Engine, Exhaust, Transmission and Differential Post questions here that have to do with the engine, cooling system, air intake, exhaust, Transmission and Differential

SLK32 Performance Questions

Old Aug 3, 2012 | 12:48 PM
  #1 (permalink)  
trevorradman's Avatar
Thread Starter
Joined: Aug 2012
Posts: 28
Likes: 0
From: Colorado Springs, CO
Default SLK32 Performance Questions

I have a 181 pulley and tune on order from Eurocharged. I am also ordering a DCAI and would like some input on supporting mods before I place my order. This is my daily driver, reliability is important!

1. Cooling. I have noticed percieved heatsoak with any aggressive driving. I know the new pulley will not help, and want to battle this issue. What do you recommend keeping in mind cost is a factor here...
-Supercooler/Eurocharged HE, at $450, the most expensive but is this the most effective?
-Johnson CM30 IC pump, at $200, I am skeptical of just circulating more hot water through the system... faster(unless adding cooler, which I cant afford both right now, but will later)
-Radiator/HE isolation/separator kit, at $70 this seems to be a bargain, and even something I can easily fab myself. How much benefit might you see from separating the two?
-Radiator fan on 10 degrees sooner... Free with tune.

2. Fuel - What is the threshold for mods before these cars run out of Fuel? Is/are the weak link/links in the Fuel Pump, Injectors, Rail, Pump Wiring, Fuel Pressure Regulator? I hear the pulleys dont require a tune from Rob at Needswings, however other SC cars I have modded always ran lean after a pulley.

3. Pulley Saver Kits - Needswings/etc... $200. Is there really that big of problem with the pulleys? I'm trying to justify the expense and have heard mixed reviews.

Any suggestions welcome!

T
 
Reply
Old Aug 3, 2012 | 06:20 PM
  #2 (permalink)  
oledoc2u's Avatar
Senior Member
Joined: Mar 2008
Posts: 14,605
Likes: 38
From: IN
Default Re: SLK32 Performance Questions

Well, you will get a whole lot of opinions. There are a lot of threads on here dealing with everyone of the questions you just asked. I guess my question is what are you going to be doing with it? Round tracking, you need some cooling, drag racing...I don't agree with many on drag racing. I do run the seperation kit on both my cars. It helps. I am sure you will get a lot of help...here...
 
Reply
Old Aug 3, 2012 | 07:07 PM
  #3 (permalink)  
rmaier's Avatar
Senior Member
Joined: Aug 2007
Posts: 1,087
Likes: 13
From: Casper WY
Default Re: SLK32 Performance Questions

I can tell you for sure here in CO we see higher temps for the IAT's due to the elevation......I have many mods on my car and the biggest hurdle you have is heat saturation of the intake charged air. Free flowing intake is a first step even before the pulley in my opinion. I run a dual 3" CAI and it works well with the 62mm S/C pulley and tune. Fuel delivery only becomes an issue if you push the engine all the time (racing) I only have been to Bandimere 2 times and it was not an issue. For spirited street driving the fule system is sufficient. If you want to be the fastest you can get all kinds of tips from people on this site. You can go as fast as you can afford. But if you don't want to break things keep to the tried and ture mods well documented on this site.
 
Reply
Old Aug 3, 2012 | 07:09 PM
  #4 (permalink)  
rmaier's Avatar
Senior Member
Joined: Aug 2007
Posts: 1,087
Likes: 13
From: Casper WY
Default Re: SLK32 Performance Questions

sorry about the spelling ....long day
true=ture
fule=fuel

ctfs
 
Reply
Old Aug 3, 2012 | 07:12 PM
  #5 (permalink)  
rmaier's Avatar
Senior Member
Joined: Aug 2007
Posts: 1,087
Likes: 13
From: Casper WY
Default Re: SLK32 Performance Questions

BTW we have a run coming up on the 12th
Check the CCC (Colorado Crossfire Club) site or the midwest CO forum on here for details we'd like to see you attend.
 
Reply
Old Aug 4, 2012 | 07:13 PM
  #6 (permalink)  
trevorradman's Avatar
Thread Starter
Joined: Aug 2012
Posts: 28
Likes: 0
From: Colorado Springs, CO
Default Re: SLK32 Performance Questions

Originally Posted by rmaier
I can tell you for sure here in CO we see higher temps for the IAT's due to the elevation......I have many mods on my car and the biggest hurdle you have is heat saturation of the intake charged air. Free flowing intake is a first step even before the pulley in my opinion. I run a dual 3" CAI and it works well with the 62mm S/C pulley and tune. Fuel delivery only becomes an issue if you push the engine all the time (racing) I only have been to Bandimere 2 times and it was not an issue. For spirited street driving the fule system is sufficient. If you want to be the fastest you can get all kinds of tips from people on this site. You can go as fast as you can afford. But if you don't want to break things keep to the tried and ture mods well documented on this site.
I really want to order the DCAI, but Rob hasn't replied to my emails. I think I'll go with the separation kit and DCAI for now(if I can ever get a hold of Rob), add the cooler/pump later, my pump appears to have been replaced recently. I'd love to hook up next time you run Bandimere! I'm always up for a trip to Cripple Creek as well! Do you have any other SLKs in the crossfire club?

Are there any needswings alternatives? I would like to have my intake by next weekend... considering this solution from maxcichon, although its not quite as sexy as the needswings DCAI:
https://www.crossfireforum.org/forum...ai-vs-cai.html

If I DIY I can still afford a cooler and pump The separation kit looks easy enough to fab, but I'd really rather just spend the money on tested parts.
 
Reply
Old Aug 7, 2012 | 10:22 AM
  #7 (permalink)  
trevorradman's Avatar
Thread Starter
Joined: Aug 2012
Posts: 28
Likes: 0
From: Colorado Springs, CO
Default Re: SLK32 Performance Questions

DCAI, Coolant Separator, Zeitronix with DashDaq(GPS), 181 pulley/Cable/Tune all on order. Jesus this is getting expensive... I'm not sure how I'm going to break this to the wife....
 
Reply
Old Aug 7, 2012 | 10:36 AM
  #8 (permalink)  
JHM2K's Avatar
Senior Member
Joined: Dec 2006
Posts: 6,349
Likes: 17
From: Murfreesboro, TN
Default Re: SLK32 Performance Questions

Originally Posted by trevorradman
DCAI, Coolant Separator, Zeitronix with DashDaq(GPS), 181 pulley/Cable/Tune all on order. Jesus this is getting expensive... I'm not sure how I'm going to break this to the wife....
Forgiveness > permission... I run into the same thing occasionally.

Honestly my wife supports the hobby, but in spite of the support she still gets sticker shock from time to time.
 
Reply
Old Aug 7, 2012 | 10:38 PM
  #9 (permalink)  
trevorradman's Avatar
Thread Starter
Joined: Aug 2012
Posts: 28
Likes: 0
From: Colorado Springs, CO
Default Re: SLK32 Performance Questions

In addition to the DCAI, Coolant Separator, Zeitronix with DashDaq(GPS), 181 pulley/Cable/Tune, 3" y pipe, 02 bung, anything else I need to order? I hate getting in the middle of a project and not having all needed parts!

I've read all day but think I am going to need some help on the wiring of the ZT-2 to the DashDaq, mainly how to read teh stock MAP instead of adding a boost gauge.
 
Reply
Old Aug 7, 2012 | 10:55 PM
  #10 (permalink)  
grip grip's Avatar
Senior Member
Joined: Mar 2011
Posts: 3,906
Likes: 15
From: TN
Default Re: SLK32 Performance Questions

Originally Posted by trevorradman
In addition to the DCAI, Coolant Separator, Zeitronix with DashDaq(GPS), 181 pulley/Cable/Tune, 3" y pipe, 02 bung, anything else I need to order? I hate getting in the middle of a project and not having all needed parts!

I've read all day but think I am going to need some help on the wiring of the ZT-2 to the DashDaq, mainly how to read teh stock MAP instead of adding a boost gauge.
https://www.crossfireforum.org/forum...boost-map.html

Check out the link or my signature.
 
Reply
Old Aug 8, 2012 | 02:34 PM
  #11 (permalink)  
bruco1's Avatar
Joined: Oct 2011
Posts: 71
Likes: 0
From: Aurora, IL
Default Re: SLK32 Performance Questions

Pulley saver kit. Not an option IMO.
Catch can.
 
Reply
Old Aug 11, 2012 | 10:23 PM
  #12 (permalink)  
trevorradman's Avatar
Thread Starter
Joined: Aug 2012
Posts: 28
Likes: 0
From: Colorado Springs, CO
Default Re: SLK32 Performance Questions

Originally Posted by grip grip
https://www.crossfireforum.org/forum...boost-map.html

Check out the link or my signature.
Thanks! Would you mind sharing your other calcs? IAT? As far as logging for the tuner, any specific data points I need setup besides RPM, IAT, Boost, Timing, A/F, Injector readings? I logged some runs today, but unable to make much sense of them
 
Reply
Old Aug 12, 2012 | 01:17 PM
  #13 (permalink)  
latemodel21's Avatar
Forum Regular
Joined: Apr 2011
Posts: 531
Likes: 32
From: Gilroy, California
Default Re: SLK32 Performance Questions

Originally Posted by bruco1
Pulley saver kit. Not an option IMO.
Catch can.

I agree !

Curiously, my first SLK32 (it is the earliest of my 3 SLK32s which are all 2002s) was/is lacking a mounting boss (that is part of the waterpump casting) that the Pulley Saver Kit relies on for mounting. I did a little research and concluded it was correct (and original). My other 2 SLK32s have the boss on the pump (and they have original pumps as well).

I discovered this after I had already received my Pulley Saver Kit and Rob (Needswings) excepted the return without hesitation (great guy, great business).

I only mention this so that you look at your SLK32's water pump before you order.

I have a 181 on that car and with a new belt properly tensioned, I still smell a curious odor after spirited boosting that I attribute to mild belt slip (smells like opening a fresh box of bandaids) ... So IMHO this vehicle (and yours trevorradman) would definitely benefit from the PSK.


The NEEDSWINGS catch can is a beautiful piece doing a much needed job and is a must-by. Considering its quality it is very fairly priced.

Chris
 

Last edited by latemodel21; Aug 12, 2012 at 04:07 PM.
Reply
Old Aug 15, 2012 | 12:04 AM
  #14 (permalink)  
trevorradman's Avatar
Thread Starter
Joined: Aug 2012
Posts: 28
Likes: 0
From: Colorado Springs, CO
Default Re: SLK32 Performance Questions

Originally Posted by rmaier
I can tell you for sure here in CO we see higher temps for the IAT's due to the elevation......I have many mods on my car and the biggest hurdle you have is heat saturation of the intake charged air. Free flowing intake is a first step even before the pulley in my opinion. I run a dual 3" CAI and it works well with the 62mm S/C pulley and tune. Fuel delivery only becomes an issue if you push the engine all the time (racing) I only have been to Bandimere 2 times and it was not an issue. For spirited street driving the fule system is sufficient. If you want to be the fastest you can get all kinds of tips from people on this site. You can go as fast as you can afford. But if you don't want to break things keep to the tried and ture mods well documented on this site.
What did you run at Bandimere? I'm heading next week or the following. What PSI are you seeing? Seeing how low my stock boost is, I'm thinking stacked pulleys would work well at this altitude without as much fuel issues as the guys at sea level see... How are your A/F's? Know anyone running stacked this high?
 
Reply
Old Aug 15, 2012 | 12:14 AM
  #15 (permalink)  
trevorradman's Avatar
Thread Starter
Joined: Aug 2012
Posts: 28
Likes: 0
From: Colorado Springs, CO
Default Re: SLK32 Performance Questions

Originally Posted by bruco1
Pulley saver kit. Not an option IMO.
Catch can.
Thanks for the suggestions, I ordered both, along with some intake gaskets for after I clean my intake. Next up is cooler/pump... After that maybe a little nitrous or stacked pulleys, or both. Not sure if I'll need more fuel at this altitude.
 
Reply
Old Aug 15, 2012 | 12:54 AM
  #16 (permalink)  
rmaier's Avatar
Senior Member
Joined: Aug 2007
Posts: 1,087
Likes: 13
From: Casper WY
Default Re: SLK32 Performance Questions

my mods
62mm S/C pulley
custom 3" DCAI
2 h/e's in serial
custom pulley setup for belt slippage
oil catch can
8.5mm magnacore wires
2 steps colder plugs
removed resonator
Eurotune


4th gear pull only netted 342 rwhp
My 65mm pulley with the same mods was at 328 rwhp
remember this is done at an altitude of 5382 so figure that along with humidity at 8% and 92 degrees F
29.64 bar and the adjusted rwhp would be 369


My best at Bandimere was 13:11
That was with the 65mm pulley and all the same mods above minus the resonator delete.
 
Reply
Old Aug 26, 2012 | 09:19 PM
  #17 (permalink)  
trevorradman's Avatar
Thread Starter
Joined: Aug 2012
Posts: 28
Likes: 0
From: Colorado Springs, CO
Default Re: SLK32 Performance Questions

I installed the pulley and only picked up 2.6 lbs of boost(12.63 total at WOT). The perf increase was ok, however I'm moving up my priorities to add a crank pulley, HE, and pump.

I dont want to mess with fuel right now, however I am really considering the 185... How much will the DCAI increase boost? I'd hate to buy the 181 and 'have'(hahaha) to buy the 185. I want to be at 17lbs.

Hopefully I'll have the other parts from Rob next week.

T
 
Reply
Old Aug 26, 2012 | 09:24 PM
  #18 (permalink)  
trevorradman's Avatar
Thread Starter
Joined: Aug 2012
Posts: 28
Likes: 0
From: Colorado Springs, CO
Default Re: SLK32 Performance Questions

Originally Posted by rmaier
my mods
62mm S/C pulley
custom 3" DCAI
2 h/e's in serial
custom pulley setup for belt slippage
oil catch can
8.5mm magnacore wires
2 steps colder plugs
removed resonator
Eurotune


4th gear pull only netted 342 rwhp
My 65mm pulley with the same mods was at 328 rwhp
remember this is done at an altitude of 5382 so figure that along with humidity at 8% and 92 degrees F
29.64 bar and the adjusted rwhp would be 369


My best at Bandimere was 13:11
That was with the 65mm pulley and all the same mods above minus the resonator delete.
Its very nice to hear from someone else at this altitude. How much boost did you make with 65mm and 62mm pulleys? How are your IAT's? Why did you drop the plugs 2 heat ranges? How did the tuning go with Eurocharged at altitude?

T
 
Reply
Old Aug 30, 2012 | 05:55 PM
  #19 (permalink)  
trevorradman's Avatar
Thread Starter
Joined: Aug 2012
Posts: 28
Likes: 0
From: Colorado Springs, CO
Default Re: SLK32 Performance Questions

Originally Posted by rmaier
my mods
62mm S/C pulley
custom 3" DCAI
2 h/e's in serial
custom pulley setup for belt slippage
oil catch can
8.5mm magnacore wires
2 steps colder plugs
removed resonator
Eurotune


4th gear pull only netted 342 rwhp
My 65mm pulley with the same mods was at 328 rwhp
remember this is done at an altitude of 5382 so figure that along with humidity at 8% and 92 degrees F
29.64 bar and the adjusted rwhp would be 369


My best at Bandimere was 13:11
That was with the 65mm pulley and all the same mods above minus the resonator delete.

Stock tires? What was your 60'? Thanks for the info, gives me at least something to shoot for.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ralph289
Crossfire SRT6
17
Sep 21, 2015 09:34 PM
rmcdaniel12
Crossfire SRT6
3
Sep 21, 2015 10:58 AM
grip grip
Other Cars Etc
19
Sep 19, 2015 08:43 PM
Sweet2002
Crossfire SRT6
3
Sep 13, 2015 02:12 AM
brandoni
Crossfire SRT6
0
Sep 6, 2015 07:35 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


All times are GMT -4. The time now is 06:20 AM.