89L98TPI

Finally was able to pick my 383 up yesterday and also had it ran in a engine dyno.

The intake used is a Victor E port matched to AFR 195 heads. My rails and injectors are bolted up but a carb was used for fueling. Unfortunately their not setup to run EFI. A quick recap of parts used:

Scat Forged 4340 383 crank
Scat Forged 4340 5.7 rods with 7/16 ARP
Probe Forged 2618 4.030 Piston
11.2:1 CR
AFR 195 Heads 65cc street port
Internal balanced
Champ Oil pan
Summit balancer
TCI Flexplate
Mahle rings
All ARP hardware
Scorpion 1.6 Rockers
LS7 lifters
Mike Jones custom grind cam:
232/236@.50 .576 .576w/1.6 112LSA/108ICL

I can not thank Will (rklessdriver) enough for answering probably 100+ emails/PM over the last 2 years and helping me build a great engine. I'm very proud of it and hope he is also. Enough blabbing. Some numbers.





Attachment 47887366

89L98TPI

https://youtu.be/tslfKChHWhA

89L98TPI

https://youtu.be/3ii66Eek0Ws

yakmastermax

Wow...

Yeah my dream build is a 383 with AFR195 heads and a FIRST intake.

DanielRicany

Dang. Those are some really nice numbers!

blackozvet

strong engine !
what injection will you be using in the car or sticking with the carb ?

cohocarl

Very nice.

89L98TPI

I'll be using this.

rklessdriver

This turned out to be a really good build.

I'd like to point out that 2yrs ago when Ron first contacted me for help, his intention was a little more modern 383 LPE 219 (or equivalent cam) Super Ram build. Most all of the engine parts were already bought with 375-425hp in mind.

Last year he was able to buy that Accel prototype TB adapter for a Single Plane intake and he flipped the switch on this build. He now wanted to tailor his build to showcase the power a Single Plane intake can make. I think it's no secret I'm a fan of Single Plane intakes for EFI, so I was excited. The only challenge was how much of the original build we'd be able to keep. A lot of compromise in my mind between these 2 engine combinations.

Obviously the cam got changed to a custom grind that I spec'd from Mike Jones EHR lobe masters. We also switched the Scat 9000 crank out for a Scat 4340 forged crank. Of course the Victor EFI lower intake took the place of the Super Ram. Everything else stayed the same.

The results speak for themselves.

I'd like to tank Ron for following through with the build and trusting me to deliver the goods. I know it took a long time to save and buy all the parts. I'd also like to thank Rhyne Competition Engines for the excellent machine work, engine assembly and dyno. With my schedule and location I can't personally machine/build every engine that I design and many times it's better logistically for that work to be done near customer.
Will

cardo0

Where can i get one of those plenums? Man thats just what im looking for. It even looks like an LT1 plenum on top too - more stock looking than a intake elbow. I would need vac ports though.

Nice numbers. Very nice build. I would like to see the numbers from below 3,000 rpm - just curious.

Thx for sharing.

1985 Corvette

Amazing numbers and loved how it settled right down into a nice burble after making all that great noise. A lot of your parts are similar to mine. I never got to researching the LS7 lifters, were they a direct drop in? I wish I had but I went with a basic Chevy set from Summit. I saw you were almost hitting 6800 rpm but did you change out any of the valvetrain or run it right out of the box as is? From the research I have done, hydraulic roller lifters are not advised at those rpm levels. What makes the LS7 version different than your basic roller lifter? Great numbers, it helps brighten the light at the end of the tunnel on getting mine sorted out.

rklessdriver

Nothing special about the LS7 lifter other than the internal valving. They drop right in any post 87 SBC or LSX.

Hard to believe but that is the base valve spring package from AFR. The power drop at 6750 is valve float starting to set in. Those cam lobes have pulled cleanly to 7000 with the AFR 8019 spring package and 1.65 rockers in an LTX build I did 2yrs ago.

Could shim those springs a little bit and gain some more over rev but with peak power comming at 6300... he's got plenty of head room for 6500 shift point.
Will

rklessdriver

I would have liked to seen it pulled lower as well but I dont
believe they really dyno'd it for power... not a buch of tuning since it's going to be efi in the car. I think this is more of a controlled run in to make sure everything is ok and give him some idea of the kind of power it makes.

Also they were kind of scared of the compression ratio on pump gas. I assured them I had plenty of head room for safety built in but people have different experience with this stuff and ultimately they were running the dyno, not me. Also, With the timing locked out at 36* a carb that doesn't have the perfect fuel distribution the efi will, the engine might not be happy being loaded on the dyno at low RPM.

I know from a previous engine with these same cam lobes (degreed in differently) and that engine had just over 400tq at 3000rpm. Very flat power curve.

93 ragtop

Hey, I have not been on this site for quite awhile. Work has been really busy. But wanted to say your build looks great!! You may, or may not know Will built my motor as well. I believe you have the same cam, compression is about the same..... But mine has a LT4 intake. I have 210 afr heads. Also I have 1.65 rockers and that gave me about .594 lift. I made 462rwhp through a 3000 stall converter that would not lock up. Car ran 11.19 at 124.7mph, and that is in a vert with a hardtop. They are heavy compared to a coupe.
I am lucky, that Will lives about 15 miles from me, so he was able to actually build my motor. He really does know his stuff.
I have since had my transmission rebuilt, and switched from the 3000 yank converter to a 4400 vigilante converter. Will and I are going to the track this Saturday. Hopefully we will break into the 10's!!
Don't mean to cut in on your post, but I think we can agree, cant say enough about Will's knowledge, his ability to help, or his willingness to help. He is truly a good friend!!
Look forward to seeing track numbers on your build.

jagriffinsf

Awesome!

89L98TPI

Yes I remember your build. I was impressed with your build and I believe that's when I started bugging Will...

If I ever want a little more maybe I'll get the 8019 spring package and 1.65 rockers.

Yes you are very lucky to have Will so close also. I hope to see your numbers and i'm sure you'll see a 10 second slip this weekend.

tpi 421 vette

Nice numbers

1985 Corvette

I backtracked my order history from Summit from back when I was still collecting parts and found out I did order the LS7 lifters. That was a nice easter egg to find out about. At the time, I thought they were a budget piece versus Comp Cams or Lunati ($680+). 89L98TPI's build is the closest I have seen to mine and a very loose interpretation of what mine might come close to performing like. We both have the exact same type of components, except change a few brand names on my parts and my 230/236 off-the-shef comp cams xfi (I know how much you love comp cams products, Will! ).

89L98TPI, what advantage(s) does that single plane have over the mini? My vision was always short sighted on intakes, it was either: want torque, go super ram or want high rpm, go miniram.

blackozvet

Oh, I like that !!

It would be interesting to see a dyno comparison of the same engine with the carb v single plane efi ??

89L98TPI

Yes it would have be fun to run the single plane and get some numbers but they weren't setup for EFI. I also have a Super Ram I would have like to run. Just for comparisons sake cause the single plane will be used.

Thanks for all the compliments and comments guys.