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Forum namePerformance/Engine
Topic subject420a Build Suggestions
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=110560
110560, 420a Build Suggestions
Posted by Lamar9875, Nov-10-08 11:36 AM
I have

Stage 2 Hahn race craft Turbo Kit
JE Pistons 8:8:1 Compression, Crower I Beams Rods
Rebuilt Head
6 puck Clutch
Wilbro 225 Fuel Pump
270cc Injectors
Fidanza Cam Gears
020 bored over

More to come:

550cc Injectors
AFPR

Anything I might need to add?, I want to run between 15-20psi
Also I am getting MSpnp
110567, RE: 420a Build Suggestions
Posted by quicksilver99, Nov-10-08 06:38 PM
It sounds like you have a good base to start with. I'm one to be on the conservative side of things and like to leave doors open for the future. So I suggest you may want to look into some larger injectors than the 550's. Possibly 750's. With the amount of boost you say you plan to run you could be in the high 300's for hp if the rest of your car supports your boost level. Yor turbo kit could prove to be a hindreance also for the level of performance you say you want. The hahn turbo's aren't all that big. I've seen a few 16G (am I correct on this guys?) go over 300 hp but thats also pushin alot of hot air. But with all you want there is so much more to go along with this than just the motors internals. You may want to consider a 3/8" fuel feed line also when you instal the FPR. It's not all that hard to convert your stock one to a return. Try the search button up top. There's alot more info available than you'll ever need. And if you plan on goin MS, don't forget to bring along alot of patients. It's not exactly PnP as you listed.
110571, RE: 420a Build Suggestions
Posted by activeauto, Nov-12-08 03:46 AM
port match your intake and exhaust mani. to "port match" your head it will flow 10x better and get pt cruiser adjusters and followers....
110580, RE: 420a Build Suggestions
Posted by DR1665, Nov-13-08 11:29 AM
No need for the PTC lash adjusters unless there are cams more aggressive than your typical, pointless "stage 1" profile. Port matching is a good idea, but I doubt it's going to provide "10X" the flow, if you even feel it at all. It's one of those good ideas irrespective of actual gains.