When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Silverflyer Evo 9 FP green 73HTZ MHI S2 cams results
Evo IX
Stock block
FP Green HTZ 84mm MHI (FP Ported)
FP race manifold (Curt Brown Ported)
GSC S2 cams with 5040 springs
Stock head - refreshed with a valve job
FIC 1650cc HighZ injectors (resister bypass)
TSCOMP Double pumper with pressure switch for second pump (two walblo 255s)
boomba fuel rail with stock FPR and lines
Buschur TBE with high flow cat and large magnaflow muffler
Invidia 02 housing
Buschur FMIC/LICP/UICP
Stock IM and TB (Curt Brown Ported) (MilSpec High Pressure Throttle Shaft Seals/Rebuild)
Spoolinup COP
Tial QR
Grimmspeed 3-port EBCS
Stock ECU with speed density tuned by TSCOMPTUNED
Oh damn that's good for an FP Green on pump gas. Very nice numbers! Is the HTZ really that large? Any plans for an E85 tune?
From what I researched the new HTZ compressor flows close/the same as the original FP Red with no loss in spool from the original green. I'm glad I had FP upgrade the compressor when I had it rebuilt.
E85 coming in the Spring/Summer 2018. I think we only have E70 winter blend available in Illinois right now. I have to go and test a batch to find out.
Last edited by silverflyer; Dec 21, 2017 at 03:06 PM.
From what I researched the new HTZ compressor flows close/the same as the original FP Red with no loss in spool from the original green. I'm glad I had FP upgrade the compressor when I had it rebuilt.
E85 coming in the Spring/Summer 2018. I think we only have E70 winter blend available in Illinois right now. I have to go and test a batch to find out.
Your spool definitely looks in line with the old green which is really a plus. Did you get the Xona rotor bb housing also?
So safe to assume the new Red will flow more than the old one while keeping the same spool as the old red? Gosh I hope so.
Journal bearing with the aero nut option. It was converted/rebuilt from a stock cover 73HTA. Pictures in my build thread.
The FP red looks nice to, but I've wanted to try out the green for years now. The green has a great powerband for the street on a stock 2.0L.
When I build the engine I think I will change my setup to an FP black MHI and 2.3L stroker.
Thanks for the insight on the HTZ Green. I keep going back and forth between this and the red and I am still having a hard time deciding. Your E85 results will be my deciding factor. I'll check out your build thread.
From what I researched the new HTZ compressor flows close/the same as the original FP Red with no loss in spool from the original green. I'm glad I had FP upgrade the compressor when I had it rebuilt.
E85 coming in the Spring/Summer 2018. I think we only have E70 winter blend available in Illinois right now. I have to go and test a batch to find out.
Its spooling pretty well for single scroll but an mhi housing green be at peak at under 4000 rpm.
Thing spools a little better than red and makes power like red.
Dec 21, 2017, 01:09 PM
Silverflyer Evo 9 FP green 73HTZ MHI S2 cams results
It's a true joy to drive.
