Picked up a totally stock '87 GN last week for cheap...didn't run, put a new coil pack, module, spark plugs and wires and it's running pretty well now. The car has 115K miles, doesn't smoke or have any other engine problems that I've found (yet).
The problem is the driver's side exhaust manifold is cracked between cylinders 3 and 5, which I have read is typical. This seems to be causing the turbo to spool up a little slow, and I would guess that it reduces the total boost as well.
What is the best option for fixing this problem? Should I have the factory header welded (probably short-term solution, may not work at all)
If I buy new headers, which brand/model is best for a mostly stock car? I don't plan to do many mods, maybe a K&N and chip and a little tweaking here and there.
Thanks in advance,
Jeff
'87 GN
'74 Corvette
'76 454 Suburban
The problem is the driver's side exhaust manifold is cracked between cylinders 3 and 5, which I have read is typical. This seems to be causing the turbo to spool up a little slow, and I would guess that it reduces the total boost as well.
What is the best option for fixing this problem? Should I have the factory header welded (probably short-term solution, may not work at all)
If I buy new headers, which brand/model is best for a mostly stock car? I don't plan to do many mods, maybe a K&N and chip and a little tweaking here and there.
Thanks in advance,
Jeff
'87 GN
'74 Corvette
'76 454 Suburban