WJM Posted January 16, 2004 Share Posted January 16, 2004 Ok, i remember the Skipster saying there are differences in cams between the Vane style and the MAF style turbo cars. Skip, and everyone else, what are the cam specs? Ive got an extra set of 89 turbo cams laying around, and Im thinking about throwing them in my GL-10 as a summer or srping thing for aobut 5-10 more HP...if thats the case. Its got no high end! BTW: My RX racer cams, they wont make it into my GL-10 for dyno time, no time to do it, i need 2 hrs out in the cold driveway, and i ust dont have that. So, they have been sold. Anyhow, does anyone know the cam differences? Quote Link to comment Share on other sites More sharing options...
JonOfScio Posted January 16, 2004 Share Posted January 16, 2004 it only takes you TWO hours to change cams in your engine? what all is entailed? Quote Link to comment Share on other sites More sharing options...
WJM Posted January 17, 2004 Author Share Posted January 17, 2004 Yeah, two hours. Taking the cam cases only took me 20 mins for the turbo side, and about 25 mins for the disty side. Assembly..since you have to set the cam follers on, and be careful about setting the cam case on, w/out knocking the followers off, it takes a little longer. i think it was 30 on the disty, and the same for turbo. BUT...then you have to set the t belts and disty timing. Since i dont have an tbelt covers, its easy. So that takes all of 5 minutes. But then again, i didnt, DID NOT, change the cams in my GL-10 over to the race spec RX cams i had. Those are sold now. But i have got the whole head job down to an art with the engine out of the car. Quote Link to comment Share on other sites More sharing options...
electryc_monk Posted January 17, 2004 Share Posted January 17, 2004 I kinda know a feeling your discribing..... its a familiarity with a usual motion. kinda like a simple function of downshifting to pass someone when your busy with the rear view mirrors to "time the launch just right". The cam swap and the head swaps are very familiar to me of late :>) too. as for the amount of speed/time to do a set of cam towers and start her back up??? I don't know. But I could definately say that I can have an engine in a car and running in significantly less then 8 hours from sitting on the bench - IF I had to do it [no hoist] and had ALL THE PARTS IN ONE LOCATION. (winks towards Calebz, Mike and Beth) LOL in fact I'd be willing to guess I could do it in less then 5 hours - and this is solo, FYI. Quote Link to comment Share on other sites More sharing options...
WJM Posted January 17, 2004 Author Share Posted January 17, 2004 Ive pulled an engine, torn it down to shortblock, replaced all the seals, put it together, and had it running in about 5 hrs. I had a shop tho....too bad i cant use that one anymore! Engine out and in, in less than 1 hr. Quote Link to comment Share on other sites More sharing options...
WJM Posted April 18, 2004 Author Share Posted April 18, 2004 Does anyone know for sure if there are cam differences? I know that an 88 RX, and the 86 GL-10 (back in stock form) Both seem to have the same power delivery....but the 87+ is supposed to have more power up high according to the books. Quote Link to comment Share on other sites More sharing options...
Warp3 Posted April 18, 2004 Share Posted April 18, 2004 I know that an 88 RX, and the 86 GL-10 (back in stock form) Both seem to have the same power delivery....but the 87+ is supposed to have more power up high according to the books. Yes, but it's also only a 4hp difference at like 400rpm higher. Just the switch from the VAF to the hot-wire MAF (and the resultant reduction in airflow restriction (which makes a bigger difference at higher RPM) and the ECU retuning to accomodate the airflow difference) could likely have pulled that off. Note that the torque numbers (and the RPM for the torque peak) remains the same. I'm not saying the cams aren't different, since I haven't messed with them, I'm just saying that the one known change between the two models could explain the difference in power ratings alone. Quote Link to comment Share on other sites More sharing options...
WJM Posted April 18, 2004 Author Share Posted April 18, 2004 Skip has said that the cams are the difference in the power, and the engine has power up high where it didnt before.....thats what prompted me to think that........ My original theory was that the MAF vs flapper made the real difference....also the fact that the 87+ EA82T has some kind of boost control solenoids, and many things are different with the ignition/spark delivery system compared to the pre 87's....most notibly, vac advance is no longer present, the knock sensor system is different, the whole disty is different, and some did not come with EGR systems. Also, I have not found any figures on the Spyder equipped XT Turbo....there MUST be a huge difference there. Air flow characteristics are way different with that intake. EDIT: Since the 87+ turbo cams are not here in the garage anyways, im going to leave the stock 86 ones in it. Quote Link to comment Share on other sites More sharing options...
Myxalplyx Posted April 25, 2004 Share Posted April 25, 2004 Ive pulled an engine, torn it down to shortblock, replaced all the seals, put it together, and had it running in about 5 hrs. I had a shop tho....too bad i cant use that one anymore! Engine out and in, in less than 1 hr. You know, someone with your experience is needed in the scooby community. Perhaps you might consider opening your own shop. Quote Link to comment Share on other sites More sharing options...
WJM Posted April 25, 2004 Author Share Posted April 25, 2004 Ive thought about that. Right now...as soon as my welder gets here...I'll be officially opening 'WJM Rallye Sport' - Performance parts for the EA82T, and Gen 3 cars (1985-1994 DL/GL/GL-10/RX/XT/XT6/Loyale/Leone) Quote Link to comment Share on other sites More sharing options...
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