spartan tech question

[08twinturbo]

Hey, I have been running the 275v3 and 275 v4. The v4 runs perfect but uses 10 psi more boost at any speed than the v3. The v4 also gets noticeably better gas mileage. Is the excessive boost of the v4 over the v3 harder on the engine during normal driving. I also tow a very light utility trailer from time to time and that requires more boost on the v4. Around 30 psi at times. Is this OK?

[SpartanTechII]

The boost will do no harm. The stock calibrations at times run more boost then the v4, and if its getting better gas mileage I would use it. Hope this answers your question!

[DieselFarmer]

Originally Posted by SpartanTechII

The boost will do no harm. The stock calibrations at times run more boost then the v4, and if its getting better gas mileage I would use it. Hope this answers your question!

who would take the time to pose as somebody from spartan? just to answer this one question...

[SpartanDieselTech]

Poster isn't a poser, they are an employee.

[DieselFarmer]

My bad I thought it was kind of suspicious because the accound had just been created and there was only one post.

[08twinturbo]

Yes, I do see that on the lower tunes the boost is higher while driving normal. The 275 v3 has quicker response on bottom end than the v4, but the v4 has great power on mid to top end. V3 seems to pull light loads a bit better than the v4. Why is that? Thanks.