syclone3
Member
Well as the old saying goes, better to do things yourself. :rotf: I bought this truck back in 2002. It had a supposedly built engine. At the time it was hard to find a Syclone for less than $12,000 that wasn't in rough shape this part of the country. This truck had a lot of ATR parts, turbo kit, IC. 80,000 miles and from a rust free state. Paid $11,500 for it.
Drive it back from Oregon. Started cleaning it up. Tuned it up a bit. Threw the Bosch platinums away. Fixed the IC water leak. Filters, fluids. Was slow. Terribly so. Sold all the ATR stuff off the truck and made my own Garret setup with a Spearco air to air.
Different chip and new pump. Ran ok. Has sat around alot. Kept mostly AV gas in it. But had a slight miss from day one. Always thought the idle was a little rough from the ATR cam. Was getting ready to put the KB headers on and a 60-1 I had. Put it on the dyno with 100 oct. 15 psi. Made 380-470tq. Then oil came out the breather. Running on 4. Air fuel on the wideband was 11.8-12.0. Didn't see any knock on the tool.
Finally tore it apart this weekend as temps were really low. Motor was on borrowed time.
Supposed TRW forged pistons were .020 stockers. Crank is a 010/010 but perfect. Block looks like 030 will be fine as the piston fried egged some itself on the wall. and it peels off. Oil pump pickup weld was broken and explains the oil pressure moving around sometimes while driving around corners. The pan was welded back together from the original engine apparently exiting some rods. Does appear to have the ATR cam and a double roller chain I can reuse.
The heads were reportedly ported with 2.02/1.60's like the ATR heads. Well they have the valves, springs, screw in studs, guideplates, pushrods and polylocks. Zero porting. So I can clean those up and get the valves done. Same for the intake, little portwork is in order. Had the old ARP headstuds which make it a bitch to get the heads off with the engine in the truck. Will use the new units with the allen heads.
So now I will know whats in the engine. And saved myself some labor on putting in the new torque converter. :tup: Engine will be back together in a few weeks with Eagles, forged pistons, new pump.
Based on the pattern in each cylinder, the injector was a little weak and caused the piston to burn on the edge. Sending them to be cleaned for spares for my beater Syclone and am willing to bet one is way down on flow. Have a new set of Bosch 40's I want to use in this engine. That came from where else, ATR back in 1993. Just get it all running with the new setup and maybe change management systems on it this fall.
Originally before teardown was thinking headgasket. HA.
It did have nice blue Felpros in there and they were still good? Never had much luck with them on other engines.
Drive it back from Oregon. Started cleaning it up. Tuned it up a bit. Threw the Bosch platinums away. Fixed the IC water leak. Filters, fluids. Was slow. Terribly so. Sold all the ATR stuff off the truck and made my own Garret setup with a Spearco air to air.
Different chip and new pump. Ran ok. Has sat around alot. Kept mostly AV gas in it. But had a slight miss from day one. Always thought the idle was a little rough from the ATR cam. Was getting ready to put the KB headers on and a 60-1 I had. Put it on the dyno with 100 oct. 15 psi. Made 380-470tq. Then oil came out the breather. Running on 4. Air fuel on the wideband was 11.8-12.0. Didn't see any knock on the tool.
Finally tore it apart this weekend as temps were really low. Motor was on borrowed time.
Supposed TRW forged pistons were .020 stockers. Crank is a 010/010 but perfect. Block looks like 030 will be fine as the piston fried egged some itself on the wall. and it peels off. Oil pump pickup weld was broken and explains the oil pressure moving around sometimes while driving around corners. The pan was welded back together from the original engine apparently exiting some rods. Does appear to have the ATR cam and a double roller chain I can reuse.
The heads were reportedly ported with 2.02/1.60's like the ATR heads. Well they have the valves, springs, screw in studs, guideplates, pushrods and polylocks. Zero porting. So I can clean those up and get the valves done. Same for the intake, little portwork is in order. Had the old ARP headstuds which make it a bitch to get the heads off with the engine in the truck. Will use the new units with the allen heads.
So now I will know whats in the engine. And saved myself some labor on putting in the new torque converter. :tup: Engine will be back together in a few weeks with Eagles, forged pistons, new pump.
Based on the pattern in each cylinder, the injector was a little weak and caused the piston to burn on the edge. Sending them to be cleaned for spares for my beater Syclone and am willing to bet one is way down on flow. Have a new set of Bosch 40's I want to use in this engine. That came from where else, ATR back in 1993. Just get it all running with the new setup and maybe change management systems on it this fall.
Originally before teardown was thinking headgasket. HA.
It did have nice blue Felpros in there and they were still good? Never had much luck with them on other engines.