What were your mods to get 312whp on an M62?

 

Stock bottom end, e85, 1000's, super mild ported head, zzp s2 cams, this same outlet port with a stock inlet, 2.6 pulley, and a little meth to keep the blower cool.
2.5 made 317. Gained a lot more tq than hp, around 15 iirc.

 

******* awesome. Any numbers on 93 octane?

 

Heck no lol.
My car has been on e85 since before the stock pulley even came off!

 

I'd run e85 if I didn't take so many road trips. Lol

 

So if I was going to do a build eventually would this make me lose performance beforehand?

Keeping in mine im on the stock pulley at this point and maybe a 3.1 later.

 

is there an increase in whine/noise from the blower with this?

 

No
Not by any noticeable amount.
Besides, that's not the point.

 

My port job looks tiny compared to this one. I didn't think the "Christmas tree" port was beneficial to us. That's a big gain for an M62

 

Intemeresting....

 

What you think and what the dyno and hpt reported airflow show are 2 different things.

 

Not sure I comprehend your statement

 

What I'm saying is the anyone can THINK anything. The dyno gain and airflow gain reported in hpt show the truth.

 

I know I was simply stating that your work is interesting " Intemeresting " to me. excuse the lingo

 

Ahh my post was to the guy above you. Sorry.

 

No problem at all, free bump to you good sir

 

Hey Al I got a couple questions for you.

Did you change your tune at all on your dyno comparison? (Especially with the increased airflow) and do you recommend to get retuned once this blower is swapped on?

I also noticed the outlet was ported significantly more then what I've seen other m62 port jobs... It's been said by members and eaton that too much port on the outlet may decrease performance. Thoughts?

Thanks

 

Quick answer before I head to work:

Just saw your graph. A friend of mine with you exact same mods, plus a blower I did identical to this one, made 298 a couple weeks ago.

 

/\And i saw that happen

 

Awesome. I'd like to be around those numbers lol.

I know dynos are just a unit of measurement... But I think my last dyno read a bit low. For what it's worth, a fully bolted and tuned LSJ on E85 and 2.8" put down 266whp and a stage 1 SRT neon put down 240whp on the same day, so taking the numbers with a grain of salt. Overall, I was happy in comparison and with my power curve... Pulls hard to redline.

I'm going to hit up the dyno in a couple weeks I used on my old pump gas setup (2.8, 60s, supporting mods) for a more accurate measurement. I was thinking about picking this up beforehand.

Did you change the tune at all with this? Can I just bolt on and go?

 

I did not have to change the tune because I had scaled the maf out accurately beyond where it was hitting previously. MOST tuners do this, but it's something that should be double checked with hpt.
Think of it similar to dropping a pulley without tuning. Usually it's "ok" but should be double checked.