03EBZ06

Having a hard time finding combo w/these heads. Anybody know what I should expect from a 402 LS2 + TFS235s w/236-240-112-0? This combo will be done in less than 2 weeks and I will report results, but just curious what most think its worth in power. Intake = FAST 90 + LS2 90 ported by Vengeance.

I've seen numbers range from 460-600rwhp. I was hoping to get in to the
low 500's at least.

mike c.

iTrader: (1)

Judging from my 402ci w/a m6 you should see 520-540hp and 470tq pretty easy.

venom ws7

iTrader: (13)

I agree with the post above.

but the catted X-pipe and Ti Exhaust will hold the power down a little but even with those you should have a sick car.

03EBZ06

Gotta figure out what to do w/Ti exhaust. Not sure which one to get at this point.

smok'nZ

iTrader: (160)

swap those 1 3/4 for the 1 7/8 that should help your low 500 goal

Brian Tooley Racing

iTrader: (13)

Vengeance has made 540+ RWHP with the TFS 225's on 402's, and I had a shop in FL pull 225's off a 402 and install 235's and pick up over 10 RWHP and over 10 RWTQ back to back, so you should be fine. Stepping up the headers to 1 7/8" will help.

I have a customer with a 402 and TFS 235's that ran 8's in the quarter with a Fast 90, hyd roller cam and 2 stages of nitrous, but that's probably not what your looking for

allngn_c5

iTrader: (3)

Save or sell the Ti, and buy an LG Big 3 cat back to let that sucker breathe, billy boat exhaust' BULLETT is nice and mean, but I'd rather have true 3 inch with 402 cubes.

ryan@rpm

iTrader: (5)

We did a 402 with TFS 225's the cam was a 24X-25X on a 114 LSA. The car had a TH400 with a 5K stall and 12 bolt . It made around 515 rwhp SAE !!!! This was done through mufflers too and 1'' 7/8" QTP's .

jeremym

iTrader: (3)

554 rwhp and 515 rwtq on a 414 with 235's

03EBZ06

I would like to see 500+ rwhp!! I may need to step up the cam and exhaust. Can't wait to baseline to find out.

How is this monster cammed?

My goal is to gain over 100 average engine hp from my old combo to my new one. I figure the old engine was making 475fwhp. At 575fwhp in my car, that would put me around 500rwhp, solid in 10's, and close to 130mph through 1/4.

If the car runs hard w/the cam I have chosen, then I will step it up again and see what happens. Based on what I'm reading, some of you are experiencing great performance with much larger cams. Looked at Borlan exhausts last night. Whew. $1600 replacement.

Hark_Z

iTrader: (12)

Can't wait to hear your results..My setup (getting closer)
WRE built 402
going with TFS 235's
FAST 90/90
large hydraulic or SR, havent decided (Vengeance)
1 7/8" headers, 3" TD's
TH400, 9", 4.11
I'm shooting for 500 as well..Keep us posted.

Brandon

PAGregSS

iTrader: (10)

A friend has an LS2 402,TFS 235s,Rapid Dominator cam, and Fast 90/90 that made 513 rwhp with Kooks headers, offroad pipe, and Borla. 6 speed car through a 9".

03EBZ06

Should get the horse back on Wed. How would you guys break in this bad boy?
I plan to tune it up on the dyno before it leaves the shop.

Slowhawk

iTrader: (12)

I have a similar setup with a 408ci,235's,low 240's cam but 11.9-1 comp that is running and will be dyno'd/tracked next week.We are running the edelbrock carb intake.Car is idling at 850rpm no problem wright now.

silverbeast

iTrader: (16)

Please post up the results when you get them,

gnx7

iTrader: (28)

A friend with a 416ci setup, TFS 235's, ported FAST90/90, 1 7/8" headers, dual 3" into a single 3.5" cat then 3.5" all the way back to an e-cutout, T56, IRS Ford 8.8" rear made 530rwhp and 500rwtq running a small 235/235 115LSA cam! This is in a 2850lb FD RX-7. It scoots.

03EBZ06

ITS ALIVE!!!!!!!!

I set up the tuning to SD mode and started updating the VE table w/RTACS/Road Runner. We initially used a load bearing dyno to update as many cells as we could, then I took it for a highway trip about 10 miles to cool it down.

Its got a nice chop to the idle, good oil pressure, and is quieter under the hood than my stock 346 block w/respect to valves and engine noise. I have not got on it as I'm setting up a few tuning params first, but the engine seems to have A LOT of torque in any gear.

Should have it tuned, dynoed and reports by next week. stay tuned...

Pray

iTrader: (7)

I just made 540/495rw on the break in dyno runs with my 416 w 235's.

Johny GTO

sweet setups everybody. Good luck to the O.P.


Pray,
Thats bad ***.

Pray

iTrader: (7)

Thanks. I got to the track last week in the nasty heat and humidity with a DA of over 3,000ft and ran 10.76@130.88 with a 1.73 60ft in street trim, I ran almost 105 in the 1/8th with heavy rims on DR's. I am expecting to see 9.9@137 with my cam and intake change, a drag pack, and good weather.