It will run on a stock tune but it won't be right in all area's of the calibration. Since when is a 220/224 camshaft small? A 206/210 is small lol. A local dyno shop can get it close as they have wideband tuning.Ī corvette forum sponsor said they thought they could get the tune close as the cams pretty small. I do need to get it tuned before WOT the car as im afraid to on the factory tune.
#Corvette servo 4l60e and what else after cam swap driver
There’s lots of feedback that the 1838 is a great daily driver with very similar off-the-line throttle response, plus added top end power.ĭo you have a shop where you do mail order tunes and familiar with these vehicles? Supposedly the 1838 & 1839 will work with a stock tune. I went with the 1839 as its a daily driver and stock torque converter. Heres what elgin told me when i inquired about purchasing one of their sloppy cams. I've only put 250-300 miles on the new cam on the stock tune. Is the line pressure what changes the shift firmness when i select moderately firm on the mail order tune form? When getting a tune for cam and headers do they usually add timing or reduce timing from stock? I run it on 93 octane but the car will knock retard if run on 91 or lower octane?įor some reason i thought the ls1 f-body had 22 degrees timing from the factory. Wondering how much the stock maf or 99 pcm can calibrate for air or fueling it needs to not damage the engine. I was changing the stock c5 balancer and had to remove the rack and pinion so i threw in a small 1839, tsp 7.4 pushrods, new valve seals and pac 1219s, assault racing balancer and arp balancer bolt. Its 275$ for a mail order tune where i send in my pcm or 450$ for a local dyno shop tune. I was curious if itd be fine to drive until i can get it tuned. Car also has tsp headers and is a 99 corvette stock auto 4l60e with stock 3.15 gears and converter. I do a lot of remote tunes on these cars.Do you know if its going to hurt the engine at all to run on the factory tune with the small cam? 286/282 220/224 112lsa. It's a good idea to increase the line pressure in the tune just a bit. The stock shift points are 6000 rpm for the 1-2 shift and 5900 for the rest. Depending on the type of fuel you run (actually what the knock learn factor is) it will be between these two values at WOT. The Low Octane table is set for 19 degrees. The stock 99 Vette High Octane spark table is actually set to 28 degrees at peak hp.