed Jan 17, 2018 5:20 pm
Forum: TECH: 4A-GE ENGINE
Topic: 20V BT BOGGY UNDER 4K
Replies: 4
Views: 1471

Re: 20V BT BOGGY UNDER 4K

totta crolla wrote:What is the spec. of the cams and ecu ?


Factory ECU. The Tomei Poncams are the max i could go with stock valvetrain. After speaking with the previous owner the car it did the same thing with the factory camshafts.
by slootmaker1
Mon Jan 15, 2018 8:13 pm
Forum: TECH: 4A-GE ENGINE
Topic: 20V BT BOGGY UNDER 4K
Replies: 4
Views: 1471

20V BT BOGGY UNDER 4K

I have an issue with my blacktop 20v boggy down under load on full throttle between 2500 and 3500 rpm, Once it hits 3500 the engine regains power slowly and at 4000rpm it pulls hard til redline. I'm running stacks and tomei poncams. I don't believe its a fuel issue since it pulls hard to redline. I'...

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