Guy-Fast

250 whp on a d series isnt done every day. There are some major weak parts in the top end of d series motors that have to be addressed before the 300+whp area can be reached. Aka shitty manifold,weak head,**** size throttle body

IowaTCoupe

SSAC manifolds are OK with a 4-6" long flex pipe at the bottom of your downpipe. Also, in the front the oil pan, put a brace on your Downpipe (takes some weight off mani.

Find a good Tig welder to weld any cracks. The areas around the wastegate flange take the most abuse because of the weight of the external gates. The Runners are fine.

Stephen

lucky for me then cause I'll be using an interally gated turbo Im gonna brace it and use a downpipe with a flexpipe too

peenmysoup

i ran a ssac for 3 months, and everyday the onlything i was worried about was that manifold, just get a hf mani, trust me, it wil be a better pieace of mind

Stephen

yea but did the SSASHIT one actually break? or did you just worry about it?

peenmysoup

worried about it moslty,l only used it for about 100 miles so maybe it whould have taken 101, and i really dont see how they say you can use themn with AC, cuase i chouldnt see a way to make it work

Stephen

yea I understand what you're saying. I don't have my AC or P/S so that doesn't bother me though. I know the manifolds are POS's but I do believe if you brace them well enough then they should work fine.

sohcpwr

like abaz said, add a few extra braces from the turbo to the block ( i used all thread on my buddies whip) and it will hold up. Ive seen people use them for years with no problem.

RKSskier

I just want to use one of these cuz I am not willing to lose a/c or p/s, and from what I hear, I will lose a/c at least with a hf, or cx vx, or any of those. How many people have seen if ac will fit with these or not?

2muchBoost4U

i went around all the welds on my manifold and it was ok, just had a little cracking from the wastegate dump tube going back into the exhaust, put alot of stress on everything.