Join Date: Jan 2003
Location: Boolarra, doh! :-/
Modding the EB (finally!), any advice for me?
I have several general questions regarding what to get for my EB (V8, auto). Firstly I’ll give you all a rundown of what I’d like to do to her: The CAPA Powerdyne kit has gotten me *very* excited, and by the end of summer I should have $2-3k to play with. This obviously isn’t nearly enough for the kit, and my car is COMPLETELY stock, however I was thinking of modding the engine’s intake/heads/exhaust before supercharging.
I would like to get the following:
• 75mm MAF (to use before I get the tuned 73mm MAF with the Powerdyne kit, or maybe get the 73mm one and delete it from the kit when bought?)
• 70mm T/B
• Explorer intake manifold
• GT40 (p?) heads
• 3.73 diff gears
• Twin 2.5” exhausts
• Extractors (I will get back to this in a minute)
• Cam + RRs (ditto)
• Underdrive pulleys
• Thermofan conversion
I am opting for the Explorer intake and the GT40 heads for “truck” style performance which I believe will suit my driving style best as I tend to do a lot of cruising, or low to mid range (revs) squirts from time to time. Also I think these would suit supercharging application quite well too (correct me if I’m wrong). My aim is for a “mild/budget” setup with the Powerdyne blower, as I don’t want to sink more dollars into such areas as the bottom end, block, transmission, fuel delivery (although slightly larger injectors [42lb?] would probably be a good thing!)
At the end of summer, I’m planning to get the diff gears, twin exhaust + extractors done, plus maybe the MAF & T/B. My main questions are:
• What type (tri-y/4-in-1)/brand extractors should I get which would suit the future Powerdyne setup? I’d like extractors which connect up OK with the standard E7 heads, and will also connect up with the GT40s (if this isn’t possible, I’ll wait until later on when I can afford both extractors + GT40s & get them done at the same time)
• What profile cam should I get which would suit a blown 5.0? I would mainly like power from 1500 to 5500rpm, as I doubt that I will go past 5500 regularly, if at all (unless by changing the engine’s top end its power range climbs?). I’m aware that the Powerdyne kit comes with a chip to smooth things out, so I suppose if I get a cam in first (or simultaneously) I could get a chip that would run best with this setup, rather than having to get another chip later on to suit a cam that’s fitted afterwards.
I mainly want to get things right the FIRST time, rather than say get some extractors now & find out that they either don’t mate with GT40 heads later on, or that they don’t work too well (efficiency/power) when the Powerdyne graces the engine bay. My knowledge on this stuff isn’t the best, so if some of the stuff that I’ve said above is complete bullshit, or if I’m missing some important features/mods which need doing to make the above all work, please point this out to me, & hit me with a big stick until I know better!
What I’d like from my EB is a tough, blown streeter, daily driven! Also, I currently get 500+km per tank, and would like 350+ (pref 400+) km per tank after it is supercharged so that I’m not filling up after every trip.
'91 EB Fairmont Ghia V8.
Pacemaker PH4000 extractors
Meaty semi-twin system
AUII XR8 t/b & maf, ELGT snorkel
BA semi-manual shifter conversion
Electronic shift kit
4.11 Hydratrak LSD
Explorer intake manifold
Contra 16x9 rims, rubber: 225(f)/245(r)
Chiptorque HP2 chip
ET: 14.78 @ 91.48mph, 137rwkw!