hhrfreek

iTrader: (6)

When you get your pistons upload some pics eh? Did you have a certain tech help you with the pistons at Wiseco that I could contact as well? I've decided to stick with 10.4 compression since I will be running e85 most of the time. There are tons of e85 stations in my area.

OttawaMark

iTrader: (3)

Sure thing, I'd be going even higher with e85 but this carburetored hick town tops out @ 91

K1 rods are on a long back order but i should know next week if they can make it happen, otherwise ZZP gets my business.

My Weisco contact is for the Canadian division:

Adam Silverthorn
Wiseco Piston Canada
Phone: (519)537-6281 Ext. 4103
Fax: (519)537-8508
asilverthorn@wiseco.com
Wiseco Manufactures High Performance Forged Pistons & Performance Parts for Motorcycles, ATVs, Snowmobiles, Marine, and Automobiles

But if you fill out the form on their website a rep near you will be in touch.

OttawaMark

iTrader: (3)

That Mcgee guy has really warped my head, has me rethinking some things. I may just keep my stock rods and pistons but do a ring and rod bearing refresh as wiseco has a bunch of tech specs missing from their le5 dbase...and they want me to fill the gaps, lol. I've sent them the gmperf build guide pdf but still missing some info, like dish cc# and rod length (not stroke). They also can't get the K1 rods anytime soon.

377whp on nothing but springs, and a blown sleeve. forged pistons ain't gonna help with weak sleeves...but this might:

- ZZP Girdled Block #

I'm not gonna buy one, but might be good for anyone who wants to eliminate the ecotec weakest link.

I'm gonna stay under 300, with stock internals and skip revving it past 7200. So no neutrals or ati balancer either, at least not yet.

This weeks order, for my xmas party:

Rockauto: ACDelco Timing Chain Tensioner , POSN 1 and 2ACDelco O2 sensors, DNJ Piston ring set and Con Rod bearing kit.

CED: Ecotec Cam Gear Bolt Set, TTY, Ecotec Balancer Bolt (still have to pull side cover to retime after head swap, this bolt is TTY), 2007 Cobalt / Pursuit Service Manual GMPANS

ZZP: Eibach front sway bar, Stage 2 belt and a modular 3.0 pulley, because the 3.1 is way too tight with the phenolic spacer.

$750, $10 more than wiseco pistons after skirt coating, tax and shipping. Yeah I cheaped out but spring is another opportunity to reassess. IPT 4t45e rebuild needs to be saved up for as well.

picking up snap on stud collet housing: CG500-2, Housing (For CG500 Series Collets) and the right collet, which I believe is a m10-1.25 but I need to get a m10-1.25 nut to be sure. Any info appreciated.

I'd love the set: CGM515B, Set, Metric, Stud Remover, 15 pcs. (M6-1.00 thru M16-2.00) but damn, $400+

Edit: ARP nut says 7/16-20...

hhrfreek

iTrader: (6)

Ugh! Yeah I am feeling the same way....frickin McGee guy is right The last thing I want though is to be 400 miles away and break something internally. I am looking at ZZP rods and their JE pistons again. But at the same time...can I make 350whp on an m62? If not then whats the point of me upgrading all this ****. I was thinking I could with a ported head, 2.7ish pulley and e85(along with my already ported SC, ZZP cams and a full exhaust). I just feel like I am really taking a risk on breaking up a piston/rod even though numerous people have pushed well beyond 350whp on the stock bottom end.

Whats up with Wisco? Are you suggesting they want a stock piston/rod to work with?

OttawaMark

iTrader: (3)

I've had ZZP get me some info that wiseco needed, didn't know that the le5 zzp rods are .01 longer than oem so look for A 1/4 point cr boost if you don't take that into account. I'll give this another day to shake out, with the head coming off is the best opportunity to do this once only. It would be overkill, but I'd die if i blew a rod or piston and knew I had the chance to do something about it.

From ZZP: For the 2.4L LE5 pistons, I need the following information:



Rod Length: 5.659” Rod Eye Width: .942” Rod Eye Thickness (thickness above the piston pin): .200

Pin diameter: 20mm

Do you know your cylinder head cc's? 57 We show 60cc on file.

Gasket thickness: .026-.028


The stock pistons and rods make 10.01 compression, we had JE duplicate the stock piston perfectly. BUT when you run our ZZP 4340 rods we had them made .010” longer so that bumps the compression to 10.25.

OttawaMark

iTrader: (3)

Well fawk it, I just paid for ZZP rods and neutral balance shafts.
Guess I'm all in.

hhrfreek

iTrader: (6)

I had a fawk it moment today too! I decided to finally schedule a dyno to see what I am making so I have a baseline to help me decide on internals. I am dynoing tomorrow night at a local shop. I started talking with ZZP and if it looks like I need forged parts I am just ordering their pistons and rods. Zoomer eluded that I would make more power if I rev it out, but I am just wondering if I can put up with neutral shafts and poly mounts. The HHR vibrates like a huge ***** with poly mounts. At the same time though, I wouldn't be taking full advantage of the ZZP cams if I don't throw some revs at them so I may go that route too.

OttawaMark

iTrader: (3)

Ingalls stiffy mount before poly, imo.

DIY poly mounts: DIY poly motor mount hardness specs? - Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more!

I swapped to new oem mounts this fall and may try the diy if they crack by the summer. A couple polyurethane products listed with different hardness ratings so it doesn't have to rattle the teeth.

I'm auto, they don't make as much for us so we've got to improvise...great excuse to cheap out.

hhrfreek

iTrader: (6)

Don't waste your time on DIY poly mount mods. I tried it twice and could not get the polyurethane to bond well enough. It separated within a few weeks and it took like 3 days to cure. I ended up getting TTR trans and engine mounts.

On a side note...I was wondering if simply popping out the stock bushing and reinstalling it at 90 degrees in the stock mount would work. That way power is transferred into solid rubber vs the void area for comfort. As long as they are in the center, it wont change drive line geometry. If I didn't destroy my stock transmission bushings I would try it.

OttawaMark

iTrader: (3)

Good to know, hoping the Stiffy mount will suffice. TTR has poly inserts for the auto I believe but vibrations really irritate me, so we'll see how i react to the zzp neutrals lol.

My new oem rear tranny bushing actually rotated within the housing while I fiddled with it and the offset was enough to make install impossible, I had a hell of a time getting it back to proper position. Your mileage may vary though.

hhrfreek

iTrader: (6)

Dynoed tonight and put down 257whp/233tq.

Current setup:

93 octane 12.0 afr
Ported SC 3.1" (9psi)
LS4 TB
Dual pass/Phenolic Spacer
ZZP cams
Badmab header
ZZP 3" downpipe(no cat)
Stock cat back with Magnaflow muffler

So I know I can go way over 300whp with a ported head, 2.7" and e85...now I just have to figure out if its worth it to get some forged internals

To or not to spend 1500 bucks...FML

I'll figure it out in the next day.

Oh heres one of my dyno runs:

Supercharged 2.4l HHR Dyno - YouTube

OttawaMark

iTrader: (3)

Awesomeness!!!

Were the #s what you had hoped they would be? So many butt dyno optimists round here...

hhrfreek

iTrader: (6)

Lol. I told my boss when I left work today that I was hoping for 265whp. So I was close with my estimate.

Peak hp was at 6700rpm, but it was a nice plateau at 6000rpms and creeped downward at 6800 ...I thought with the cams it would be a bit higher. With a ported head I think it will move the peak hp quite a bit higher. Held over 215tq from 3 to 6k rpms peaking at about 4700.

I don't have a scanner but I will try to get a pic of the graph up soon. Site won't let me upload for some reason...

Here, just linked them from the HHR forum:

https://www.cobaltss.net/forums/dyno...1/#post6164403

hhrfreek

iTrader: (6)

Just got my exhaust:





Sounds way better than the stock tubing w/magnaflow. I can honestly feel the pickup in acceleration after the install. Can't believe it. I wasn't expecting my tune to be so far off after a catback either. Definately flowing now. I put a caliper on the stock exhaust and there was one point where the od was only 2". Otherwise it was pretty a consistent 2.25" This ZZP I got is the 2.5".

In the works for the next 2 weeks:

Sticking with the 3.1" for now
e85 tune

If I have enough room with my 60s on e85, I will put on the 2.9.

Then another dyno. I actually think I may be close to 300whp with the 3.1 and e85.

If I don't have any room with the 60s I am just waiting to run 80s until I port the head and get my new clutch. Thinking about the ZZP 2.4 kit.

OttawaMark

iTrader: (3)

Very nice, they didn't have the 2.5 when I ordered otherwise I'd have that rather than the 3" that sounded like angry barf.

What made you go back to 3.1, I though you was on the 2.9?

I hope you do the ZZP clutch kit, looks pretty sweet if I had the gertrag i'd be doing it.

Hey, how did you get your springs off? I bought a valve spring remover but it is so big and we have no space on our heads. the build bible had some contraption where you bolt it on the head and used leverage to press them down.

ZZP rods and neutrals have arrived, waiting on pistons, some tty bolts (cam gears, balancer), rod bearings and timing chain tensioner. And of course my Euthanasia ported head, he has it ported but is waiting on some parts so he can do his polish.

hhrfreek

iTrader: (6)

I went back to the 3.1 after the SC port. Wait now I don't remember if I mentioned it here. I checked out the Euthanasia SC port and did it myself. I was unsure of the amount of boost after porting it so I tested the 2.9" at 169kpa and the 3.1" at 157kpa before porting. After the port I recorded 163kpa with the 3.1". It was good for a .9psi increase. I am just being a little skittish about throwing it back on. I was thinking the 2.9 after port would be about 182kpa(12psi). Plus I am just getting an e85 tune going so I am going to see what can be done with this big ol 3.1" If I have room with the injectors I will put the 2.9 back on...dang that will make some power. And thats still not spinning the m62 like crazy.

I used the kent moore tool that bolts on the head like the book describes...I think I have install pics...let me look. Honestly I couldn't imagine using anything else. It was cake. That tool is great. Glad I picked it up because I am going to use it again. Got it on ebay for 75 bucks I think. New its a **** load more.

What pistons did you decide on?

I have been asking ZZP about pushing the stock bottom end, but they have shied away from answering directly. I understand though, I guess, this motor could fail bone stock and we are pounding the **** out of it. I am going to push it a bit more with my set up and see what it yields.

hhrfreek

iTrader: (6)

The intake cam installed


Exhaust cam out, pulling springs.

Also get a magnet to pick up the retainers when you compress the springs.

OttawaMark

iTrader: (3)

10.0:1 Wiseco slugs with skirt coating. with ZZP rods it will be 10.25:1 CR

noorj

iTrader: (17)

hhr freak- idk about 60s with e85 on a 2.9, I'm not positive but i think you would be well into the 90% IDC. I saw might as well look into 80s

hhrfreek

iTrader: (6)

So if I ordered the Wiseco pistons they would have all the correct info right? Its just hard for me to pull the trigger on the JE pistons from ZZP. Thats a lot of $.

My other idea was just do the rods. I haven't found any issues of the ringlands breaking. Have you?

I am going to do ZZP rods though for sure. I just don't want to join the crowd of users that upload pictures of their blocks with big holes through the side.

hhrfreek

iTrader: (6)

Yeah I am trying to figure this out. I was advised they would not keep up, but I gathered I would give it a try first.

OttawaMark

iTrader: (3)

Just do both, your in neck deep already.

I was just reading a thread where someones NA le5 blew a piston so who knows, roll of the dice.

My Wiseco #s:

GM LE5 2.4L Ecotec
Qty, 4 pistons, skirt coat, pins clips
Application: Street, Supercharged.
Finished bore size: 3.464" / 88.00mm (stardard bore size)
Stroke: 3.861" / 98.00mm
Rod Length: 5.659"
Rod Eye Width: .942"
Rod Eye Thickness: .200
Pin Diameter: .787 / 20mm
Cylinder Head cc's: 57
Gasket Thickness: .028"
Compression ratio: 10.0:1
Deck Clearance: .020
Block Height: 8.700

Zoomer supplied quite a bit of that info, along with the build bible and some info they already had on file so i hope this is all good data.

OttawaMark

iTrader: (3)

ZZP rods and neutrals:

hhrfreek

iTrader: (6)

Ain't that a fact.

I am going to take a breather and figure out what I am going to do...I will have a few extra bucks to spend in the next two weeks. Just crazy that rods/pistons and clutch could cost me another $2k+ on top the the $$$$$ I have put into this.

OttawaMark

iTrader: (3)

The head is now euthanized!

PortedHead019.mp4 video by euthanasia662 - Photobucket

PortedHead018.mp4 video by euthanasia662 - Photobucket

WOW!

Dirty looking otherwise, gonna need a good scrub when it arrives.