I found this intake http://www.ebay.com/itm/STILLEN-HI-F...item27c2a7c0af and I believe it was the Stillen that Rob had tested and achieved the most HP on the dyno with. Is this it or does Stillen have another intake box model?

 

Just out of curiosity Rob, did you notice the car ever running lean with the MREV2 lower and a spacer? I am currently thinking of ordering the Mrev2 lower and 5/16s spacer for my 06 rev up but I've heard it can be dangerous to my motor at higher RPMs without an ecu tune. Unfortunately, I only have money for the 2 mods and not a $699 Osiris tuner. Is there anything I can do to insure my reliability or correct it or is it safe to run those two mods with the stock MAF and ECU?

 

I have the MREV not the upper plenum. I was thinking of adding the upper plenum but am fearful of losing the midrange bite I get now. In terms of damaging the engine with the mrev at high rpm Ive never heard that so I am curious to hear replies

 

these plenum mods are not going to run your engine lean enough to do damage - and very doubtful that you will even notice it running lean... when people mention being lean they determined that from a/f ratio during dyno...

If you hear your engine pinging/knocking (thin rapid metallic ticking is the best way I can describe it), you are lean - but that only happen in high rpm and once you now the sound you will instinctively let of the gas. No damage will result unless you lay heavy on the accelerator in those high rmp while it's pinging, which unless you are on a race track you will never do anyway.

In any event - MREV2 and or plenum spacer will not lean you out enough for that concern - and may not lean you out at all (the ecu can adapt to minor changes in A/F).

Other mods, such as test pipes or hfc can lean you to the point that you will notice performance loss - in which case A/F need to be adjusted via tune (such as Osiris). But again, with plenum mods this wont be an issue.

 

I know with all bolt ons I was running pretty lean. 15s at low rpm to high 13 at the top. I highly suggest a tune after bolt ons I gained 20 HP on top of my mods just with a good tune plus tons of mid range power. Car felt completely different and tons more fun!

 

^^^ when you say "bolt-ons" you must be referring to more than plenum mods - and more than just intake (even if it includes plenum)... if not, its likely you were lean to begin with (it happens).

As for 20 hp gains - that isnt uncommon with intake (including plenum) and full exhaust with a tune. However, gains may be seen with a tune even without full breather mods (not 20 hp, but gains over stock). Not enough to warrant getting a tune without breather mods - but I'm putting the big picture into perspective so no one misinterprets what is being said.

 

Visiting thread again to see the re-read the results. Looks like the link isn't working.

 

I tested it again, seems to work for me.

 

When testing stock Intakes with K&N and OEM Filters was the resonator (bottom of intake where filter sits) left on or did you have that removed. Not sure if that tiny thing would even make a difference but just curious.

 

it was left in to replicate OEM conditions.

 

Good to know. Never saw this before. Getting a tune in the summer time.

 

LOL just clear everything out and update the first post with this

 

I just read your thread... Wow nice write up man!

 

Nice write up! It was clear
I will definitely use this!

 

one more thing to add as of last weekend. I was at a local dyno day and there was a guy who was NA and recently purchased the kinetix manifold. I convinced him to let me try it on my newly boosted engine. I did dyno's back to back to back same strapping to compare my modified manifold with spacer to the kinetix that claims like 30hp.. it didn't make anymore power and actually the power curve came in later, basically shifted to the right. He also didn't make any power with it, he showed a gain of about 8hp but he still had a stock plenum (revup) no spacer. I told him a spacer and mrev2 manifold would likely net more power. So that was disappointing but not surprising. it's shiny but thats about it!