throttle body & exhaust

HPNOTIQracing · 02-18-2006, 08:08 PM

ok first thing im not gonna use a muffler. i have just under 14.1-1 comp. crane 18's, p&p head, p&p intake mani w/ 90deg bend removed, tti long tube header. what size throttle body should i use (mm)? and what diamiter exhaust should i use to get the most out of this set up. i know i can have more tq or more hp depending on the size of the exhaust. i want it kinda balanced.

my list
new oil pump
fresh balanced crank
piston match bore and honed block
mopar main and rod bearings
eagle rods
je pistons 12.5-1
je rings
orthodox udp
mopar head gasket kit
arp head studs
batt relocate kit
head p&p decked .0040
crane 18's
crane springs
p&p intake mani w/ 90deg bend removed
cam gears
safc2
spec stage 2 mod clutch
tti long tube header
walbro255
couple other things
i will be running megasquirt when i get the 100 shot.

Valrico31 · 02-19-2006, 05:11 PM

if you don't have the tti header already, i'd suggest to scratch that and pick up either a blackdog or fast fabrications long tube header. Neither are in production anymore but can be often found on neons.org. In terms of tb, i'd pick up a 60mm. In terms of exhaust, I always vote for 2.5" piping on a NA, but some may argue to go ahead and run 3" piping. Other little tids bits to pick up would be deyemme motor mounts and a booger bobble strut. 14.1:1 compression is really high in a neon, you don't plan on having this as a daily driver do you?

neondriver · 02-19-2006, 06:31 PM

i agree on the 60mm t/b i have one, just make sure to port the intake manifold to match the t/b. i also would say a long tube, i have a hedder and i plan to remove it with the cat for a long tube in the near future

Josiah · 02-19-2006, 08:03 PM

60mm TB and 2.5"piping(3" piping is worthless unless you are past the 300HP mark, and even then its not really needed till you go past 350, not to mention its more weight)

SlowAssNeon · 02-20-2006, 12:38 AM

side note: crane 18s are really small for near 14:1 compression!

HPNOTIQracing · 02-21-2006, 12:57 PM

thanks and the tti headers i have are long tube they are like 3 1/2 feet long. thanks josiah for helping me with all these little questions. ill have to show it to you when its done. and slowass neon i had the cams before i picked up the pistons ill probly be going up to 24's

02-18-2006, 08:08 PM	#1 (permalink)
HPNOTIQracing Registered User Car: My TRGarage clearwater : 7043755	throttle body & exhaust ok first thing im not gonna use a muffler. i have just under 14.1-1 comp. crane 18's, p&p head, p&p intake mani w/ 90deg bend removed, tti long tube header. what size throttle body should i use (mm)? and what diamiter exhaust should i use to get the most out of this set up. i know i can have more tq or more hp depending on the size of the exhaust. i want it kinda balanced. my list new oil pump fresh balanced crank piston match bore and honed block mopar main and rod bearings eagle rods je pistons 12.5-1 je rings orthodox udp mopar head gasket kit arp head studs batt relocate kit head p&p decked .0040 crane 18's crane springs p&p intake mani w/ 90deg bend removed cam gears safc2 spec stage 2 mod clutch tti long tube header walbro255 couple other things i will be running megasquirt when i get the 100 shot.

02-19-2006, 05:11 PM	#2 (permalink)
Valrico31 Registered User Car: 1998 sohc mtx neon My TRGarage Valrico : 199	if you don't have the tti header already, i'd suggest to scratch that and pick up either a blackdog or fast fabrications long tube header. Neither are in production anymore but can be often found on neons.org. In terms of tb, i'd pick up a 60mm. In terms of exhaust, I always vote for 2.5" piping on a NA, but some may argue to go ahead and run 3" piping. Other little tids bits to pick up would be deyemme motor mounts and a booger bobble strut. 14.1:1 compression is really high in a neon, you don't plan on having this as a daily driver do you?

02-19-2006, 06:31 PM	#3 (permalink)
neondriver Registered User Car: highline neon, acr neon, cbr 900rr, xr100r dirtbike, 04 altima 2.5S, 05 kawi 636 My TRGarage Holiday : 173969605	i agree on the 60mm t/b i have one, just make sure to port the intake manifold to match the t/b. i also would say a long tube, i have a hedder and i plan to remove it with the cat for a long tube in the near future

02-19-2006, 08:03 PM	#4 (permalink)
Josiah Peon on steroids! Car: 97 Dodge neon coupe(built SRT engine when I have the time) '66 mustang coupe(restomod project) My TRGarage Franklin, TN : 100	60mm TB and 2.5"piping(3" piping is worthless unless you are past the 300HP mark, and even then its not really needed till you go past 350, not to mention its more weight)

02-20-2006, 12:38 AM	#5 (permalink)
SlowAssNeon Typical Peon Owner Car: '98 Dodge Neon R/T My TRGarage Clearwater : 71	side note: crane 18s are really small for near 14:1 compression!

02-21-2006, 12:57 PM	#6 (permalink)
HPNOTIQracing Registered User Car: My TRGarage clearwater : 7043755	thanks and the tti headers i have are long tube they are like 3 1/2 feet long. thanks josiah for helping me with all these little questions. ill have to show it to you when its done. and slowass neon i had the cams before i picked up the pistons ill probly be going up to 24's