4.1 champion iron heads and intake comp cam 212/212 hyd flat tappet 1.65 rockers cam lift 4.88/4.88, devils own injection progressive, should i run dual nozzles because running on 93 60lbs injectors tt chip vig 3200 stall LU hotwire kit not sure of turbo size i have a 60 turbo now, thanks for looking car will run mostly on street
building a 4.1 what turbo should i run
- Thread starter ericttype
- Start date
Welcome!
By registering with us, you'll be able to discuss, share and private message with other members of our community.
GNBRETT
Pelennor Fields
- Joined
- Feb 8, 2004
- Messages
- 15,860
What's ur turbo budget?
jasjamz
THS Racer
- Joined
- Sep 30, 2004
- Messages
- 5,983
Yeah the budget is a major factor. Got $2500 to spent? You could do a ball bearing billet 67mm or 70mm turbo. That way you may be able to get by without changing converters. You have the extra cubes so that helps. I think you should start out on the one nozzle and low boost then add another when you max it out.
jasjamz
THS Racer
- Joined
- Sep 30, 2004
- Messages
- 5,983
Yeah it will work fine and you can tell what you need to do from there. You could find a lot of options for $1500. Billet, non-bb, and a q trim exhaust wheel may take you a long way. Read the sticky at the top of the section. they will give you a better understanding of the different turbo options.
getchasum
MISSING 2 CYLINDERS???
- Joined
- May 23, 2002
- Messages
- 2,280
Mine's getting an old school TE45a
If your converter cant be locked at WOT or you have a stock block you will be severely limited in the amount mph you will be able to reach without engine failure. Id target 130mph and no more. If budget is of concern id go with a journal and you are probably limited to a small p-trim or if you can swing it a turbo with a 65 ex trim. If you plan on going under 125mph in the quarter a 62 p trim is plenty.
everyone is saying the 4.1 wont hold up to much, but 130 ill be happy there just looking for mid 10s. bison i have a 212/ 212 hyd flat tappet cam will this be enough cam it should be about 488/488 with the 1.65 rocker
Thats plenty of cam. Keep it out of detonation and it should last a while
getchasum
MISSING 2 CYLINDERS???
- Joined
- May 23, 2002
- Messages
- 2,280
Production 4.1’s are no slouch when built right..... A local has gone a 9.92 @ 138 mph at Reynolds. Turning it 6900 rpms at 28 psi, currently they are looking for new convertor as it's driving through the old Art Carr Non L/U. No hard block fill, no girdle, just 2 steel caps. Weight of car is 3620 with working A/C and no driver.
Has 3.600 crower crank and a "good" set of rods. Right at 270 CI. Car made several 9 second passes at reynolds. To keep from blowing thru the converter he turned timing down to 20 degrees up top with c-16. Cal was trying to calculate HP and it seems to be making around 150hp per cylinder at the flywheel to run those kind of numbers. Around a 224/224 custom grind cam. The car continues to go faster ever outting......
Tunner is looking for 140 mph at the Turbobuick.com Nat's
Has 3.600 crower crank and a "good" set of rods. Right at 270 CI. Car made several 9 second passes at reynolds. To keep from blowing thru the converter he turned timing down to 20 degrees up top with c-16. Cal was trying to calculate HP and it seems to be making around 150hp per cylinder at the flywheel to run those kind of numbers. Around a 224/224 custom grind cam. The car continues to go faster ever outting......
Tunner is looking for 140 mph at the Turbobuick.com Nat's
Similar threads
