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01-28-2019, 04:56 PM
Replies: 62
Views: 2,740
Posted By GREGGPENN

For that matter, since the "Kart" is so much...

For that matter, since the "Kart" is so much lighter, TQ-to-weight goes way up anyway. Seems like the ONLY REAL choice is something high-revving. HSR or MR. Why go after more torque is the...
01-23-2019, 05:18 PM
Replies: 62
Views: 2,740
Posted By GREGGPENN

Brian provided a good link (you've probably seen)...

Brian provided a good link (you've probably seen) in post #19. Like most dynographs, we are deprived of sub 2500 RPM statistics. That said, you can see the fully-siamesed SLPs display the same...
01-20-2019, 01:46 AM
Replies: 62
Views: 2,740
Posted By GREGGPENN

If you're still interested in your original...

If you're still interested in your original question, I might consider commenting. If not, I don't want to look up a couple of things for supporting comments (in addition to personal experience --...
01-20-2019, 01:43 AM
Replies: 6
Views: 366
Posted By GREGGPENN

1990-1991 aren't the easiest to tune (if you make...

1990-1991 aren't the easiest to tune (if you make changes). If you're planning a future build ANYWAY, you might want to follow the suggestions of making smaller improvements to avoid (current)...
01-19-2019, 03:47 PM
Replies: 9
Views: 432
Posted By GREGGPENN

The starter was my very first "service". I bought...

The starter was my very first "service". I bought my 89 in 99 and had to replace it during the first year/two. It only had 15-20k miles at that time. I bought a starter from O'Reillys. I've no doubt...
01-18-2019, 03:30 PM
Replies: 9
Views: 432
Posted By GREGGPENN

Starter swap on my 89 ZF6 was easy peezy! No...

Starter swap on my 89 ZF6 was easy peezy! No exhaust moves required!
01-18-2019, 03:25 PM
Replies: 6
Views: 366
Posted By GREGGPENN

Are you looking for a cam that will be usable in...

Are you looking for a cam that will be usable in your future 383 build? Or would that be a complete new engine?

My recommendation would be to use Bullet Cam's HR269/340 lobe on both...
10-11-2018, 03:47 AM
Replies: 4
Views: 633
Posted By GREGGPENN

All non-ZR1 DMFs are interchangeable. If the...

All non-ZR1 DMFs are interchangeable. If the seal is bad, the clutch will slip. With the trans removed, you will see the bad seal (leakage). Somewhere around 91 (I think), the seals were...
09-03-2018, 12:24 AM
Replies: 54
Views: 2,215
Posted By GREGGPENN

Thanks Brian. I had understood injector...

Thanks Brian. I had understood injector calculations...including duty cycle and BSFC since the thread I linked. Though, I've never confirmed whether it's wheel or crank horsepower people talk...
08-30-2018, 11:55 PM
Replies: 54
Views: 2,215
Posted By GREGGPENN

Extraordinarily high FP was not involved when...

Extraordinarily high FP was not involved when Corky made the claim/observation. I don't think Jon, Corky, nor myself started that thread so finding it has been very difficult. To run a 10.5 sec...
08-30-2018, 06:09 PM
Replies: 54
Views: 2,215
Posted By GREGGPENN

Hopefully, the OP's question basically answered...

Hopefully, the OP's question basically answered so I'll post this versus taking it "offline"....

Brian...you are a smart guy with more experience than me so I have to volley back..... Corky was...
08-30-2018, 08:06 AM
Replies: 54
Views: 2,215
Posted By GREGGPENN

Yes and no. Again, as I've mentioned a couple...

Yes and no. Again, as I've mentioned a couple of times recently, batch-fire engine (like the L98) can throw some serious fuel with smallish injectors. Because it can "inject" fuel on each crank...
08-29-2018, 06:12 PM
Replies: 54
Views: 2,215
Posted By GREGGPENN

Not trying to jack anyone up but the OP's 1991...

Not trying to jack anyone up but the OP's 1991 car ALREADY HAS 113 heads on it (contrary to the Clove86 user handle)! LOL :reddevil That's why I asked the question about speed density that you...
08-29-2018, 06:52 AM
Replies: 54
Views: 2,215
Posted By GREGGPENN

Here is what a TPIS "Big Mouth" intake looks...

Here is what a TPIS "Big Mouth" intake looks like:
https://www.thirdgen.org/forums/attachments/engine-drivetrain-suspension-parts/442484d1501532663-tpis-big-mouth-slp-p1010895.jpg



Notice, how...
08-26-2018, 08:36 PM
Replies: 36
Views: 1,525
Posted By GREGGPENN

I think so too. Looks like my 89 Radiator...

I think so too. Looks like my 89 Radiator shroud (box) in the pic. That must have been an LTx transplant car. Maybe why he sold it?

Interesting that TPIS made the early version from...
08-26-2018, 07:04 PM
Replies: 36
Views: 1,525
Posted By GREGGPENN

Hmmmm....Just looked on my PC and found [what I...

Hmmmm....Just looked on my PC and found [what I think are] the original 4Sale pics for the unit I have. I have to wonder if I bought the wrong one (for an L98). First pic shows the AF1 CAI mounted on...
08-26-2018, 04:29 AM
Replies: 54
Views: 2,215
Posted By GREGGPENN

For my edification (and possibly the OP's), is...

For my edification (and possibly the OP's), is the [15%] ability to correct the same for MAF and SD cars? I always thought MAF cars have more flexibility for modification than 90-91 SD cars. ...
08-26-2018, 04:22 AM
Replies: 54
Views: 2,215
Posted By GREGGPENN

I'm with you tequilaboy. Doesn't look like an...

I'm with you tequilaboy. Doesn't look like an aftermarket intake....though nicely polished. Just because it's got a TPIS EGR plate, doesn't mean the lower intake isn't stock. Aftermarket bases...
08-23-2018, 11:09 PM
Replies: 36
Views: 1,525
Posted By GREGGPENN

I will assume you prefer pics of the later model....

I will assume you prefer pics of the later model. The earlier model is similar in appearance/config to the OEM unit -- except with the air cleaner flipped upside down. The owner would be required...
08-23-2018, 06:28 PM
Replies: 54
Views: 2,215
Posted By GREGGPENN

To maximize your ability to run w/o a tune for...

To maximize your ability to run w/o a tune for any given period of time, install injectors the same size and as close to the same characteristics as stock. I don't know what stock 91 injector size...
08-23-2018, 04:11 AM
Replies: 36
Views: 1,525
Posted By GREGGPENN

Interesting....I didn't know they made a model...

Interesting....I didn't know they made a model for late model and ZR1 cars. I bought one many years ago. They were scarce back then. Still on a shelf in my garage. Keep thinking I'll want it...
08-17-2018, 01:35 AM
Replies: 44
Views: 2,345
Posted By GREGGPENN

^^^Sorry....Not the whole story. I hogged...

^^^Sorry....Not the whole story.

I hogged (megaported) SLP longtubes out so much, I was shooting for SR-like power curve and performance. For those of you who remember Mick Stevens, he...
08-16-2018, 02:29 AM
Replies: 44
Views: 2,345
Posted By GREGGPENN

No mention of your transmission, shift kit,...

No mention of your transmission, shift kit, and/or gearing. Maybe you are asking to determine what stall to install? Rarely do people talk of rebuilding ZF6...which is possible with your 89. ...
08-09-2018, 10:52 PM
Replies: 56
Views: 1,426
Posted By GREGGPENN

750 might also be a "countermeasure" to insure it...

750 might also be a "countermeasure" to insure it doesn't die when dropping it into gear?

I agree with the assessment idle can't be forced by rotating a distributor. The ECM is programmed to...
07-09-2018, 05:41 PM
Replies: 12
Views: 316
Posted By GREGGPENN

Interesting. I would expect a series setup to...

Interesting. I would expect a series setup to cause an entire bank's failure. Multi-light fixtures (in your home) are wired in parallel so each light can work independently. You may be right...
Showing results 1 to 25 of 483
 


 
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