Baronet1

Would a 172 pulley , headers, and custom dyno tune put me around these figures?

MB_Forever

I think with those mods you'll probably be close. To date, the most effective mod list for the E55 has been:

1) 180 mm ASP pulley
2) 82 mm TB
3) Long-tube headers + mid x-pipe
4) Mild cooling upgrade (heat exchanger + dual aftermarket IC pumps)
5) Custom dyno tune

And for track purposes, you should also add...

6) Quaife LSD or equivalent
7) A good set of drag radials (M/T or Hoosiers)

Extras....

8) Carbon Fiber air boxes
9) Carbon Fiber tubes
10) Top Mounted Inter-Coolers
11) Meth, NOS, etc...

ArmoE55

I think a nice set of long tubes (MBH or EC), a 172 pulley and a dyno tune by either Jeremy or Jerry will put you damn close to those numbers (BHP).

I would think with those mods(172, long tubes, dyno tune, appropriate cooling, of course), you should probably dyno around 480-500rwhp and 570-580rwtq...am I wrong folks?

Hammer Down

No

Karlson

better be crank, cause 600whp with mods that Mbforever(sorry,keep forgeting your name) won't happen, unless car goes to some mickey mouse BS dyno

Karlson

I got MBH tubes($3k alone), 180mm pulley, cooling and made only 430whp on mustang dynometer. I know mustang reads low, but still.

AKnight55

Yes, looked for used parts in the classified section..

Labor on the header install needs to be considered too..

Roverron

MBH with mid pipe is a DIY'er dream. I did a full install at home in my garage.

xpl0sive

are MBH headers really worth TWICE as much as EC's?

jmb614

I put down 476/540 at the wheels with a 185 pulley, TTM injectors/rail, EC HE, stock exhaust and custom Jerry tune on a mustang dyno. I am hoping to gain an extra 30-40 whp with EC LTH's.

240M3SRT

What kind of rwhp gains have the guys with long tube headers seen, assuming they have the basic mods like an upgraded pulley and tune?

MBH motorsports

Mine looked like this. If looking at the delta of on my car. I picked up 94whp and 127wtq from stock till now. With only 3 mods. MBH Headers, 180mm pulley, and Dyno-Comp tune.
First Dyno chart shows Stock vs MBH Headers only


In this graph you see MBH headers only vs MBH Headers, 180mm pulley, Dyno Comp Tune.

MB_Forever

LOL..... no worries.... The mods I listed above tend to yield the best results on the track regardless of how much power they show on the dyno. I've seen many cars do it over and over again.

In general, dyno numbers will always vary from day to day let alone from dyno to dyno and state to state.... In fact, I've seen posted dyno sheets of the above mods putting down anywhere from 430 rwhp to 520 rwhp on different dynos

On the track, however, (specifically at Famoso raceway) I've seen those mods yield 11.0 to 11.30 @ 125 to 127 mph in 1600 ft DA. I would bet that time can be cut down another 0.2 seconds in negative DA.

nanayaw6

To OP if talking about at the crank then yes, otherwise 600whp would be a def no. Either way the setup you're looking into will get you a very fast/quick car.

240M3SRT

Very nice thanks for the graph!

Yacht Master

nope