Another 355 TPI car lays down big numbers and takes over "King of the West Coast" TPI cars.

Congrats to Adrian (topteam54) outstanding results!

431 RWHP 429 RWTQ

Super Ram, XFI 280, AFR 195's, Dyno Don shortys, Tremec T-56, 3.73 Strange rear.

 

This thread is useless without dynographs for the rest of us to ooh and ahh over.

 

Jealous?

Will be forthcoming....

 

I am not jealous. I'm too lazy to do the work needed to make power with TPI but I give props to the people who want and do and eagerly read the threads.

I'm much happier with my LT1 and someday will make the jump to Gen 3/4. Or I might sell the car before I get there. Who knows.

 

I'll admit, I'm jealous those are excellent numbers!

 

Thanks Kevin for a great tune. Allen and Don of course for the help and work. Especially when I was frustrated with this car.

Dyno charts and Video of the pulls are out there. Hopefully they will be posted up soon for all those that "proof".

 

hard to get a LSx to make that kind of torque unless you are 6.0 or higher displacement.

Very strong numbers for those heads/cam. Good job

 

Wish we had guys that tune like you SoCal guys do...!
It's only a 31hr drive down there...

 

I was there as a witness. That was one remarkable demonstration of power from a 355 cubic inch motor with a Super Ram. Just think with a couple of tweaks to the exhaust system, maybe an electric water pump or an under drive pulley, it just makes me wonder how much higher it could go. Could it be 440+ horsepower to the rear wheels? Just amazing.

 

very nice #'s. now just think toss a 420 cubes under there. Kinda like LPE did back in the day.
would be a killer trq monster

 

Thanks for the help and motivation. Yea I forgot I still have the stock pulleys. As far as the exhaust I'm going to look into that possibility when my cats go out. But other than those touch ups I'm done (no mas). I need to finish those two other blower builds.

 

For those who don't believe it then here's the video. Enjoy!

 

Wow impressive sir!

 

Is he rocking the new AFR heads? Also, where was peak power with that superram?

I might need to send one of my setups off to get ported and welded.

 

Any more details on the engine spec?

 

It's just a 355 with some bolt ons

 

How about the camshaft?

Was there any work done on the heads?

What size injectors etc?

 

280xfi, afr heads no extra porting done, 30lb cobra injectors.

 

Nice job bro. Where u get injectors from? Wonder what mine will push with 355, accel lower intake AS&M runners,ported plenum, bbk 58mm tb, 195 afrs, t56, 373s edelbrock headers...

 

Thanks, as for the injectors? I forgot where I got them from. I'm sure it was the forum somewhere.

As far as your combo the edelbrock headers are going to be a restriction point. What version AFRs and cam are you running? Also might want to look into getting your base worked over and ported. Good luck

 

I left all his info in the youtube video. Look at the discription.

 

Peek HP was 5700, peek TQ was 5100.
If you havent seen other dyno videos we made, go to youtube and type in my name and you will see all the dyno videos i posted.

 

Lot's of power there, Adrian.

 

Awesome! I'm running a 383 with similar specs, not tuned yet; nice to know the power potential is there. My engine builder had estimated 425 FWHP.

 

VERY impressive. The HP curve looks very nice as well.

It looks like more maybe could be had with more fuel or does it make more leaning out at the top end?(per the AFR at the bottom)

 

Still shows a restriction on top end with hp and torque peaks so close together. That cam wants to spin up abit more. What was done to the runners? This use the welded up bases that flow 280-300 cfm?

 

Yes, that is a welded and ported base flowing 328/332.
The runners are Siamesed by 89GTA

On another note, I think I have come across the answer to the top end falling off, still researching but from my findings, all the cars we have done with manual trans, we have started with the 305 program and they all do the same thing, but not so with the auto cars. I will be looking into redoing the chip on my car starting with an AUJP prom and importing the manual tables to it.

 

Thats interesting... What in the bin would cause that to happen whether its manual or auto?

Try the manual vette bins to see if it makes any difference. I would have thought runner length of the superram runners or diameter but if they are siamesed and total runner length is below 15", then it should peak in the mid low 6000's like it does on stealth ram miniram cars. Last one i tuned had valvefloat but was on its way to peaking by 6100-6200 in a 360" motor

 

Pretty impressive HP from that motor. The TQ peak of 5100 (although it is pretty flat) is something odd to me - especially for a hp peak of 5700...

 

Here is the graph....
Notice on the green one where I ran it out to 6000, it fell at 5700 just like all the others.

 

Good idea, didn't think of that (Corvette bin)

 

When we first started doing our own bins, I thought there was something different about the Corvette bins that doesnt work with the F-body setup. I know the oil temp sensor is one, and that can be turned off in the chip, but wasnt there something else?

 

Fans were different but there is a flag you can turn on/off as necessary. Stock arap bin in fbody runs fan on all time at key on. Its wired differently or something like that. Flag you select is suppose to correct that. I dont recall what else.

Very least you can try bin compare and just copy main tables over.

 

Nice numbers! Great job you guys! It's been a looooong time but I think I started with a Vette bin and turned off an oil sensor code for mine...if my memory is worth a crap still. lol

 

When I did his runners I looked at his previous best(394hp?) to see were peak power was being made. I then ported the runners accordingly. Total length including the heads is around 15". I only took off maybe 3/4" of an inch inch runner length for the siamese portion. The runners were welded up for maximum porting to match the base. From the factory they are pretty small in area where they start to make the turn. That area really needs the work.

I think Don has hit the nail on the head with the 305 manual bin. All the manual cars to the same thing. Must be something "hidden" in the code to help keep from over revving the motors and keeping the warranty in check. The automatic cars have no such problem as I have had mine up to 6750 rpm with no sign of a let up. So maybe working with the Corvette bin might be the answer. OK Kevin you have some work to do.

Edit: If this problem gets resolved this will open up a new world for the manual TPI cars. Because of this they have been held back.

Edit: The reason I picked that runner length was to ensure that Adrian picked up the 3rd harmonic induction wave.

 

Might be a question for rbob. I will do some bin compares but not sure if that will show anything. Its not actually hitting a limiter? What did air fuel and timing do after that rpm? Base pulse width limiter at all?


This a speed density car? My buddy uses 730 ecm on his 406 to 7000 rpm just fine. t56 car. I will ask what he uses. There is a pulse width limit in the code but you dont seem to hit that until 460 whp with high duty cycles. Or was it duty cycle limited only? I just know that motor capped at 468 whp and wouldnt respond to changes because code was limiting the inj bpw. There is a thread here somewhere on it

Edit: he uses aujp bin

 

They are speed density cars. I will let the either Don or Kevin answer the other questions even though I "think" I know the answers.

 

Have any of you guys considered the LS1 PCM conversion? Or would that mess with the smog ****'s?

 

So, we'll assume the DFI guys have no issues revving either? I remember seeing a 3rdgen stock eliminator car on a dyno session once with Accel DFI, long tube runners, lots of cam duration but factory spec lift to meet requirements, etc,.... and it revved to 6500 no problem! I'm thinking 6800 was when we shut it down. Power was flat past 6 but never seemed to fall off! Car ran 11.90's I think. It was nuts!

 

I read something similar in one of the Chevy mags about a similar car. 305 TPI car ran mid 11s. Don't remeber what computer setup it had though.

 

wow! what were the power adders?

 

Nope! We're only using the factory ECM and harness. This way we can show what can be done with factory parts without wasting money. Do we have the best combos? No. But were not too far off. We are still learning and sharing it with the world with nothing to hide. We are the Dyno Kings of SoCal. We know what works and what doesn't.

 

That last part of the paragraph isn't stated correctly. We're still exploring what works. Because like Don stated maybe our 305 proms are our problem (for some of us).

 

We also have had some good luck at the track to.

 

So when a superram makes power with a TPI computer, it's still considered TPI?

Nonetheless, very impressive numbers, always good to see an EFI Gen I make real power...

 

What would you call it? Isn't it an expansion of the TPI system? It has runners like the stock set up, it has a plenum like the stock set up.

 

Double post(iPhone)

 

Great results!

 

Impressive!

I know that So Cal doesn't have many dragstrips, but track results would be cool to see. Install a 9" or 12 bolt, slicks, and go run some low 11's!

 

Actually no it isn't technically... Because the tuned port induction part of the equation is eliminated - it is now an EFI SBC.

I've had arguments in the past with people who went superram/miniram with DFI or whatever saying it is still a TPI car. It was a TPI car in that case.

But still, using a factory TPI computer with those numbers is impressive...