Is this a daily driver too? I doubt it will be pump gas friendly with that compression unless you plan on running 93 octane. If it will be mostly for racing, I would change to a 2vr FT piston for more compression. It just depends on what it will be mostly used for. As far as HP, I would guess 325 - 350 with that setup but I may be on the low side. As far as ET, that's only part of it, your 60' time is tied to your ET also and the lower, the better.

 

.039 quench, and a steady diet of 94 octane, and under 10.5 comp with alum heads doesn't really concern me. Jeeze I hope your numbers are low lol......not a daily no, but rarely a race car. Will see some track days, both road course and strip. Mostly just a nice day, or fri-sat night toy.
Thanks for the input
Dave

 

Dave.My question is while your in there,why not a cam swap that you think is too small anyways??.Your waiting for the heads so in the mean time maybe you could come up with the money for a cam and kit.

I do agree totally with you on a 10.3 SCR being no problem with those heads.Sounds like the potential of a real good smart build driver.

Wanted to say with us nothing gets put on anything out of the box without being totally checked out.That doesn't matter who's brand name it is.

 

That was my original intention actually, but with more cam comes more converter comes more gear and so on and so on lol....
So I'm trying to "use my head" for a change and not turn it into a bigger project then it needs to be, which is a huge undertaking for me lol. Everything on the car is new from motor to trans to rear, I was hoping to see 375-400hp with the head, intake and Carb swap. IF...and its a big IF, I'm in that ball park then i will run it this summer and be happy.......the car isn't as heavy as most of the ones I drive, this one's actually been on a scale and comes in at 3270# without my giant *** in it. So 400hp, an overdrive, and big sticky tires and an actual suspension I can turn corners with sounds like lots of fun.

 

At my power level is there a noticeable power difference from 3" to 3.5" ....local guy here has one for sale as well for 175$ but I didn't think it was worth it for minimal if any gains.
HP guesses?

 

Really? Nobody has DD anymore? Lol.

 

Bump as i see Richard is back

 

I'm in the middle of putting a business together and can't spend as much time as I used to on here, but will try to do a DynoSim for you this afternoon.

 

i get more in the 9.8cr range, guessing at a .020 deck and 62 degree closing on the cam (guess only) w a 7.02 dynamic......so yeah, pump gas works (91-93 octane).....however....if you havent decked it, then that .059 quench is not very good....may have to take some timing out of it

 

Yes, its been zero decked actually, I get 10.2 comp, with .041 quench.

 

yeah thats about right, i went with the assumption that is wasnt decked cuz you didnt say, so i added .020 back in.....thats why i was saying a .059 quench......i had a motor almost identical and it made 415 @ 6400.....i had better heads though

 

Better heads? What were you using?

 

****, i guess i dont read very well, i see you said zero deck now....sorry

 

I had a set of ported Canfields on it.......its be awhile, i think they were 200 intakes.....pulled hard up to around 6600 then the cam fell on its face.....

 

With 1.6 rockers and long tube headers off the top of my head I've give this about 450 horses around 6000 RPM. The short tube headers are going to hurt peak power by maybe 20-30 as the XE268H has a fair amount of overlap which likes and can take advantage of the pulse tuning present in long tubes.
You might be able to make that up in part with long 3 inch collectors instead of 2.5. But if the vehicle is low and the roads rough, you just have a problem that isn't easy to overcome without going to lake pipes outboard of and at the rocker panel's level.

The XE268H likes 1.6 rockers, these fast, short ramp cams react better to 1.6 rockers than do older muscle car design cams where a lot of ramp tends to be used which takes a more RPM and compression to overcome effects from the late and slow closing intake. Since today's unleaded fuels just don't allow ratios much beyond 9.5 for iron heads and 10.5 for aluminum running a faster acting cam to reduce the costs on compression of a late closing intake is a good solution. The back side in your case is going to be fast opening on the lift side which will want to emphasize wave tuning on overlap will not be effective with your exhaust.

But all in all this is a good engine layout and sure to push an engine dyno into the lower to mid 400 horse area.

Bogie

 

Its not an XE, just a 268H, 218/218, 469/469
As for exhaust, I do know I'm giving up something but not sure how much, the drivers side crossover meets the pass side fairy far under, and the pass is long, the merge is under the pass floor area, no cats, and they meet into a dual 2.5 to single 3" merge then 3" to the rear.

 

I did pick up a brand new performer rpm for 100$ on my way home from work today! I had a used one, but couldn't turn this down lol. Dug out my roller rockers, seems I'm missing the poly locks, and 3 rockers, oops....so ordered new comp ones today, stayed with 1.5 tho, and a pushrod checker. Then called Dave at pro-filer and kinda got a tad pissy, its only been like 9 friggen weeks or something, he assures me they will go out this week. Better be worth it.

 

Just because, eBay Gt45, eBay Turbo manifolds, eBay intercooler, walbro 255 inline, aeromotive reg, will mod my current 750 for boost following hanger18 instructions, and see what happens.
Was going to keep my mouth shut cause I'm known to change directions, or cars lol. But this is way to cool not to do....

 

Isnt it nice to be able to get the basic components for a turbo kit at a affordable price. I waited a long time for that. $4-5k on a kit is not reasonable to me.

$4-500 and your talking. Most people spend that on coated headers.

The little *bay t34 can be mounted on civic, integra, neon, cobalt, focus, Saturn, sunfire, etc.

A twin cam Saturn sl from 2000, can become a self destructing terror. Who would have thought the Saturn sl could become fast as the old factory corvettes. The fact that you only have to spend $500 to get there is a slap in the face. Then to be able to turn the power down for longevity is a bonus.

People said that the 90's mustangs were fast stock. I think they ran 15 seconds in the quarter and made 180 rwhp. A Saturn twin cam with these kits cam make over 200fwhp.

This is the hotrodding of today. It has to be. There is nothing but these crappy 4 cylinders everywhere I turn. If you can turn a wrench , now you can do something with them.

Im not sure about the legalities or ethics of it . Somebody else would know better

 

Its hilarious actually, I spend an obnoxious amount of time on turboforums and this stuff has gotten so simple its embarrassing....not sure if u have read the grenade thread over there, but its epic. I spent $150 on this Turbo, eBay cooler is $200, charge piping etc, maybe $100. Was looking at eBay Turbo headers but the way the cross over runs I may just make my own pass side with a merge from the drivers side and go from there. I am more the willing to see how long the bottom end hold up with decent forged slugs and really good flowing heads on 15# of boost lol. A wideband, a modded 750dp. And the biggest expense will be an MSD 6AL2 box. I know from digging through some past posts on here that not everyone agrees, but making 600+whp with 8.5comp, real good heads, and 15psi or less is not rocket science. Making it live, and the parts behind it live may be a different story lol, but I will fix and upgrade as its needed.