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MY build of a Apex 4cyl into a sidewinder.: Will probably run the gen2 gt2876 turbo. Chaincase mount notches Clutch alignment once bolted to the back factory mount (only need to cut off the outside tab on the rear mount closest to chaincase, use a shortened apex rear bolt as the...

apex into winder.

The apex motor does fit perfect in the sidewinder. the one back motormount tab closest to the chaincase needs to be cut then the motor will drop right into the back mount (use the apex rear bolt shortened, sidewinder one is too short), for the front the spacing is the same, you just need to...

I’ve started this swap on a sidewinder. It’s almost a bolt in. I attached it to the rear stock engine mount and had to make a new tab on the front. Also had to notch some of the chaincase and the side aluminum stays

the best way we have found is to get the coolant as full as possible from the cap, then use a funnel and add the rest to the metal coolant tank above the turbo through the bunghole. may need to run the sled for a bit first, that helps. let it cool for a bit before unscrewing the bolt. Also...

Yes thr tune is using a 4 port solinoid connected to a 2 port internal gate. I am simply using a 2 port external gate. They function the same.

This is my next step.

That large turbo tune already has a 4 port mac valve plugged into the stock wastegate exhaust connector. This allows a 2 port internal gate to work with the large turbo tune. An external gate works just the same as the internal gate. The only thing that would change would maybe be the wastegate...

While you are Probsbly correct about having the gauge vented and the liquid drained (I will drain and vent it next ) , I have a hard time believing that the liquid filled boost gauge is incorrect by a factor of 1.4 when it matches the wastegate spring pressure to within 1 psi and holds it...

If the Boost gauge happens to read the same as the TB map sensor, yet the gap map sensor is reading high… then where could the problem lie? What could be then causing it to read wrong ? The two grounds on the engine and chassis are connected.

Mechanical gauge is hooked to a vac line behind the tb. Same as the bov and the fuel pressure regulator. The map sensor is connected to the intake manifold ahead of the TB. I could move the mechanical gauge directly beside into the manifold but I’m not sure that will show anything. ? I can...

Yes. I can see it says 4 bar enabled in the flasher. Also if it were set to read a 2 or 3 bar, amd a 4 bar were installed then the ecu indicated boost would be lower than the gauge, not higher. Example : If my tune is set to a 2 bar where 5v is 14 psi then now my 4 bar is installed, then at...

I will also add that when driving the sled around without any crazy acelleration, the sled boost psi will show 3 psi already yet the mechanica gauge is still showing 0vac.

Hello all. Having a problem with my gap 4 bar map sensor reading approx 1.4 times higher in boost then my mechanical gauge. At 12ish gauge psi, the sled is showing 17 psi on the hourmeter. I have been talking with gap mfg and they believe the sensor is reading properly. (They have been answering...

My best is 10.97 at 100 mph letting off too early with the gap large turbo and stage 6 cams. What gearing are you running ?

No codes. How would the ecu know that it’s not reading correctly ?

I will get another log. Currently chasing another issue where the 4 bar map sensor is reading a higher boost than what the gauge is showing. (15 gauge shows 30 on the log which then appears to activate boost cut ). Tune is for a 4 bar map. Once I get the map sensor issue figured out I will...

The nipple on the turbo outlet was connected directly to the wastegate for this run, bypassing the stock ecu solinoid valve Do you have the stage 6 cams and large turbo also?

This was just wastegate pressure. Tomorow we will hook up the 2 port solinoid and try for 17psi. This should help allieveate the rpm drop after initial shift out.

Yes, I’ve seen that. This is why I am installing a external gate to fix overboosting as clearly the stock internal gate is no longer sufficient…..