Zippinzee

If both are air to air intercooled which would be better for a heads up class. The LS engines have to use oem heads. What kind of power could a racing fuel no meth set up make? Nos SBC rule the class now and run 5.60 5.70. Can a F/I LS engined car compete? The SBC cant use 18* heads. Car will have to weigh 3300 with driver.

LS1LT1CAM

Where is this class located
the NMCA class is limited to a d1sc or a 72 mm with 550 lift cam and 220 runner heads and many of those cars have gone low 5.80 and high 5.70 in the 1/8 and 8.90's and 9.0's so with a f1r or 76mm 5.60s should be possible

I am building a 6.0L for the NMCA street race class at this time the class rules changed from 72mm to a 70mm think that i should be able to make 1050hp and run low 9's high 8's

I would run the 76mm if it was me

Zippinzee

Its a local series here in DFW Texas. The other thing is they have to run with 275-60 M/T radials or 11.50-15 E/T streets.

LS1LT1CAM

same tires that are allowed in the Street race class

wish was closer to IL like the NMCA but lots of traveling sound like a fun class

1320.com Mike Fantena runs in the 8.99 on an video on 275 bfg's 1.3 something in the 60 foot with cheap 355cu and precision 72mm turbo check it out

Good luck on the build what is the class record

Zippinzee

I believe a 5.67 at around 125-6. I think it can be done also. Here is a link to the rules the class is True Street.

http://www.texastrueten5.com/

platinum1

iTrader: (7)

F1R, they make killer power!

jamnut

iTrader: (4)

It really depends on what they make you stick to for a turbo. There are people out there that can build killer 72's, just depends on the rules.

slowredz

iTrader: (23)

My car is about to go together, legal for TTT5. I did an 408/F1R. Also they are allowing aftermarket heads as long as they are stock valve angle. I have Darts.