RPG951S

In the process of installing some APE chips, I've discovered that my car (an 88 turboS) currently has a chip with a hand written "DME Cup 87" on it.

In addition, on the outside of my DME has a black label (sealing the bottom of the unit- looks like an offical Porsche sticker) that says: TYPE: CUP-CAR and then PROSCHE95HNCUPO34 on the other side.

Anyone know what this is? Do all turboS's have this (the sticker)

Which is considered a 'better' chip? APE or Cup?

Thanks!

jsonnen

Neither......try Vitesse or Guru as they are much more modern and have been updated quite a bit since the APE days.

Sam Lin

I've got a KLR chip that says Turbo CUP handwritten on it. However, it's a bootleg copy. Yours' labeling means it's a real Cup DME, and should be pretty valuable.

Sam

Oddjob

First, no that is not a standard Turbo S brain unit/chip, you have something special there.

Are both DME and KLR chips/boxes labelled as "Cup" or just the DME? Is the DME a 24 pin chip or 28 (if the whole DME unit is from an '87 Cup car, it should be 24 pin). If the DME box is 24 pin, the Autothority DME chip will not work in the unit, because it will be 28 pin. So if you decide to run the Autothority chip set, there are ways to rig it, but its probably best to look for an 88-89 Turbo DME box.

I believe the Canadian Cup cars in 87 were rated around 250bhp, so I dont think those will be real hot chips. May have some slight ignition advance based on using race fuel, and the rev limiter is either higher or not there. So in the end, the autothority chips will probably run higher boost and have more power output.

RPG951S

The DME & the KLR chips both say "87 CUP XXX" (DME/KLR). The DME is a 28 pin.

I went with the APE chips. A least I know what they are

jsonnen

I'd be careful with the APE chips as many listers have dynoed them and found out that they lean out up top......not good, you could potentially have a headgasket failure depending on how hard you drive your car with those APE chips.
They really haven't been updated in years , why risk it , for $300-$500 bucks you could get Guru's or Vitesse and have alot more power and a safer chip with no lean spots.

Just my 0.02 cents

pk951

I have used APE stage 2 chips in my 87 with 26/8 turbo for two years with no problems.

I sold my chips to My Swiss, upon install we checked the AFR, in the midrange we were at 9.1 AFR very rich, at 6000rpm we were at 13.1 AFR so you can see we were a bit lean at 6000 rpm. We were running a 26/8 turbo tial WG set at 15 psi.

Me personaly i would get a set from Vitesse. You should read what Jermey Hemsel had to say about all three chips APE Guru, and Vitesse interesting reading.

Oddjob

pk951: When you measured those AFR's, did you have the APE style jetted banjo bolt installed?

RPG951S

Guys, I want to bottom line it here.

YOU CANNOT RUN THE APE CHIPS WITHOUT THE BANJO BOLT OR ANY OTHER FORM OF BOOST CONTROL!

The chips ASSUME a mid range boost spike and then a decreasing level of boost at higher RPM's.
If your using a manual/electronic controller, or anything other than a stock wastegate, your ourside of their parameters. Period.

A local TurboS guy has been running his APE chips for 10 YEARS on street/track car. Zero problems. (He's using the BB.)
I've driven his car. It's awesome. That's all I need to know.

jyoon

I've got the APE chips installed with banjo bolt. It works exactly like RPG said. There is a little spike midrange up to 16psi or so and then it falls off to 13 or so at redline. G-tech pro results gave me 238 hp with a test pipe. The chips seem to work well for me, but i haven't tried others.

pk951

Oddjob

We were using MBC set at 15 psi. Maybe with a SMT5 or 6 we could have leaned out the midrange, and richened the top end to 12.5 or 12.0

jsonnen

Do a search on Jeremy Hinsel, he has dynoed Guru-Vitesse-APE-etc and has come up with some very good info, the APE chips aren't even close to the Vitesse or Guru chips as far as AFR and Horsepower are concerned.

jyoon

i would not expect the ape chips to be as good as the guru or vitesse, hope you didn't get that impression. i just meant to say, they work fine in their correct application. the guru chips, from what i understand require a 3.0 fpr and shimmed wastegate. i heard the gurus assume 15 psi to redline, if so, of coarse they are gonna make more power.

jsonnen

Ya Guru sends you a Reliaboost MBC, 3 bar FPR, and the chips also Danno has a new 18 psi chip that puts out some serious torque numbers.

DDP

I agree with jsonnen. Stay far away from those APE chips. They run way too rich in lower rpms and too lean in higher rpms.