After a search I do not find anyone who reports doing this, not sure if I overlooked anyone. I just won a takeoff blower on Ebay, and intend to disassemble it and port the intake section as well as the exhaust port on its base. I also intend to fill the two side holes outside the main port on the base. These smaller ports are there solely for noise control, and cause a slight loss in boost. I like the blower noise, I like boost, so I am going to terminate their purpose. I also intend to port match the intake tube to match the blower port, and smooth it internally.

So, if anyone has done anything like this, let me know. I appreciate any input. I have a background in this type of mod from my '02 Lightning, and the M112 Eaton on it. The side port filling and intake/exhaust porting on the larger blowers leads to gains of 7.5-10% in wheel horsepower, with increased efficiency and boost levels with no change to pulleys. I am curious as to whether our smaller blowers will show like gains. Below is a pic of what I am talking about:

 

Along with the Cylinder head that I am working on, I have a supercharger in the works also.. The hard part is the dissasembly. You need a special puller to take the pulley's off. We had to make one out of a "Close Fit"

We will let you know how it all turns out. We are also just looking into special lubricant for the rotors also.

Thanks,
Dan
Pilo Racing

 

Like this?



http://www.theoldone.com/forum/topic.asp?TOPIC_ID=13424

 

Yeah, its been done. Saw no appreciable gains but that was at 15% reduction.... it does sound awesome tho...


--
Cheese

 

Looks exactly like what I had in mind. I cannot seem to log into the site to see the thread, though I have registered twice with two of my emails/usernames, no response from the auto-verifier.

I find it hard to believe that no gains were found, and am very curious to see that thread.

 

my rig; the blower was done by the old one. changed my dyno readings from 163 to 178 wheel hp. Now I am the fastest and the lightest east of the missisip. I also had my custom exhaust on there, but we all know that didn't do much. Previous drag runs were 14.7, so it must be in the 13's now.

 

do i detect a bit of sarcasm?

 

the old one is a master; his $1,500 head job is beautiful and his experience is way beyond anyone else. If you ever get logged on to his site, definitely read the "how to build a 2 liter" post with some outrageous photos. had me drooling.

 

I am doing my best to get there, but no dice so far. Not sure if his board is working properly for registration currently.

jlm, sarcasm aside, was that your blower?I am going to do the work regardless, but I am looking for some experience from others here.

 

yes, and the hp readings are correct. done at Helix where my car has a dyno history. TOO does at least a blower a week, mostly Jackson Racing Eatons. he ports the intake and out, adjusts the port openings for thecorrect 120 degree timing, re-coats the blades and plugs those triangles. not exactly cheap, but he is the man. who else has even done one or two? send them an e-mail about the log-in; the site has some major info on hot-rod engine work.

staff@theoldone.com
_________________
""the onus of proof is on he who asserts the positive."

 

Wow... some of that stuff on theoldone site makes me wish I'd kept my old Integra...

I didn't see anything about the MINI, but I didn't dig into the forums either.

 

>>the old one is a master; his $1,500 head job is beautiful and his experience is way beyond anyone else. If you ever get logged on to his site, definitely read the "how to build a 2 liter" post with some outrageous photos. had me drooling.

Hey JLM,

Have you seen this head work yet that we we just got completed prototyping?

www.northamericanmotoring.com/modules.php?op=modload&name=phpBB_14&file= index&action=viewtopic&topic=22669&2

Thanks
Dan
Pilo Racing

 

jlm,
You're giving away all our secrets

--
Cheese

 

Pilo: looks like your head is about ready; did you ever check out the work TOO does? amazing!

look in the BBS under "Technical...Ask Too" search under mini. some pics of my head underway in one of the threads.

_________________
""the onus of proof is on he who asserts the positive."

 

jlm,

What was the cost on the blower work and what did he do exactly? I read the forum on theoldone.com, but it wasn't quite clear what he did. Did he coat the rotors?

What work was finally done on the head? What did he enlarge the exhaust valves to? Also, was the dyno from just the changes to the blower or the blower and head?

What boost are you now making?

Lot's of questions, sorry.

 

blower tweak was $800. he does entirely re-coat the lobes. His claim, besides inproving the efficiency by plugging the triangles and timing the port openigs, is for reduced air friction do to streamlining the portholes and lips and therefore lower temps, which would reduce boost psi, as I am sure you know, while pushing more O2 through. I am getting a max of 18 on my autometer gauge, but that is about what I got before, highest case, (with the 15% pulley). that is what was dynoed, not he head or cam.

the head is still in his shop; there is a "no wonder they call it mini..." thread that discusses what he did and has some juicy pics. I believe he felt the largest exhaust valves that would fly were 1mm oversize. Bear in mind that he is setting this up to work with a slightly higher lift cam with slightly different duration and higher compression pistons. all of which might influence the final valve size, as well as what he feels is adequate separation from the cylinder walls for proper flow.

 

jlm,

wow. So you got 15 extra hp with the supercharger modifications? Wow! Is he coating them the same way as the new M45 on the JCW?

 

checking my notes: the two readings were 167 (on 10/2) and 178 (on 11/22/03), done months apart but same dyno.

dynos mislead, as the higher hp reading came from using a slightly higher redline, although the plateau was at 178hp from about 6400 to 6800 and the other run showed 167hp from 6000 flat out to 6400.

the torque curves were virtually identical at 153 ft-lbs @3750 up to 5500 but the latter run kept on pulling to 6400.

the changes at the second run were: blower mod, new exhaust.

old exhaust was supersprint header, stock cat, 2-1/2" tubes, Rogue mufflers.
the new exhaust was same header, 3" high flow cat, 2-1/2" Spiralflow resonator, twin supersprint mufflers, twin peashooer tips..

it looks to me like the improvements were to boost/flow at >5500 rpm.

next mods to test will be the AMD chip and extrude-honed snoot

 

I wouldnt take Endyn or TOO's claims too seriously.. they have been claiming that outrageous +20 psi Supercharger to be relaesed since 98. I thought it was magnificent when i found it turns out most of that is fathomed.. wouldn't you have heard about a 400hp ITR on +20 PSI more than that, no one would want a turbo... its bogus..

now they might be capable of rebuilds and doing the work this post is about but like i said be weary

 

JLM,

Our head guy is already getting a 1mm larger Exhaust Valve made. He agrees that 1mm seems to be the size to go as well. I'll try to get over and look at your Cyl head.

 

We also just discussed the way that he will be filling in the holes on the Supercharger. We have decided to go with an Epoxy Resin over the JB Weld. The reason for this is that he has done much testing and has undergone much training on the use of epoxy resins, and feels that it will provide a longer lasting solution then JB Weld.

 

Several of the Lightning Eaton porters are using A B Epoxy as the filler. I am trying to locate a local source for this material.

 

Any progress on the SG Dan?

TOO's site is awesome! It's great to have that experience to tap into.

 

So I hear... I still have had no luck at all with their board registration or getting any reply from their webmaster on the issue. Sucks to have a source of information and be unable to peruse it.

 

I was able to log in a few minutes ago......